part 3 general building requirements, control and regulation

114 Pages·2015·3.69 MB·English

by  Raquib Ahsan

PART 3
GENERAL
BUILDING
REQUIREMENTS,
CONTROL AND
REGULATION
PART 3

Pages
Chapter 1 GENERAL BUILDING REQUIREMENTS 3-1
Chapter 2 CLASSIFICATION OF BUILDINGS BASED ON OCCUPANCY 3-29
Chapter 3 CLASSIFICATION OF BUILDING CONSTRUCTION TYPE BASED ON 3-83
FIRE RESISTANCE
Chapter 4 ENERGY EFFICIENCY AND SUSTAINABILITY 3-95
Appendices 3-105
TABLE OF CONTENTS

PART 3 GENERAL BUILDING REQUIREMENTS, CONTROL AND REGULATION
Chapter 1 GENERAL BUILDING REQUIREMENTS
1.1 SCOPE 3-1
1.2 TERMINOLOGY 3-1
1.3 LAND USE CLASSIFICATION 3-5
1.4 OCCUPANCY AND CONSTRUCTION CLASSIFICATION OF BUILDINGS 3-5
1.5 REQUIREMENTS OF PLOTS 3-7
1.5.1 General Requirements 3-7
1.5.2 Clearance from Overhead Electric Lines 3-7
1.5.3 Road, Formation level and Plinth Levels 3-7
1.5.4 Boundary Wall 3-8
1.6 PLOT SIZES 3-8
1.7 MEANS OF ACCESS 3-8
1.7.1 Internal Access Road 3-8
1.7.2 Pedestrian Path or Walkway or Footpath 3-9
1.8 OPEN SPACES WITHIN A PLOT 3-9
1.9 GENERAL HEIGHT AND AREA LIMITATIONS 3-15
1.10 OFF STREET PARKING SPACES 3-17
1.11 STREET ENCROACHMENT 3-18
1.12 COMMUNITY OPEN SPACE AND AMENITIES 3-18
1.13 MINIMUM STANDARD OF A DWELLING 3-18
1.14 REQUIREMENTS OF PARTS OF BUILDINGS 3-18
1.14.1 Plinth and Formation Levels 3-18
1.14.2 Room Dimensions 3-18
1.14.3 Kitchen 3-19
1.14.4 Bathroom and Toilets 3-19
1.14.5 Stairways 3-20
1.14.6 Mezzanine Floor 3-21
1.14.7 Lofts 3-21
1.14.8 Cabins or Chambers 3-21
1.14.9 Store Room 3-21
1.14.10 Private Garage 3-21
1.14.11 Basement 3-21
1.14.12 Entrance to the Building 3-22
1.14.13 Roof Drainage 3-22

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1.14.14 Parapet 3-22
1.14.15 Septic Tank 3-22
1.15 LANDSCAPING 3-22
1.16 DAMP-PROOFING AND WATERPROOFING OF FLOORS AND WALLS 3-22
1.17 EXISTING BUILDINGS 3-23
1.18 BUILDINGS AND PLACES OF HISTORICAL OR ARCHITECTURAL VALUE 3-23
1.19 VENTILATION, LIGHTING AND SANITATION 3-23
1.20 AIR-CONDITIONING AND HEATING 3-24
1.21 PROVISION OF LIFTS AND ESCALATORS 3-24
1.22 SOUND INSULATION 3-25
1.23 THERMAL INSULATION 3-25
1.24 LIGHTNING PROTECTION OF BUILDINGS 3-25
1.25 RAT PROOFING AND TERMITE PROOFING OF BUILDINGS 3-25
1.26 REQUIREMENTS FOR BUILDINGS IN FLOOD PRONE AND COASTAL REGIONS OF BANGLADESH 3-25
1.26.1 Flood Prone Areas 3-25
1.26.2 Surge Prone Areas 3-26
1.27 REQUIREMENTS FOR BUILDINGS IN OTHER DISASTER PRONE AREAS 3-27
1.28 SPECIAL PROVISION FOR STORAGE OF DANGEROUS GOODS AND THEIR CLASSIFICATION 3-27
1.29 LIST OF RELATED APPENDICES 3-28
Chapter 2 CLASSIFICATION OF BUILDINGS BASED ON OCCUPANCY
2.1 OCCUPANCY CLASSIFICATION 3-29
2.2 CHANGE OF USE 3-35
2.3 MIXED OCCUPANCY 3-35
2.4 GENERAL REQUIREMENTS OF ALL OCCUPANCIES 3-36
2.4.1 Location on Property 3-36
2.4.2 Allowable Floor Areas 3-37
2.4.3 Permitted Types of Construction 3-37
2.4.4 General provision for High-Rise Buildings 3-38
2.4.5 Helipads 3-38
2.4.6 Universal Accessibility 3-39
2.5 REQUIREMENTS FOR OCCUPANCY A - RESIDENTIAL BUILDINGS 3-39
2.5.1 Construction, Height and Allowable Area 3-39
2.5.2 Location on Property 3-39
2.5.3 Access and Exit Facilities and Egress System 3-39
2.5.4 Lighting and Ventilation 3-39
2.5.5 Sanitation 3-39
2.5.6 Minimum Dimension of Habitable and Non-habitable Rooms 3-39

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2.5.7 Fire Detection, Alarm, Evacuation and Extinguishment 3-39
2.5.8 Shaft and Exit Enclosure 3-40
2.6 REQUIREMENTS FOR OCCUPANCY B - EDUCATIONAL BUILDINGS 3-40
2.6.1 Construction, Height and Allowable area 3-40
2.6.2 Location on Property 3-40
2.6.3 Access and Exit facilities and Egress System 3-40
2.6.4 Lighting, Ventilation and Sanitation 3-40
2.6.5 Minimum Dimensions of Class Rooms, Common Toilets and Staircases 3-40
2.6.6 Shaft and Exit Enclosure 3-40
2.6.7 Fire Detection, Alarm, Evacuation and Extinguishment System 3-40
2.7 REQUIREMENTS FOR OCCUPANCY C - INSTITUTIONAL BUILDINGS 3-41
2.7.1 Construction, Height and Allowable Area 3-41
2.7.2 Location on Property 3-41
2.7.3 Access and Exit Facilities and Egress System 3-41
2.7.4 Lighting, Ventilation and Sanitation 3-41
2.7.5 Shaft and Enclosure 3-41
2.7.6 Fire Detection, Alarm, Evacuation and Extinguishment System 3-41
2.8 REQUIREMENTS FOR OCCUPANCY D–HEALTH CARE FACILITIES 3-41
2.8.1 Construction, Height and Allowable Area 3-41
2.8.2 Location on Property 3-41
2.8.3 Access and Exit Facilities and Egress System 3-41
2.8.4 Lighting, Ventilation and Sanitation 3-41
2.8.5 Shaft and Enclosure 3-41
2.8.6 Fire Detection, Alarm, Evacuation and Extinguishment System 3-42
2.9 REQUIREMENTS FOR OCCUPANCY E–BUSINESS 3-42
2.9.1 Construction, Height and Allowable Area 3-42
2.9.2 Location on Property 3-42
2.9.3 Access and Exit Facilities and Egress System 3-42
2.9.4 Lighting, Ventilation and Sanitation 3-42
2.9.5 Shaft and Enclosure 3-42
2.9.6 Fire Detection, Alarm, Evacuation and Extinguishment System 3-42
2.10 REQUIREMENTS FOR OCCUPANCY F–MERCANTILE BUILDINGS 3-42
2.10.1 Construction, Height and Allowable Area 3-42
2.10.2 Location on Property 3-42
2.10.3 Access and Exit Facilities and Emergency Escapes 3-42
2.10.4 Lighting, Ventilation and Sanitation 3-42
2.10.5 Shaft and Enclosure 3-43

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2.10.6 Fire Detection, Alarm, Evacuation and Extinguishment System 3-43
2.10.7 Special Hazards 3-43
2.11 REQUIREMENTS FOR OCCUPANCY G–INDUSTRIAL BUILDINGS 3-43
2.11.1 Construction, Height and Allowable Area 3-43
2.11.2 Location on Property 3-43
2.11.3 Access and Exit Facilities and Egress System 3-43
2.11.4 Lighting, Ventilation and Sanitation 3-43
2.11.5 Shaft and Enclosure 3-43
2.11.6 Fire Detection, Alarm, Evacuation and Extinguishment System 3-44
2.11.7 Special Hazards 3-44
2.12 REQUIREMENTS FOR OCCUPANCY H–STORAGE BUILDINGS 3-44
2.12.1 Construction, Height and Allowable Area 3-44
2.12.2 Location on Property 3-44
2.12.3 Access and Exit Facilities and Egress System 3-44
2.12.4 Lighting, Ventilation and Sanitation 3-44
2.12.5 Shaft and Enclosure 3-44
2.12.6 Fire Detection, Alarm, Evacuation and Extinguishment System 3-44
2.12.7 Special Hazards 3-44
2.13 REQUIREMENTS FOR OCCUPANCY I–ASSEMBLY BUILDINGS 3-45
2.13.1 Construction, Height and Allowable Area 3-45
2.13.2 Location on Property 3-45
2.13.3 Access and Exit Facilities and Egress System 3-45
2.13.4 Lighting, Ventilation and Sanitation 3-45
2.13.5 Shaft and Enclosure 3-45
2.13.6 Fire Detection, Alarm, Evacuation and Extinguishment System 3-45
2.13.7 Motion Picture Projection Rooms 3-46
2.13.8 Sports Facilities 3-46
2.13.9 Amusement Building Fire protection System 3-47
2.14 REQUIREMENTS FOR OCCUPANCY J–HAZARDOUS BUILDINGS 3-47
2.14.1 General 3-47
2.14.2 Special Provisions 3-49
2.14.3 Construction, Height and Allowable Area 3-50
2.14.4 Location on Property 3-52
2.14.5 Access and Exit Facilities and Emergency Escapes 3-53
2.14.6 Lighting and Ventilation 3-53
2.14.7 Sanitation 3-53
2.14.8 Shaft and Exit Enclosures 3-53

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2.14.9 Fire detection, Alarm, Evacuation and Extinguishment system 3-53
2.14.10 Explosion Control 3-53
2.14.11 Special Hazard 3-54
2.15 REQUIREMENTS FOR OCCUPANCY K–GARAGE BUILDINGS 3-54
2.15.1 Construction, Height and Allowable Area 3-54
2.15.2 Location on Property 3-55
2.15.3 Access and Exit Facilities and Emergency Escapes 3-55
2.15.4 Lighting, Ventilation and Sanitation 3-55
2.15.5 Shaft and Enclosure 3-55
2.15.6 Fire Detection, Alarm, Evacuation and Extinguishment System 3-55
2.16 REQUIREMENTS FOR OCCUPANCY L – UTILITY BUILDINGS 3-55
2.16.1 Construction, Height and Allowable Area 3-55
2.16.2 Location on Property 3-55
2.16.3 Access and Exit Facilities and Egress System 3-55
2.16.4 Lighting, Ventilation and Sanitation 3-55
2.16.5 Shaft and Enclosure 3-55
2.16.6 Fire Detector, Alarm, Evacuation and Extinguishment System 3-56
2.16.7 Special Hazard 3-56
2.17 REQUIREMENTS FOR OCCUPANCY M – MISCELLANEOUS BUILDINGS 3-56
2.17.1 General 3-56
2.17.2 Location on Property 3-56
2.17.3 Access and Exit Facilities and Emergency Escapes 3-56
2.17.4 Lighting, Ventilation and Sanitation 3-56
2.17.5 Shaft and Exit Enclosures 3-56
2.17.6 Fire Detection, Alarm, Evacuation and Extinguishment System 3-56

Chapter 3 CLASSIFICATION OF BUILDING CONSTRUCTION TYPES BASED ON FIRE RESISTANCE
3.1 General 3-83
3.1.1 Classification by Type of Construction 3-83
3.1.2 Group I. Non-combustible Construction 3-84
3.1.3 Group II. Combustible Construction 3-84
3.1.4 Separated Occupancy and Construction 3-88
3.1.5 Fire Zones 3-88
3.1.6 Permissible Types of Construction for Various Occupancies 3-89
3.1.7 Exterior Walls 3-89
3.1.8 Basement Floor 3-89
3.1.9 Restricting Horizontal and Vertical Spread of Fire 3-89

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3.1.10 Exceptions to Fire Resistance Requirements 3-89
3.1.11 Shaft Enclosures 3-91
3.1.12 Expansion and Contraction Joints 3-91
3.1.13 Weather Protection 3-92
3.1.14 Members Carrying Walls 3-92
3.1.15 Parapets 3-92
3.1.16 Projections 3-92
3.1.17 Guards and Stoppers 3-92
3.1.18 Insulation 3-93
3.1.19 Atrium 3-93
3.1.20 Mezzanine Floors 3-94
Chapter 4 ENERGY EFFICIENCY AND SUSTAINABILITY
4.1 SCOPE 3-95
4.1.1 Rationale for Sustainable/Green Buildings 3-95
4.2 DEFINITION 3-95
4.3 SITE SUSTAINABILITY 3-96
4.3.1 Mandatory Unpaved Area 3-96
4.3.2 Site Drainage and Run-Off Coefficient 3-96
4.3.3 Vegetation Plan 3-96
4.3.4 Irrigation Plan 3-96
4.3.5 Rain Water Harvesting System 3-97
4.4 BUILDING ENVELOPE 3-97
4.4.1 Window to Wall Ratio 3-97
4.4.2 Window Openings 3-99
4.4.3 Shading 3-99
4.4.4 Roof insulation and Green Roofing System 3-101
4.5 ENERGY EFFICIENT BUILDING SYSTEMS 3-101
4.5.1 Day lighting and Supplementary Lighting System 3-101
4.5.2 Lighting Power Density 3-101
4.5.3 Occupancy Sensors 3-101
4.5.4 Ceiling/ Wall Mounted Fans 3-102
4.5.5 Lift and Escalator Efficiencies 3-102
4.5.6 Renewable Energy Options 3-103
4.5.7 Heating Ventilation and Air-conditioning (HVAC) system 3-103
4.6 INTERNAL WATER MANAGEMENT 3-103
4.6.1 Reuse of Grey Water 3-103
4.6.2 Efficient Fittings in Toilets 3-103

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4.6.3 Service Hot Water and Pumping 3-103
APPENDICES
Appendix A Planning and Development Control 3-105
Appendix B Guidelines for Minimum Standard Housing Development 3-111
Appendix C Special Requirements of Cluster Planning for Housing 3-121
Appendix D Universal Accessibility 3-125
Appendix E Building types, Development Rights and Buildings abutting property lines 3-155
Appendix F Road hierarchy, On-street and Off-street Parking 3-159

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