Code on Accessibility in the Built Environment 2025 – Singapore BCA Regulatory Standards
The Code on Accessibility in the Built Environment 2025 is a regulatory document issued by the Building and Construction Authority (BCA) of Singapore. It establishes the minimum design and construction requirements for accessible and inclusive buildings under the framework of the Building Control Regulations. This edition, which includes amendments up to version 1.1 dated 1 March 2026, serves as a deemed-to-satisfy technical standard for compliance with national building laws. The Code is periodically reviewed by the Code Review Committee to address demographic trends and community needs.
The scope of the document encompasses regulatory domains including horizontal and vertical circulation, sanitary provisions, family-friendly facilities, and specific requirements for residential and specialized developments. It provides detailed technical specifications through nine chapters, including Chapter 1: Accessibility in the Built Environment, Chapter 5: Sanitary Provisions, and Chapter 8: Signage and Wayfinding. The Code defines critical terminology such as accessible route, tactile ground surface indicator (TGSI), and person with ambulant mobility impairment. It governs building types ranging from shopping centres and hospitals to transport terminals and residential developments.
Technical details are supported by comprehensive tables and figures, such as Table 1: Provision of Key Facilities and Accessible Features and Table 5: Gradient and Length of Ramps. The requirements are based on anthropometric data for wheelchair users and other mobility aid users, specifying clearances and reach ranges necessary for independent building use. This structured framework provides professionals with measurable criteria for implementing Universal Design principles from the onset of any new building or alteration project.
Provisions and Scope of Accessibility
The Code applies to all building types except for landed dwelling-houses. It mandates that persons with disabilities, the elderly, and families with young children must be able to gain access to buildings and use their facilities.
- Additions and Alteration Works: Provisions apply to all new areas and existing areas with addition and alteration works requiring plan submission to the Commissioner of Building Control.
- Interconnectivity: Buildings must provide barrier-free connectivity to adjacent infrastructure, such as pedestrian footpaths and commuter facilities.
- Exemptions: Specific areas are exempt due to health and safety risks, including Loading docks, Plant rooms, Machinery spaces, and production areas in industrial buildings dealing with hazardous materials.
Horizontal and Vertical Circulation
Circulation requirements ensure safe and unimpeded movement through a continuous path of travel free from barriers like steps or turnstiles.
- Accessible Route Widths: Primary routes in residential or office buildings require a minimum width of 1500 mm, while other uses may require 1800 mm as per Table 3.
- Ramp Gradients: For changes in level exceeding 175 mm, the gradient must not be steeper than 1:12. Ramps must have level landings of at least 1500 mm depth at the top and bottom.
- Passenger Lifts: At least one lift must be designated for wheelchair users, featuring a clear door opening of at least 900 mm and internal car dimensions of 1200 mm by 1500 mm.
- Headroom: A minimum clear headroom of 2000 mm is required in all pedestrian areas including walkways and corridors.
Sanitary and Family-Friendly Provisions
Accessible washrooms and specialized family facilities are required based on building type and floor area thresholds.
- Accessible Individual Washrooms: Must have clear internal dimensions of at least 1750 mm by 1750 mm and be equipped with an emergency assistance alarm system.
- Lactation Rooms: Mandatory in offices and shopping centres with a GFA of 5000 m2 or more. These must be private, lockable spaces of at least 1200 mm by 1500 mm.
- Family Car Parking: Shopping centres over 10,000 m2 and transport stations must provide at least one family lot measuring 4800 mm by 3600 mm.
- Child-friendly Facilities: Includes child-sized wash basins (max height 550 mm) and water closets (seat height 250 mm to 350 mm).
Signage, Wayfinding, and Building Components
Clear visual and tactile identification is required to inform all users of accessible facilities and potential hazards.
- International Symbol of Access: Must feature a white symbolised figure on a blue background, be at least 60 mm in size, and face to the right.
- Tactile and Braille: Required for signs identifying toilets and lift buttons. Tactile characters must have a raised relief of at least 1 mm and be between 16 mm and 50 mm high.
- Hearing Enhancement Systems: Mandatory in rooms over 75 m2 used for conferences or meetings and at main public information counters.
- Warning TGSI: Must comprise truncated domes with a base diameter of 35 mm and be provided at the top, bottom, and intermediate landings of stairs.
Frequently Asked Questions
What is the minimum internal size for a lift car designated for wheelchair users?
The minimum internal lift car size must be 1200 mm wide by 1500 mm deep.
When is an emergency assistance alarm system required in a washroom?
It is required in accessible individual washrooms, larger accessible individual washrooms, and accessible changing rooms, activated by a waterproof push-button or pull-cord.
What is the maximum allowed gradient for an accessible ramp?
The gradient of a ramp must not be steeper than 1:12 for a vertical rise exceeding 175 mm.
What are the dimensions for an accessible individual washroom?
The minimum clear internal dimensions must be at least 1750 mm by 1750 mm.
What is the required height for mounting tactile and Braille signs?
Signs must be mounted at a height between 1200 mm and 1500 mm from the floor level to the centreline of the sign.
Are lactation rooms required in office buildings?
Yes, office buildings and business parks with a gross floor area of 5000 m2 or more must provide at least one lactation room.
What is the minimum clear opening width required for a doorway?
The clear opening of doorways must be at least 850 mm when the door is opened at 90 degrees.
What type of floor surface is required for accessible routes?
Floor surfaces must be stable, firm, level, and slip-resistant, as defined by SS 485 standards.
