Minor Works Control
(Technical Guidelines on Minor Works Control System and B(MW)R refers)1.0 Interpretation
n Designated minor works I,II & III - 118 types (B(MW)R3 and Schedule 1)
l Type A – A&A works
l Type B – Repair works
l Type C – Signboard
l Type D – Drainage
l Type E – Amenities
l Type F – Finish
l Type G - Demolition
n Designated exempted works 15 types (B(MW)R5 and Schedule 2)
n Prescribed building works 4 types (BR(MW) and Schedule 3)
n Exempted building works (BO41)
2.0 Statutory procedures for carrying out “Minor Works”.
2.1 Existing “obtaining approval and consent” process (BO14):
n Appoint PBP (BO4, B(A)R23, BA4)
n Appoint PRC (BO9)
n Submit Notice of Commencement of Works 7days before (B(A)R20, BA10)
n Carry out works on site
n Submit Certificate of Completion for new building (BO21, B(A)R25 and BA13) within 7 days to AP/RSE/RGE and within 14 days to BA
n Submit Certificate of Completion for not resulting in new building or A&A works (B(A)R25 & 26, BA14) within 7 days to AP/RSE/RGE and within 14 days to BA
2.2 Class I MW (B(MW)30 to 32)
n Appoint PBP (BO4A & B(MW)R27, 42 , 55)
n Appoint PRC (BO9AA & B(MW)R28 & 43, 57)
n Appraise the building record & original design (TG on MW s11.1)
n Submit Notice of Commencement of Works 7days before (B(MW)30 & 37, MW01), site photographs, prescribed plans & details and supervision plan (TM s6.4) to BA.
n (use form MW33 for submission of supplementary document)
n (additional or revised minor works form MW11 7days before)
n BA issue acknowledgement letter
n Carry out works on siten Submit Certificate of Completion within 14days (B(MW)31, 32 & 37, MW02), photographs, and prescribed plans & details.
n BA issue acknowledgement letter
2.3 Class II MW (B(MW)33 to 35)
n Appoint PRC (BO9AA & B(MW)R28 & 43, 57)
n Appraise the building record & original design (TG on MW s11.1)
n Submit Notice of Commencement of Works 7days before (B(MW)33 & 37, MW03), site photographs, and prescribed plans & details to BA.
n (use form MW33 for submission of supplementary document)
n (additional or revised minor works form MW12 7days before)
n Issue acknowledgement letter by BA
n Carry out works on site
n Submit Certificate of Completion within 14days (B(MW)34, 35 & 37, MW04), photographs, and prescribed plans & details.
n Issue acknowledgement letter by BA
2.4 Class III MW (B(MW)36)
n Appoint PRC (BO9AA & B(MW)R28 & 44)
n Appraise the building record & original design (TG on MW s11.1)
n For signboard, submit Form MW32 for requesting the submission number in advance & display on the signboard upon completion of works (B(MW)36 & MW32)
n BA issue acknowledgement letter
n Carry out works on site
n Submit Certificate of Completion within 14days (B(MW)36 & 37, MW05), photographs, and prescribed plans & details.
n (use form MW33 for submission of supplementary document)
n BA issue acknowledgement letter
3.0 Categorization of MWs
3.1 Building Works Associated with Service Lift, Stairlift or Lift Platform
| MW items | 1.3 | 1.33 |
| Simple Comparison of Descriptions | … installation or alteration of service lift … | … removal of service lift … |
| No additional load to cantilevered slab; | ||
| Not involve alteration of structural elements, except a simply supported beam that – (i) not of pre-stressed construction; & (ii) not used to support any column, flat slab or ribbed beam. | ||
| Rated load of lift ≤ 250 kg; | ||
| Internal floor area of lift car ≤ 1 m²; & | ||
| Other considerations | • B(C)R 9A, Lift Code & PNAP APP-29 – construction of lift well, lift pit, machine room, etc. for the service lift. • B(C)R 90 & FRC Code para. 11.1 & 11.2 – provision of fire resisting construction to the vertical shafts. • Associated slab openings may be MW item 1.2 or 2.1. | |
| MW items | 1.4 | 1.34 |
| Simple Comparison of Descriptions | … installation or alteration of stairlift or lifting platform … | … removal of stairlift or lifting platform … |
| No additional load to cantilevered slab; | ||
| Not involve alteration of structural elements, except a simply supported beam that – (i) not of pre-stressed construction; & (ii) not used to support any column, flat slab or ribbed beam. | ||
| Other considerations | • B(P)R 72, PNAP APP-41 & BFA Manual Div. 13 & 19 – provision of clear signs of stairlift or lifting platform for used by persons with a disability & provision of vertical transportation to persons with a disability. | |
| • Stairlift / platform not located inside the required staircase; & • Existing provision under BFA Manual not contravened. | N/A | |
3.2 Canopy
| MW items | 1.27 | 3.25 | 3.37 | 3.38 |
| Simple Comparison of Descriptions | Erection, alteration or removal … | Strengthening … | Alteration … | |
| unauthorized … | ||||
| projecting from external wall … | ||||
| over an entrance to the building; | N/A | |||
| No additional load to cantilevered slab; | ||||
| Not constructed of concrete; | ||||
| Project > 500 mm &≤ 2 m; & | Project ≤ 500 mm; & | Project>500mm & ≤ 750mm immediately before; | ||
| Project≤500mm immediately after; & | ||||
| Highest point > 3 m from ground. | If highest point ≤ 3 m from ground, not project over any street / common part of the building. | |||
| Other considerations | • B(P)R 10(1) – Adequate clearance (clearance ≥ 5.5 m & ≤ 7.5 m) beneath the canopy if it is within 600 mm of the outer edge of a footpath or projecting over a road. • B(P)R 10(2) – Adequate clearance (clearance ≥ 3.3 m & ≤ 7.5 m) beneath the canopy if it is over a footpath. •B(P)R 10(3) – Provision of adequate surface water drainage. •B(P)R 10(4) – Not projecting over a street by > 1/10 of its width or within 4.5 m from the centre line of street. • B(P)R 12 – No doorway to the top of canopy. • B(P)R 2 & 31 – Min. dimension of the unobstructed horizontal planes of the open air not affected when fixing canopies at light wells or reentrants. • PNAP APP-139 – Allowing for the wind channel down effect in design. • Agreement from the IO / co-owners of the external wall / roof (if being common part) should be sought. | |||
3.3 Drainage
| MW items | 2.30 | 3.23 | 3.24 |
| Simple Comparison of Descriptions | Erection, alteration or removal of aboveground drain … | Removal of Aboveground drain … erection of which … unauthorized … | |
| No additional load to cantilevered slab; | N/A | ||
| Not MW item 3.23. | Not involve main pipe, other than the replacement of components at existing junctions; & | N/A | |
| Not involve embedded pipe, other than through a wall or slab. | |||
| Other considerations | • B(SSFPDWL)R 11 – Proper disposal of soil. • B(SSFPDWL)R 24 & 25 – Provision of traps in soil & waste pipes. • B(SSFPDWL)R 28 – Control of bends in soil & waste pipes. • B(SSFPDWL)R 29, PNAP APP-93 & PNAP ADV-14 – Provision of access for repair & maintenance. • B(SSFPDWL)R 34 – Control of the materials for pipes. • PNAP APP-133 – Using cast iron pipes of acceptable performance requirements / standards. • FRC Code para. 10 – Protection of openings for the passage of pipes through fire resisting walls & floors. • Agreement from the IO / co-owners of the external wall / roof (if being common part) should be sought. | ||
| MW items | 1.25 | 1.36 | 2.28 | 2.36 | 2.29 | 1.26 |
| Simple Comparison of Descriptions | Repair … | Removal | Repair … | Removal | Addition or alteration … | |
| underground drain … involve excavation of … | ||||||
| depth > 1.5 m & ≤ 3m; | depth ≤1.5 m; | depth >1.5 m & ≤3 m; | ||||
| Distance between excavation & structure / building ≥ depth of excavation; | ||||||
| Not involve excavation within “scheduled areas” No. 1 or 3; | ||||||
| Not involve the last manhole; & | ||||||
| If the works are carried out beside the … | ||||||
| … crest of a slope with a gradient ≤ 30°, distance between excavation & the outer edge of crest ≥ height of slope; | … crest of a slope – (i) gradient ≤ 15°; (ii) height of slope ≤ 3 m; & (iii) distance between excavation & the outer edge of crest ≥ height of slope. | |||||
| … crest of a slope with a gradient > 30° - (i) height of slope ≤ 3 m; & (ii) distance between excavation & the outer edge of crest ≥ 1.5 times the height of slope; | ||||||
| … top of a retaining wall – (i) height of wall ≤ 3 m; & (ii) distance between excavation & the wall ≥ 1.5 times the height of wall. | ||||||
| Other considerations | • B(SSFPDWL)R 40 & 41 – Proper disposal of foul & surface water. • PNAP APP-103 – Not laying drainage on newly reclaimed land. Differentiation settlement for newly reclaimed land should be considered. • Associated excavation works may be MW item 1.12 or 2.11. • Agreement from the IO / co-owners of the common part should be sought. | |||||
3.4 Drying Rack
| MW items | 3.29 | 3.36 | 3.30 |
| Simple Comparison of Descriptions | Erection, alteration or removal … | Strengthening … | Removal … |
| unauthorized … | |||
| projecting from external wall … | |||
| No additional load to cantilevered slab; | Not DEW item 15 | ||
| Projects ≤ 750 mm; & | |||
| Highest point > 3 m from ground. | If highest point ≤ 3 m from ground, not project over any street / common part of the building. | ||
| Other considerations | •B(P)R 7(3) – No undesirable projection over a street. •B(P)R 30 – Natural lighting & ventilation not obstructed. •B(P)R 35A & PNAP APP-27 – Not positioning the drying rack directly above any aperture of gas water heater. | ||
3.5 Excavation Works & Spread Footing Associated with "Minor Works"
| MW items | 1.11 | 2.10 |
| Simple Comparison of Descriptions | Construction or alteration of spread footing associated with the carrying out of other minor works or designated exempted works … | |
| Involve excavation of depth | ||
| ≤ 3 m; | ≤ 1.5 m | |
| Overall gradient of area bounded by lines 10m away from the location of the footing in the downhill direction | ||
| ≤ 15° | ≤ 5° | |
| No retaining wall or terrace wall > 1.5 m, or below a line drawn down from the base of the footing that is 45° to the horizontal, within the area bounded by lines 10m away from the location of the footing in the downhill direction; | ||
| Allowable pressure imposed by the footing on the ground 100kPa or (if the footing is located below the ground water level) 50 kPa; | ||
| Other considerations | ‧ B(C)R Part XII, Concrete Code & PNAP APP-142–Design of concrete. ‧ Foundations Code s.4 & s.7.1.3 – General design requirements of shallow foundations & sampling & testing requirements of concrete & reinforcement. ‧ PNAP ADV-15 & PNRC 41–Control of the fixing of reinforcement. ‧ Associated excavation works may be MW item 1.12 or 2.11. | |
| Other reference not listed in TG on MW | ‧Guide to Trench Excavations (Shoring Support and Drainage Measures) and CS(S)R (Cap. 59I) 39(1) – lateral support for depth greater than 1.2m, ‧LMPO (CAP28) Part III – excavation permit in unleased land. ‧Excavation permit (XP) for street maintained by HyD ‧Guidelines for Excavation near Water Mains, ‧CoP for Avoiding Danger from Gas Pipes and GS(GS)R (CAP51B) s23A - Works in the vicinity of gas pipes ‧CoP on Working near Electricity Supply Lines and ESL(P)R (CAP406H) s10 - works in vicinity of electricity supply lines ‧PNAP APP-57 under B(A)R8(1)(bc) – for deeper than 4.5m and greater than 5m in length. | |
| MW items | 1.12 | 2.11 |
| Simple Comparison of Descriptions | Excavation works associated with the carrying out of any other minor works or designated exempted works … | |
| No excavation within “scheduled area” No. 1 or 3; & | ||
| Depth of excavation: | ||
| > 1.5 m & ≤3 m. | > 0.3 m & ≤1.5 m. | |
| Other considerations | ‧ PNAP APP-48 & Supervision Code – Provision of qualified supervision (PNAP APP-28 for supervision in the “scheduled areas”). ‧ Construction Site (Safety) Regulations 41 - Safe guarding the edges of excavation. ‧ No additional floor area will be resulted after the excavation work. ‧ The MOE, MOA & EVA not affected. | |
| Other reference not listed in TG on MW | ‧Guide to Trench Excavations (Shoring Support and Drainage Measures) and CS(S)R (Cap. 59I) 39(1) – lateral support for depth greater than 1.2m, ‧LMPO (CAP28) Part III – excavation permit in unleased land. ‧Excavation permit (XP) for street maintained by HyD ‧Guidelines for Excavation near Water Mains, ‧CoP for Avoiding Danger from Gas Pipes and GS(GS)R (CAP51B) s23A - Works in the vicinity of gas pipes ‧CoP on Working near Electricity Supply Lines and ESL(P)R (CAP406H) s10 - works in vicinity of electricity supply lines ‧PNAP APP-57 under B(A)R8(1)(bc) – for deeper than 4.5m and greater than 5m in length. | |
3.6 External Rendering, External Wall Tiles, Roof Tiles or Panel Fixed by Metal Dowels
| MW items | 1.31 | 2.33 |
| Simple Comparison of Descriptions | Erection, repair or removal of panel fixed by metal dowels & fixings onto a wall inside a building … | |
| Highest point of the panel from adjoining floor | ||
| > 10 m. | > 3 m & ≤ 10 m. | |
| Other considerations | Fire resistance of the wall not affected. | |
| MW items | 2.34 | 3.31 |
| Simple Comparison of Descriptions | Laying, repair or removal of external rendering, external wall tile or roof tile … | Erection, repair or removal of any cladding fixed to the external wall … any part of the cladding ≤ 6m from the adjoining ground or adjoining floor |
| For repair of any external rendering, highest point of the area to be repaired > 3m from the adjoining ground or adjoining floor; | ||
| Other than the repair of external rendering, highest point of the rendering or tile > 3m from the adjoining ground or adjoining floor; & | ||
| Other considerations | • PNAP APP-102 para. 5 & Guidelines for the Removal of Typical Unauthorized Building Works & General Maintenance of External Walls s.5 – General safety requirements. • Agreement from the IO / co-owners of the external wall / roof (if being common part). | |
| • B(C)R 48 – Making the roof weatherproof. • PNAP ADV-31 / PNRC 67 – Proper design & specification for external rendering / tiling works. | • B(C)R 39 & PNAP APP-16 – Proper specification of material, fixings, strength & durability for cladding. | |
3.7 Fence Wall or External Mesh Fence
| MW Items | 1.7 | 2.6 | 1.8 | 2.7 |
| Simple Comparison of Descriptions | Erection or alteration … | |||
| … solid fence wall … | … external mesh fence … | |||
| Erected on-grade; & | ||||
| Height >1.5m& ≤ 5m | Height ≤ 1.5m | Height >3m & ≤ 10m | Height ≤ 3m | |
| Other considerations | • B(P)R 30 – No obstruction to the natural lighting & ventilation • PNAP APP-103 – Not construct fence wall on newly reclaimed land. • PNAP ADV-22 – Control of the felling or transplanting of trees. • Associated excavation works & footing may be MW item 1.12 or 2.11 & 1.11 or 2.10. • The MOE, MOA & EVA not affected. | |||
| MW Items | 1.9 | 3.4 | 1.10 | 3.5 |
| Simple Comparison of Descriptions | Removal … | |||
| … solid fence wall … | … external mesh fence … | |||
| Erected on-grade; & | ||||
| Height >3m | Height>1.1m ≤ 3m | Height >5m | Height>3m & ≤5m | |
| Other considerations | Code of Practice for Demolition of Buildings 2004 – Provision of precautionary measures. | |||
3.8 Glass Reinforced Polyester (“GRP”) Water Tank
| MW Items | 2.3 | 2.4 |
| Simple Comparison of Descriptions | Replacement … GRP water tank on roof … | Removal … GRP water tank on roof … |
| in accordance with the original design … | N/A | |
| Water head of tank ≤ 2m; | ||
| Capacity of tank ≤ 9 m³; & | ||
| Distance from the edge of roof ≤ 1.5 m. | ||
| Other considerations | PNAP APP-100 – Structural design of the tank & the fixing arrangement. | |
3.9 Internal Staircase
| MW Items | 1.1 | 1.32 | 3.1 |
| Simple Comparison of Descriptions | Erection or alteration … | Removal … | Removal of the whole … |
| on the lowest storey … | |||
| internal staircase … not used as a MOE or MOA … | |||
| Not involve alteration of structural elements, except a simply supported beam that – (i) not of pre-stressed construction; & (ii) not used to support any column, flat slab or ribbed beam; & | |||
| No additional load to cantilevered slab. | Not MW item 3.1. | Height of staircase ≤ 1.5 m. | |
| Other considerations | • B(C)R 8 – Provision of protective barrier if level difference >600 mm is resulted after completion of works. | ||
| • B(C)R Part XII – Design of concrete. • B(C)R 90 & FRC Code para. 5, 6 & 10.2 – Compartment volume & fire resisting construction. • B(P)R 72, PNAP APP- 41 & BFA Manual Div. 7 & 8 – Persons with a disability to travel. • FRC Code para. 12 – Smoke barrier. • Associated formation of slab opening may be MW items 1.2 or 2.1. | • Demolition Code – Necessary provision of precautionary measures. • Not the access for maintenance to roof, flat roof or canopy, etc. | N/A | |
3.10. Metal Gate on Fence or at the Entrance of a Building
| MW Items | 1.16 | 2.16 | 3.13 |
| Simple Comparison of Descriptions | Erection, alternation or repair … | Erection, alternation, repair or removal … | |
| at a fence wall or at an entrance to a building … | |||
| No additional load to cantilevered slab; | |||
| Not involve alteration of other structural elements; | |||
| Height of gate ≤ 3.2 m; & | |||
| Weight of at least one leaf > 300 kg. | Weight of at least one leaf >200 kg; & Weight of each leaf ≤ 300kg; | Weight of each leaf ≤ 200 kg. Not DEW item 8 | |
| Other considerations | • B(P)R 15 – Not to open the gate over streets. • MOE Code para. 8.2, Table 2 & para. 16.4 – Provision of locking devices that can be readily open from inside without the use of key & control of the min. width of metal gate if the metal gate is fixed at the entrance of building as well as the exit of any required staircase. • PNAP APP-146 & PNRC 68 – Design & installation standards of metal gate. • The MOE, MOA & EVA not affected. • Shutter Code issued by EMSD should be complied with if the metal gates are electrically operated. • A Safety Guide on Gate Work issued by the Labour Department – Safety tips & key points to note on gate-related work. | ||
| MW Items | 1.40 | 2.40 | 3.33 |
| Simple Comparison of Descriptions | Removal … | ||
| at a fence wall or at an entrance to a building … | |||
| No additional load to cantilevered slab; | |||
| Not involve alteration of other structural elements; | |||
| Height of gate ≤ 3.2 m; & | |||
| Weight of at least one leaf > 300 kg. | Weight of at least one leaf >200 kg; & Weight of each leaf ≤ 300kg; | Weight of each leaf ≤ 200 kg. Not DEW item 8 | |
| Other considerations | Code of Practice for Demolition of Buildings 2004 – Necessary provision of precautionary measures. | ||
3.11 Non-load bearing External Reinforced Concrete (“RC”) / Block Wall
| MW Items | 1.15 | 2.13 | 2.15 |
| Simple Comparison of Descriptions | Erection, alteration or removal … | Repair … | |
| external RC wall (other than a load bearing wall) of a building … | |||
| No additional load to cantilevered slab; | |||
| Not involve alteration of other structural elements; & | |||
| Height of wall | |||
| > 1.1m & ≤ 3.5 m. | ≤ 1.1 m. | ≤ 3.5 m. | |
| Other considerations | • B(C)R 41 – Protection against penetration of moisture. • B(C)R Part XII – Design of concrete. • PNAP APP-24 para. 10 & PNRC 14 para. 9 – Not having any opening within 5m of the MTR vent shaft. • PNAP APP-86 – Design & construction of non-load bearing wall. • PNAP ADV-15 & PNRC 41 – Control of fixing of reinforcement. • B(DW)R10 – Not to overload the floor. • B(DW)R11 – Provision of precautionary measures from sudden collapse on cutting the steelwork. • B(P)R 3A & PNAP APP-110 – Provision of protective barrier to opening on external wall. • Demolition Code – Necessary provision of precautionary measures for removal. • FRC Code para. 7, 12.3, 11.7, 11.8, etc. – Fire resisting wall / spandrel. • Existing provision for the building under JPN 1 & 2 not contravened if green features are provided. • Agreement from the IO / co-owners of the external wall (if being common part) should be sought. | ||
| MW Items | 2.14 | 3.11 | 3.12 |
| Simple Comparison of Descriptions | Erection, alteration or removal … | Repair … | |
| external block wall (other than a load bearing wall) of a building … | |||
| No additional load to cantilevered slab; | |||
| Not involve alteration of any other structural elements; & | |||
| Height of wall | |||
| > 1.1m & ≤ 3.5 m. | ≤ 1.1 m. | ≤ 3.5 m. | |
| Other considerations | • B(C)R 41 – Protection against penetration of moisture. • PNAP APP-24 para. 10 & PNRC 14 para. 9 – Not having any opening within 5m of the MTR vent shaft. • PNAP APP-86 – Design & construction of non-loadbearing wall. • B(DW)R10 – Not to overload the floor. • B(P)R 3A & PNAP APP-110 – Provision of protective barrier to opening on external wall. • FRC Code para. 12.3 – Provision of spandrel, if applicable. • Existing provision for the building under JPN 1 & 2, if applicable, not contravened. • Demolition Code – Necessary provision of precautionary measures. Precautionary measures are required before the formation of opening in a block wall to avoid the collapse of block wall above the opening. Provision of lintel for the new opening is also required. | ||
3.12 Opening in Floor Slab
| MW Items | 1.2 | 2.1 |
| Simple Comparison of Descriptions | Formation of opening in a slab … | |
| No additional load to cantilevered slab; | ||
| Not involve alteration of structural elements, except a simply supported beam that – (i) not of pre-stressed construction; & (ii) not used to support any column, flat slab or ribbed beam. | ||
| Area of opening > 1 m² & ≤ 4.5 m². | Area of opening ≤ 1 m²; & | |
| N/A | Not DEW item 1 | |
| Other considerations | • B(DW)R10 – Not overload the floor. • B(DW)R11 – Provision of precautionary measures from sudden collapse on cutting the steelwork. • B(C)R 90 & FRC Code para. 5, 6 & 10.2 – Control of compartment volume & fire resisting construction. • FRC Code para. 12 – Provision of a 450 mm smoke barrier to surround the opening at the underside of the floor. • Usage of the slab opening e.g. for passage of building service, drainage, lift, staircase etc be clearly indicated on plan; • B(C)R 8 & B(P)R 3A – Level difference resulted after completion of works. • For forming openings to combine two adjoining residential units, JPN 1 & 2 should not be contravened if there are green features provided to the units. | |
| MW Items | 1.35 | 2.35 |
| Simple Comparison of Descriptions | Reinstatement … | |
| in accordance with the original design … | ||
| No additional load to cantilevered slab; | ||
| Not involve alteration of other structural elements; & | ||
| Area of opening > 1 m² & ≤ 4.5 m². | N/A | |
| N/A | Distance between the 2 farthest points within the area of opening > 150 mm. | |
| Other considerations | • B(C)R Part XII, Concrete Code & PNAP APP-142 – Design of concrete. • PNAP ADV-15 & PNRC 41 – Control of fixing of reinforcement. | |
3.13 Protective Barrier (other than on external RC or Block Wall)
| MW Items | 1.6 | 2.5 | 3.3 |
| Simple Comparison of Descriptions | Alteration or removal … | Repair of replacement | |
| Protective barrier (other than an external RC wall or block wall)… | |||
| N/A | In accordance with the original design… | ||
| Not result in any additional load to any cantilevered slab; & | |||
| N/A | Level on which the protective barrier is located >2m from its adjacent level. | Level on which the protective barrier is located & ≤2m from its adjacent level. | |
| Other considerations | • B(C)R 8 & PNAP APP-110 – Layout of protective barrier to the staircase & associated opening. • B(C)R 17 – Design of min. horizontal imposed loads on protective barrier. • B(P)R 3A & PNAP APP-110 – Layout of protective barrier to opening on external wall. • FRC Code para. 12.3 - Fire resisting spandrel. • Existing provision for the building under JPN 1 & 2, if applicable, not contravened. | N/A | |
3.14 Removal of Architectural Projection, Canopy, Supporting Frame for an Air-conditioning Unit or any Associated Air Ducts, or Rack (other than a drying rack)
| MW Items | 2.31 | 3.26 |
| Simple Comparison of Descriptions | Removal ... projecting from external wall of a building … | |
| Projects > 750 mm; | Projects ≤ 750 mm; | |
| Not constructed of concrete; & | ||
| Not DEW item 13 or 14 | ||
| Other considerations | B(DW)R5 – Not having the electric cables or the apparatus remained electrically charge, if applicable. | |
3.15 Removal of Chimney
| MW Items | 1.37 | 2.37 |
| Simple Comparison of Descriptions | Removal ... attached to external wall … or on the roof of a building … | |
| Highest point ≤ 10m from the level of adjoining roof; & | Highest point ≤ 5m from the level of adjoining roof; & | |
| Not MW item 2.37 | Smallest cross-sectional dimension ≤ 500 mm. | |
| Other considerations | B(DW) R3 – Provision of precautionary measures. | |
3.16 Removal of Unauthorized Floor Slab or Unauthorized Structure
| MW Items | 1.30 | 2.32 |
| Simple Comparison of Descriptions | Removal … unauthorized structure (other than an architectural projection, canopy, frame or rack) … | |
| projecting > 2 m from the external wall; & | projecting ≤ 2 m from the external wall; & | |
| If the structure is fixed to a balcony or canopy that is a cantilevered slab, the span of balcony or canopy > 1 m. | If the structure is fixed to a balcony or canopy that is a cantilevered slab, the span of balcony or canopy ≤ 1m. | |
| Other considerations | • B(DW)R 10 – Not to overload the floor. • B(DW)R 11 – Provision of precautionary measures from sudden collapse on cutting the steelwork. • PNAP APP-21 – Provision of measures for public safety when carrying out demolition works. • Other legislations affecting the associated provision of protective barrier / external wall should be complied with. • Guidelines for the Removal of Typical Unauthorized Building Works & General Maintenance of External Walls s.4 – General safety requirements. | |
| MW Items | 1.38 | 2.39 | 3.32 |
| Simple Comparison of Descriptions | Removal … unauthorized structure | Removal … unauthorized single storey structure | |
| located on-grade or on a slab (other than a cantilevered slab); | |||
| No alteration of structural elements; | |||
| Height of structure | |||
| > 5 m & ≤ 10 m; | ≤ 5 m; | ≤ 2.5 m; | |
| Not a flat slab, pre-stressed concrete construction, transfer girder, hanger, cantilevered structure with a span > 1.2 m or earth retaining structure; | |||
| Span of structural element of the structure | |||
| ≤ 6 m; & | ≤ 4.5 m; | ||
| Structure ≤ 2 storeys.. | Not MW item 3.32. | Roofed over area ≤ 20 m²; & | |
| If on roof, any part of the structure > 1.5 m from the edge of roof. | |||
| Other considerations | • B(DW)R 10 – Not to overload the floor. • B(DW)R 11 – Provision of precautionary measures from sudden collapse on cutting the steelwork. • PNAP APP-21 – Provision of measures for public safety when carrying out demolition works. • Other legislations affecting the associated provision of protective barrier / external wall should be complied with. • Guidelines for the Removal of Typical Unauthorized Building Works & General Maintenance of External Walls s.4 – General safety requirements. | ||
| MW Items | 1.39 | 2.38 |
| Simple Comparison of Descriptions | Removal … unauthorized floor slab. | Removal … unauthorized structure hung underneath the soffit of a balcony or canopy (other than a cantilevered slab) or fixed to a balcony or canopy (other than a cantilevered slab). |
| Other considerations | • B(DW)R 10 – Not to overload the floor. • B(DW)R 11 – Provision of precautionary measures from sudden collapse on cutting the steelwork. • PNAP APP-21 – Provision of measures for public safety when carrying out demolition works. • Other legislations affecting the associated provision of protective barrier / external wall should be complied with. • Guidelines for the Removal of Typical Unauthorized Building Works & General Maintenance of External Walls s.4 – General safety requirements. | |
3.17 Repair of Structural Elements
| MW Items | 1.17 | 2.17 |
| Simple Comparison of Descriptions | Repair … structural elements (including any column, shear wall, flat slab, cantilevered slab, ribbed slab, waffle slab, pre-stressed beam, post-tensioned beam, cantilevered beam, transfer plate, transfer beam or earth retaining structure) … | Repair … slab or beam (other than a flat slab, cantilevered slab, ribbed slab, waffle slab, pre-stressed beam, post-tensioned beam, cantilevered beam, transfer plate or transfer beam) ... |
| in accordance with the original design … not result in any additional load to any cantilevered slab. | ||
| Other considerations | • B(C)R Part XII – Design of concrete. • B(DW)R 11 – Provision of precautionary measures from sudden collapse on cutting the steelwork. • PNAP ADV-15 & PNRC 41 – Control of the fixing of reinforcement. • PNAP APP-102 para. 5 & Guidelines for the Removal of Typical Unauthorized Building Works & General Maintenance of External Walls s.5 – General safety requirements. | |
3.18 Signboard
| MW Items | 1.20 | 2.18 | 3.16 |
| Simple Comparison of Descriptions | Erection or alteration … projecting signboard … | Erection, alteration or removal … projecting signboard (including replacement of display surface …) | |
| Not consist of stone; | |||
| No additional load to cantilevered slab; | |||
| Not involve alteration of structural elements; | |||
| Display area > 10m² & ≤ 20m²; | Display area ≤ 10m²; | Display area ≤ 1m²; | |
| Projects ≤ 4.2 m; & | Projects ≤ 1 m; | ||
| Thickness ≤ 600 mm. | Thickness ≤ 300 mm; & | ||
| N/A | Not MW item 3.16. | Any part of signboard ≤ 6 m from ground. | |
| Other considerations | • BO s31(1)(aa) & PNAP APP-126 Appendix G – Control of the projections of signboard on or over streets. • PNAP APP-126 Appendices C-F, H & I – Design & construction requirements of signboard given by the BA, FSD, TD & HyD, etc. • B(P)R 30 – Natural lighting & ventilation, prescribed plane for prescribed window for adjacent building on the same site, if any, not obstructed. • PNAP APP -24 Appendix A s.C.1 & PNRC 14 – No signboard projected within 6 m of the MTR tracks. • Agreement from the IO / co-owners of the external wall / roof (if being common part) should be sought. | ||
| Harbour Planning Guidelines for Victoria Harbour and its Harbour-front Areas issued by the Harbourt-front Enhancement Committee – Harbour planning principles. | In case of signboard projecting ≤ 600 mm over a footpath, any part of the signboard should have a clearance ≥ 2.5 m from ground. | ||
| MW Items | 1.21 | 2.20 | 2.22 |
| Simple Comparison of Descriptions | Erection or alteration … signboard on roof … | Erection or alteration … signboard on or hung underneath the soffit of a balcony or canopy (other than a cantilevered slab) … | Erection or alteration of any outdoor signboard together with a spread footing … |
| Not consist of stone; | N/A | ||
| Display area ≤ 20 m²; | Display area ≤ 2 m²; | Display area ≤ 1 m²; | |
| No part projects beyond the external wall of the building; | No part projects beyond the balcony or canopy; | ||
| Thickness ≤ 600 mm; | Thickness ≤ 100 mm; & | Thickness ≤ 300 mm | |
| Any part of signboard ≤ 6 m from the level of roof; | Any part of signboard ≤ 3 m from ground; | ||
| No additional load to cantilevered slab; & Not involve alteration of structural elements | Height of signboard ≤ 600 mm | Involve depth of excavation ≤ 500 mm for construction of the footing; & Not involve excavation within “scheduled areas” no. 1 or 3. | |
| Other considerations | • PNAP APP-126 Appendices C-F, H & I – Design & construction requirements of signboard given by the BA, FSD, TD & HyD, etc. • Agreement from the IO / co-owners of the external wall / roof / the ground (if being common part) should be sought. | ||
| B(P)R 30 – Natural lighting & ventilation not obstructed. | Associated excavation works & footing may be MW item 1.12 or 2.11 & 1.11 or 2.10. | ||
| • Hong Kong Airport (Control of Obstructions) Ordinance & PNAP APP-32 – Not exceeding the airport height restrictions. • If roof is a refuge floor, complied with respective requirements under MOE Code. • Drainage on roof not obstructed. • Existing water proofing of the roof not damaged. • Harbour Planning Guidelines for Victoria Harbour and its Harbourfront Areas issued by the Harbourtfront Enhancement Committee – Harbour planning principles. | BO s31(1)(aa) & PNAP APP-126 Appendix G – Control of the projections of signboard on or over streets. | ||
| MW Items | 1.22 | 2.19 | 3.17 |
| Simple Comparison of Descriptions | Erection or alteration … wall signboard … | Erection, alteration or removal … wall signboard (including replacement of display surface …) | |
| No additional load to cantilevered slab; | |||
| Not involve alteration of structural elements; | |||
| With LED, display area | N/A | ||
| > 5 m² & ≤ 20 m²; | ≤ 5 m2; | ||
| Without LED, display area | |||
| >10 m² & ≤ 40 m²; & | ≤ 10 m²; & | ≤ 5 m²; | |
| Not consist of stone if any part of signboard > 6m²from ground. | Any part of signboard ≤ 6 m from ground; & | ||
| N/A | Not MW item 3.17 or DEW item 10 | Not DEW item 10 or 11 | |
| Other considerations | • BO s31(1)(aa) & PNAP APP-126 Appendix G – Control of the projections of signboard on or over streets. • PNAP APP-126 Appendices C-F, H & I – Design & construction requirements of signboard given by the BA, FSD, TD & HyD, etc. • B(P)R 30 – Natural lighting & ventilation. • Agreement from the IO / co-owners of the external wall / roof (if being common part) should be sought. • If signboard projecting ≤ 600mm over a footpath, clearance ≥ 2.5 m from ground. • Wall signboards at overhead of shopfront should have a clearance ≥ 2.5 m from ground; and should be structurally independent without supporting any roller shutter, air-conditioning unit or being used for storage. • Harbour Planning Guidelines for Victoria Harbour and its Harbour-front Areas issued by the Harbourt-front Enhancement Committee – Harbour planning principles. | ||
| MW Items | 1.23 | 2.21 | 2.23 |
| Simple Comparison of Descriptions | Erection or alteration … outdoor signboard fixed on-grade (other than the construction of a spread footing) … | Replacement of display surface of any signboard of MW item 1.20, 1.21, 1.22, 1.23, 2.18, 2.19, 2.20, 2.21 or 2.22. | |
| Display area ≤20m²; | Display area ≤10m²; | ||
| Thickness ≤ 600 mm; & | |||
| Any part of signboard ≤ 6 m from ground. | Any part of signboard ≤ 2 m from ground. | ||
| Not MW item 2.21 | N/A | ||
| Other considerations | • PNAP APP-126 Appendices C-F, H & I – Design & construction requirements of signboard given by the BA, FSD, TD & HyD, etc. • Associated excavation works & footing may be MW item 1.12 or 2.11 & 1.11 or 2.10. • Agreement from the IO / co-owners of the external wall / roof (if being common part) should be sought. | ||
| •Harbour Planning Guidelines for Victoria Harbour and its Harbour-front Areas issued by the Harbourt-front Enhancement Committee – Harbour planning principles. | N/A | ||
| MW Items | 1.24 | 2.24 | 3.18 |
| Simple Comparison of Descriptions | Removal of any signboard (other than removal of spread footing of any outdoor signboard) other than MW item 2.24, 2.25, 2.26, 2.27, 3.16, 3.17, 3.18, 3.19, 3.20, 3.21 or 3.22 or DEW item 11 | Removal … projecting signboard | |
| Display area ≤20m²; | Display area ≤2m²; | ||
| Not MW item 3.18. | Projects ≤ 2 m; & | ||
| Any part of signboard ≤ 6 m from ground. | |||
| Other considerations | B(DW)R5 – Not having the electric cables or the apparatus remained electrically charge. | ||
| MW Items | 2.25 | 3.19 | 3.22 |
| Simple Comparison of Descriptions | Removal … signboard on the roof …, or … outdoor signboard … on-grade (other than removal of the spread footing of outdoor signboard), … | Removal … signboard on roof … | Removal … outdoor signboard fixed on-grade (other than removal of the spread footing of any outdoor signboard) … |
| Display area | |||
| ≤ 20 m²; & | ≤ 5 m²; | ≤ 1 m²; & | |
| Not MW item 3.19 or 3.22. | Height of signboard ≤ 2 m; & | ||
| Any part of signboard | |||
| > 1.5 m from the edge of roof. | ≤ 3 m from ground. | ||
| Other considerations | B(DW)R5 – Not having the electric cables or the apparatus remained electrically charge. | ||
| MW Items | 2.26 | 3.20 |
| Simple Comparison of Descriptions | Removal … wall signboard … | |
| With LED, display area ≤ 20m²; | N/A | |
| Without LED, display area | ||
| ≤ 40 m²; & | ≤ 10 m²; | |
| N/A | Any part of signboard ≤ 6m from²ground; & | |
| Not MW item 3.20 or DEW item 11 | Not DEW item 11 | |
| Other considerations | B(DW)R5 – Not having the electric cables or the apparatus remained electrically charge, if applicable. | |
| MW Items | 2.27 | 3.21 |
| Simple Comparison of Descriptions | Removal … signboard located on or hung underneath the soffit of a balcony or canopy (other than a cantilevered slab) … | |
| Not MW item 3.21. | If on balcony / canopy, display area ≤ 5 m²; | |
| If hung underneath …, display area ≤ 2 m²; & | ||
| Height of signboard ≤ 1 m. | ||
| Other considerations | B(DW)R5 –Not having the electric cables or the apparatus remained electrically charge, if applicable. | |
3.19 Supporting Frame / Structure for Air-conditioner & Water Cooling Tower
| MW Items | 1.5 | 2.2 | 3.2 |
| Simple Comparison of Descriptions | Removal ... | ||
| on a cantilevered slab with a span of > 1 m. | on-grade / on a slab; | ||
| N/A | (if cantilevered slab, span ≤ 1 m); & | other than a cantilevered slab; | |
| Not MW item 3.2. | Height of structure > 1 m & ≤ 2 m; & | ||
| If on roof – (i) > 1.5 m from edge of roof; or (ii) with protective barrier ≥ 1.1 m high at the roof edge. | |||
| Other considerations | • B(DW)R5 – Not having the electric cables or the apparatus remained electrically charge. • Report to the EPD if the cooling tower contains asbestos & will be demolished on site. The works must be conducted by registered qualified personnel under the supervision of registered consultant. See 10.6.4 for reference of the standards & guidelines on the handling, transportation & disposal of asbestos containing material. | ||
| MW Items | 1.28 | 3.27 | 3.35 |
| Simple Comparison of Descriptions | Erection, alteration or removal … | Strengthening … | |
| … unauthorized … | |||
| supporting frame for A/C unit or any associated air ducts projecting from external wall ... | |||
| No additional load to cantilevered slab; | |||
| Projects ≤ 750 mm; | Projects ≤ 600 mm; | ||
| Highest point of frame > 3 m from ground; | If highest point of frame ≤ 3 m from ground, not project over any street / common part of the building; & | ||
| Designed for an A/C unit | |||
| > 100 kg; & | ≤ 100 kg. | ||
| Not MW item 3.27. | N/A | ||
| Other considerations | • B(P)R 7(3) – Not making undesirable projection. • B(P)R 30 & 31 – Natural lighting & ventilation. • PNAP APP-112 – Proper disposal system for condensation. • Agreement from the IO / co-owners of the common area should be sought for erection of metal frame. • B(DW)R5 – Not having the electric cables or the apparatus remained electrically charge before alteration or removal. • Report to the EPD if the cooling tower contains asbestos & will be demolished on site. The works must be conducted by registered qualified personnel under the supervision of registered consultant. See 10.6.4 for reference of the standards & guidelines on the handling, transportation & disposal of asbestos containing material. | ||
| MW Items | 1.29 | 3.28 | 3.34 |
| Simple Comparison of Descriptions | Erection or alteration … | Erection, alteration or removal … | Strengthening … |
| … unauthorized … | |||
| supporting structure for A/C unit, water cooling tower or any associated air ducts on-grade / on a slab (other than a cantilevered slab) … | |||
| Height of structure [1] 1.5m; & | N/A | ||
| Designed for an A/C unit / water cooling tower | |||
| > 150 kg. | ≤ 150 kg; & | ≤ 100 kg. | |
| N/A | Not DEW item 12 | N/A | |
| Other considerations | • B(P)R 30 & 31 – Natural lighting & ventilation. • If the structure is fixed on roof & the roof is designated as refuge floor, the respective requirements for refuge floor stipulated in the MOE Code complied with. • Drainage on roof not obstructed. • Existing water proofing of the roof not damaged. • PNAP APP-112 – Proper disposal system for condensation. • Agreement from the IO / co-owners of the common part should be sought for erection of structure. • B(DW)R 5 – Not having the electric cables or the apparatus remained electrically charge before alteration. • Report to the EPD if the cooling tower contains asbestos & will be demolished on site. The works must be conducted by registered qualified personnel under the supervision of registered consultant. See 10.6.4 for reference of the standards & guidelines on the handling, transportation & disposal of asbestos containing material. | ||
3.20 Supporting Structure for Antenna, Transceiver or Radio Base Station on Roof
| MW Items | 1.13 | 3.9 | 1.14 |
| Simple Comparison of Descriptions | Erection or alteration … | Erection, alteration or removal … | Erection or alteration … |
| supporting structure for an antenna or transceiver on the roof … | supporting structure for a radio base station solely for telecommunications services in the form of an equipment cabinet on the roof … | ||
| No additional load to cantilevered slab; | |||
| No part projects beyond the external wall of the building; & | Length of cabinet ≤ 1.5m; width of cabinet ≤ 1m; & height of cabinet ≤ 2.3m | ||
| No part projects beyond the external wall of the building; & | |||
| Designed for an antenna or transceiver | |||
| > 150 kg. | ≤ 150 kg. | ||
| Other considerations | • Hong Kong Airport (Control of Obstructions) Ordinance & PNAP APP-32 – Not exceeding the airport height restrictions. • B(DW)R 5 – Not having the electric cables or the apparatus remained electrically charge before alteration. • If the roof is designated as refuge floor, the respective requirements for refuge floor stipulated in the MOE Code complied with. • Prescribed plane for prescribed window for adjacent building on the same site, if any, not obstructed. • Drainage on roof not obstructed. • Agreement from the IO / co-owners of the roof (if being common part) should be sought. • Existing water proofing of the roof not damaged. • The antenna, transceiver and radio base station in the form of equipment cabinet of a size not larger than 1.5 m (L) × 1 m (W) × 2.3 m (H) are equipment only and not considered as minor works. Erection or alteration of radio base stations larger than 1.5 m (L) × 1 m (W) × 2.3 m (H) are building works requiring prior approval of plans and consent from the BA. • Guidance Note for Submission of Applications by Operators for the Installation of Radio Base Stations for Public Telecommunications Services in Buildings and on Rooftops issued by the OFTA. | ||
| MW Items | 2.12 | 3.8 | 3.10 |
| Simple Comparison of Descriptions | Removal … | Removal … | |
| radio base station for telecommunications services in the form of an enclosure or equipment cabinet together with its supporting structure located on the roof of a building … | supporting structure for an antenna or transceiver located on the roof of a building. | ||
| Length of station ≤ 4.5 m; | N/A | ||
| Width of station ≤ 4.5 m; | |||
| Height of station | |||
| ≤ 2.3 m; & | ≤ 2 m; | ||
| Not MW item 3.8. | Any part of the station > 1.5 m from the edge of roof; & | ||
| Not involve any concrete structural elements. | |||
| Other considerations | • B(DW)R 5 – Not having the electric cables or the apparatus remained electrically charge, if applicable. • The antenna, transceiver and radio base station in the form of equipment cabinet of a size not larger than 1.5 m (L) × 1 m (W) × 2.3 m (H) are equipment only and not considered as minor works. | ||
3.21 Supporting Structure for Photovoltaic System
| MW Items | 1.5 | 2.2 | 3.2 |
| Simple Comparison of Descriptions | Removal ... | ||
| on a cantilevered slab with a span of > 1 m. | on-grade / on a slab; | ||
| N/A | (if cantilevered slab, span ≤ 1 m); & | other than a cantilevered slab; | |
| Not MW item 3.2. | Height of structure > 1m & ≤ 2 m; & | ||
| If on roof – (i) > 1.5 m from edge of roof; or (ii) with protective barrier ≥ 1.1 m high at the roof edge. | |||
| Other considerations | • B(DW)R 5 – Not having the electric cables or the apparatus remained electrically charge. | ||
| MW Items | 1.19 | 3.15 |
| Simple Comparison of Descriptions | Erection or alteration … | Erection, alteration or removal … |
| on-grade / on a slab (other than a cantilevered slab) …; | ||
| Height of structure ≤ 1.5 m; & | ||
| Designed for ... system with | ||
| at least 1 module > 200 kg. | module each ≤ 200 kg; | |
| N/a | Not DEW item 12 | |
| Other considerations | • B(P)R 30 – Natural lighting & ventilation. • Hong Kong Airport (Control of Obstructions) Ordinance & PNAP APP-32 – Not exceeding the airport height restrictions. • B(DW)R 5 – Not having the electric cables or the apparatus remained electrically charge before alteration. • If the roof is designated as refuge floor, the respective requirements for refuge floor stipulated in the MOE Code complied with. • Drainage on roof not obstructed. • Agreement from the IO / co-owners of the roof (if being common part) should be sought. • Existing water proofing of the roof not damaged. | |
3.22 Supporting Structure for Solar Water Heating System
| MW Items | 1.5 | 2.2 | 3.2 |
| Simple Comparison of Descriptions | Removal ... | ||
| on a cantilevered slab with a span of > 1 m. | on-grade / on a slab; | ||
| N/A | (if cantilevered slab, span ≤ 1 m); & | other than a cantilevered slab; | |
| Not MW item 3.2. | Height of structure > 1m & ≤ 2 m; & | ||
| If on roof – (i) > 1.5 m from edge of roof; or (ii) with protective barrier ≥ 1.1 m high at the roof edge. | |||
| Other considerations | • B(DW)R 5 – Not having the electric cables or the apparatus remained electrically charge. | ||
| MW Items | 1.18 | 3.14 |
| Simple Comparison of Descriptions | Erection or alteration … | Erection, alteration or removal … |
| on-grade / on a slab (other than a cantilevered slab) …; | ||
| Height of structure ≤ 1.5 m; | ||
| Designed for ... system with | ||
| at least 1 thermal collector > 200 kg;& | thermal collector each ≤ 200 kg; | |
| If thermal collector & the water tank are integrated, structure … designed for a system with gross weight (when water tank is in full capacity) | ||
| > 100 kg/m2 of the ground / slab area. | ≤ 100 kg/m2 of the ground / slab area; & | |
| Not DEW item 12 | ||
| Other considerations | • B(P)R 30 – Natural lighting & ventilation. • Hong Kong Airport (Control of Obstructions) Ordinance & PNAP APP-32 – Not exceeding the airport height restrictions. • B(DW)R 5 – Not having the electric cables or the apparatus remained electrically charge before alteration. • If the roof is designated as refuge floor, the respective requirements for refuge floor stipulated in the MOE Code complied with. • Drainage on roof not obstructed. • Agreement from the IO / co-owners of the roof (if being common part) should be sought. • Existing water proofing of the roof not damaged. | |
3.23 Window or Window Wall
| MW Items | 2.8 | 3.6 |
| Simple Comparison of Descriptions | Construction, alteration or repair of window or window wall … | |
| No additional load to cantilevered slab; | ||
| Not involve alteration of structural elements, except a simply supported beam that – (i) not of pre-stressed construction; & (ii) not used to support any column, flat slab or ribbed beam; | ||
| Distance between the highest point of the window or window wall & the ground | ||
| > 3.5 m, span of structural element of the window or window wall ≤ 6 m; | If ≤ 3.5 m, span of structural element of the window or window wall ≤ 6 m; & | |
| If ≤ 100 m – (i) involve the main frame of the window or window wall; or (ii) involve the sub-frame of the window or window wall, & length of the sub-frame > 1.2m; & | If > 3.5 m & ≤ 100 m – (i) involve the sub-frame of the window or window wall only; & (ii) length of the sub-frame ≤ 1.2m. | |
| If > 100 m – (i) area of the external wall opening for the window or window wall ≤ 6 m2; & (ii) length or width (whichever is shorter) of the opening ≤1.8m. | N/A | |
| Other considerations | • B(C)R 90 & FRC Code para. 7 & 12.3 – Requirements of fire resisting construction. • B(P)R 29-33 – Natural lighting & ventilation. • Building (Energy Efficiency) Regulation 4, Code of Practice for Overall Thermal Transfer Value in Buildings 1995 & PNAP APP-67 – Energy efficiency in commercial building / hotel. • PNAP APP-24 para. 10 & PNRC 14 – No window opening within 5 m of the MTR vent shaft. • PNAP APP-37 – Guidelines on design, standards & installation of window system, quality of tempered glass & submission of compliance certificate or test report. • PNAP APP-116 & PNRC 47 – Guidelines on design & installation of aluminium window & fixing of hinges. • Requirements stipulated in B(P)R 3A complied with, if applicable. | |
| MW Items | 2.9 | 3.7 |
| Simple Comparison of Descriptions | Removal of any window or window wall … | |
| Not involve alteration of structural elements; | ||
| Height of the window or window wall ≤ 6 m; & | Highest point of the window or window wall ≤ 3.5 m from ground. | |
| Not MW item 3.7. | N/A | |
| Other considerations | •B(C)R 90 & FRC Code para. 7 & 12.3 – Requirements of fire resisting construction. •B(P)R 29-33 – Natural lighting and ventilation. Prescribed windows not removed. •Building (Energy Efficiency) Regulation 4, Code of Practice for Overall Thermal Transfer Value in Buildings 1995 & PNAP APP-67 – Energy efficiency in commercial building / hotel. • PNAP APP-24 para. 10 & PNRC 14 – No window opening within 5 m of the MTR vent shaft. • PNAP APP-37 – Guidelines on design, standards and installation of window system, quality of tempered glass and submission of compliance certificate or test report. • PNAP APP-116 & PNRC 47 – Guidelines on design and installation of aluminium window and fixing of hinges. • Requirements stipulated in B(P)R 3A complied with, if applicable. | |
4.0 Duly of PRP and PRC
4.1 Prescribed registered professional (B(MW)37, 42 & 45) for Class I MW
AP – Building plans; certain foundation plans, structural details or calculations
(a) height of the construction ≤ 10 m;
(b) span of structural element of the construction ≤ 6 m;
(c) structural elements are built of timber, masonry, steel, plain/reinforced concrete;
(d) spread footing construction with a ground bearing pressure ≤ 300 kPa; and
(e) no structural alteration to any existing load-bearing structural elements.
RSE – Foundation plans, structural details or calculations
RGE – Geotechnical plans, assessment, details, calculations or reports
4.2 Prescribed registered contractor (PRC)
n RGBC;
n RMWC(Co) & (Provisional)
n RMWC(Ind) registered for minor works items 3.25, 3.27 to 3.29 or 3.34 to 3.38
4.5.1 Duly of PRC
n complying to BO (BO9AA),
n preparing prescribed plans & details for Class II & III
n supervise (BO9AA(4)(a)&(6)(a) & B(MW)R43, 44),
n appoint TCP (B(MW)R45(1)&(2), 47),
n change/cessation of application (B(MW)R51, 52 & 48(4)),
n cease works with PBP (B(MW)R53(1)),
n provide information to BA (B(MW)56), keep record (B(MW)R43 for III, 57 for I &II)
n comply with the Ordinance and supervise when carrying out DEW and EBW
5.0 Exempted Building Works (“EBW”) (BO41(3))
n Government buildings or lands;
n No alternation;
n Building works not contravention of any regulations exempted 4, 9, 9AA, 14(1) and 21 if not involve structures and sewage discharge:
1) Building works (other than drainage works, ground investigation in the scheduled areas, site formation works or minor works)
2) Designated exempted works ("DEW" and B(MW)Sch2)
3) Drainage works (other than minor works)
6.0 Designated Exempted Works (“DEW”) (B(MW)R5, Schedule 2)
n 15 types see TG on MW Ch6
7.0 Inspection and certificate of “Prescribed building or building works (PB/BW)” specified in Schedule 3
n 4 type see TG on MW Ch7
n Statutory validation (B(MW)62(2)):
n For purpose of BO39C(2), an following person under B(MW)62(2) may be appointed to certify on inspection that the existing unauthorized structures meet the safety requirements for exist MW on 31 Dec 2010
(a) AP/RSE/RGE;
(b) RGBC;
(c) RMWC for -
(i) type A minor works under class I, class II or class III;
(ii) type E minor works under class I, class II or class III; or
(iii) item 3.25, 3.27, 3.28, 3.29, 3.34, 3.35, 3.36, 3.37 or 3.38 of class III minor works.
n Notice to BA within 14 days after inspection with form MW06, photographs & description showing the physical condition of PB / BW as inspected, to certify that the installations are structurally safe & comply to BO.
n Issue acknowledgement letter by BA
8.0 Other Legislations (TG on MW Ch10)
1) Allied Regulations of BO
n BO, design manuals, PNAP, PNRC & JPN
n B(C)R3 and APP-53 - The “Certificate of Accepted Building Materials and Products for Minor Works” and “Schedule of Building Materials and Products for Minor Works” should be submitted in accordance with APP-13 and PNRC25. (e.g. fire resisting product, glazing barrier, cast iron pipe and other)
2) New Territories Exempted Houses
MW control does not apply any building exempted under Buildings Ordinance (Application to the New Territories) Ordinance (Cap. 121) as specified in a “certificate of exemption” s7(1). Submission should be made to DLO.
3) Town Planning
OZP for controlling the use, density, viz plot ratio, site coverage, gross floor area and height of the development under the Town Planning Ordinance (Cap. 131).
4) Airport Height Restrictions
The Hong Kong Airport (Control of Obstructions) Ordinance (Cap. 301) also provides for controls of heights of buildings in the interest of the safety of aircraft.
5) Fire Safety
Obstruction and locking of MOE under Fire Services (Fire Hazard Abatement) Regulation (Cap. 95F) s14 and 15. When installation of metal gate at the entrance of building,
(a) any locking device proposed should be readily opened from the inside without the use of a key at all times; and
(b) if an electric locking device is installed, the device shall be released automatically upon power failure and be fitted with a power on / off switch for testing.
6) Environmental Protection
6.1 Noise Control Ordinance (Cap. 400) s6 to 8 and 8A control construction noise in designed area, 7pm to 7am and general holidays by Construction Noise Permits. Contractors may check the “Code of Practice on Good Management Practice to Prevent Violation of the Noise Control Ordinance (Cap. 400) (for Construction Industry)”
6.2 Waste Disposal Ordinance (Cap. 354) s16 and 16A provide for the control on illegal dumping of waste. Contractors should arrange for proper disposal of construction waste at the prescribed facilities as provided in WD(CDCW)R3.
6.3 PNAP ADV-19 for “Construction and Demolition Waste”
6.4 Asbestos control provisions in Part IX of the Air Pollution Control Ordinance (Cap. 311). Building works involving asbestos must be conducted only by registered qualified personnel. Relevant manuals published by EPD:-
(a) “Code of Practice on Asbestos Control - Asbestos Work Using Full Containment or Mini Containment Method”;
(b) “Code of Practice on Asbestos Control - Asbestos Work Using Glove bag Method”;
(c) “Code of Practice on Asbestos Control - Preparation of Asbestos Investigation Report, Asbestos Management Plan and Asbestos Abatement Plan”;
(d) “Code of Practice on Asbestos Control - Safe Handling of Low Risk Asbestos Containing Material”; and
(e) “Code of Practice on the Handling, Transportation and Disposal of Asbestos Waste”.
6.5 Dust mitigation measures complying with the Schedule of the Air Pollution Control (Construction Dust) Regulations (Cap. 311R) should be adopted to minimize the dust emission.
6.6 Legal controls also apply to sewerage connections by means of the Water Pollution Control Ordinance (Cap. 358).
7) Heritage Conservation
n Antiquities and Monuments Ordinance (Cap. 53) (“AMO”) s6 restricts the carrying out of building works in a declared monument or proposed monument.
n Although the graded buildings are not under statutory protection under the AMO, demolition works or building works such as alteration or renovation which may affect their heritage value are not encouraged by the Secretary for Development (DEVB TC(W) No. 6/2009).
8) Construction Workers Registration
Under the Construction Workers Registration Ordinance (Cap. 583) (“CWRO”), the works described in Part 1 of Schedule 1 may only be carried out by registered skilled workers, or by registered construction workers under the instruction and supervision of such registered skilled workers. Example,
(a) asbestos abatement
(b) concrete repair
(c) curtain wall installation
(d) demolition
(e) mechanical excavation
(f) structural steel welding
9) Construction Site Safety
l Green Card - under Factories and Industrial Undertaking Ordinance (Cap. 59) s6BA, workers should receive recognized safety training and hold a valid certificate
l Construction Sites (Safety) Regulations (Cap. 59I) (“CS(S)R”) s38A & 38AA – Contractor shall ensure safety of the construction site, especially when working at height and providing access to and egress from the work place.
l Precautionary Measures for Construction Sites PNAP APP-107.
l Adequate steps such as working platform should be provided for prevention of falls at height of not less than 2m under CS(S)R38B.
l Prevention of falls into the trench or down from more than 2m under CS(S)R40.
10) Prevention of Bribery
l Soliciting or accepting bribes and presents in any form is forbidden under Prevention of Bribery Ordinance (Cap. 201).
