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As at Apr 2010

URBAN REDEVELOPMENT AUTHORITY




Contents




Cover Page

Contents
Preface
PURPOSE OF THIS HANDBOOK

Part 1  GROSS FLOOR AREA


1  Introduction


2  Objectives


3  Definition of Gross Floor Area


4  Basic information required for computing gross floor area
4.1 Site Area
4.2 Plot Ratio


5  Items counted as gross floor area
5.1 Airwells (in old developments)
5.2 ATM kiosk
5.3 Balconies
5.4 Bay Windows
5.5 Bicycle and motorcycle parks
5.6 Car parks
5.7 Catwalk
5.8 Floors
5.9 Guardhouse & sentry post
5.10 Household shelters
5.11 Lift Motor Room
5.12 Loading and unloading platforms
5.13 Outdoor refreshment areas (ORA)
5.14 Outdoor refreshment kiosk
5.15 Planter boxes located within a residential unit
5.16 Recessed windows (Reversed of bay window)
5.17 Refuse chambers
5.18 Staircases
5.19 Swimming Pools
5.20 Urban Verandahs (for Orchard Planning area)
5.21 Void deck of residential buildings
5.22 Walls and columns


6  Items partially counted as gross floor area
6.1 Communal landscaped areas on the 1st storey
6.2 Major public space
6.3 Secondary public space
6.4 Lift lobbies in car park floors
6.5 Lift shaft
6.6 Service ducts
6.7 Sky terraces


Items not counted as gross floor area
7.1 Aesthetic mouldings
7.2 AHU
7.3 Balancing tank
7.4 Basement diaphragm walls
7.5 Bin point
7.6(i) Cable chambers
7.6(ii) Catwalk not exceeding 1m wide
7.7 Car parks and car park floors
7.8 Curtain wall or cladding system
7.9 Driveways
7.10 Drop-off point
7.11 Entrance canopy/main entrance
7.12 Ledges
7.13 Letter boxes
7.14 Linkages
7.15 Loading & unloading bay
7.16 M&E spaces
7.17 Meter compartment
7.18 Non household shelters
7.19 Ornamental pond/Reflective pool
7.20 Pavilions
7.21 Perforated structures
7.22 Planter boxes (within non-residential developments, or within communal areas of residential developments)
7.23 Private enclosed space
7.24 Pump rooms with less than 1.5m headroom
7.25 Rainwater holding tanks
7.26 Racking system
7.27 Refuse chute
7.28 Roof covers to screen roof top services
7.29 Roof eaves & sun shading devices
7.30 Roof terraces
7.31 Shadow areas
7.32 Staircases
7.33 Structural protrusion from building wall line
7.34 Unroofed staircases to ESS
7.35 Metal ceiling grids within indoor performance venues


Part 2  SITE COVERAGE & COMMUNAL OPEN SPACE (COS)
8.0 Objective of Site Coverage and Communal Open Space (COS)
8.1 What is site coverage?
8.2 Site coverage control for residential and non-residential development:
8.3 Items counted as site coverage
9.0 Communal Open Space (COS)
9.1 What is communal open space (COS)
9.2 The Communal Open Space requirement is:
9.3 Items counted as Communal Open Space.
9.4 Items not counted as Communal Open Space.


Part 3  Apportionment of floor areas in mixed developments


Part 4  ITEMS AT A GLANCE
Items at a glance on Gross Floor Area (GFA)
Items at a glance on Site Coverage & Communal Open Space

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