JTC Building Design Requirements (BDR) Version 6.0 – Singapore Industrial Standards
The JTC Building Design Requirements (BDR) Version 6.0, edited in November 2025, is the mandatory design manual issued by JTC for all new-built industrial building projects in Singapore. This document serves as a regulatory standard for the project team, ensuring consistent quality and standardisation across JTC industrial facilities. It is designed to be read in conjunction with prevailing authorities' codes, such as those from the Building and Construction Authority (BCA), Singapore Civil Defence Force (SCDF), and Public Utilities Board (PUB). The BDR acts as a definitive guide for consultants throughout the project lifecycle, from inception to the final submission of as-built drawings.
The manual is structured into three primary disciplinary volumes: Architecture & Operations, Civil & Structural (C&S), and Mechanical & Electrical (M&E). It governs a wide array of regulatory domains including Industrial Building Design, Landscape Provisions, Foundation Design, Structural Materials, and Building Management Systems (BMS). The scope encompasses specific project categories such as Flatted Factories, Ramp-up Factories, and specialized developments within the Punggol Digital District (PDD), Jurong Innovation District (JID), and Seletar Aerospace Park (SAP). Detailed appendices provide templates for M&E Design Reports, Room Data Sheets, and the BDR Deviations List for formalized waiver procedures.
The following sections detail the technical specifications and procedural workflows required to achieve JTC's objectives for biophilic working environments and sustainable infrastructure. This include protocols for mandatory internal design review sessions and specific performance targets for Green Mark Platinum Super Low Energy (SLE) status.
Architectural Design and Tenant Unit Requirements
JTC BDR prescribes exact spatial and functional parameters for industrial units to ensure operational efficiency and pedestrian safety. Key requirements for tenant units include:
- Clear Ceiling Height: 4–6m for Flatted Factory and 6–9m for Ramp-up Factory units.
- Goods Movement: Minimum clear width of 2.0m for Pallet Movers, 4.0m for Forklifts, and 5.5m for AGUs shared with personnel.
- Floor Finish: Minimum 20mm thick cement screed unless a raised floor is specified.
- Access Gates: Upper floors requiring hoisting must have access gates of minimum 2.5m width equipped with safety hooks and lifelines.
- Amenities: Provision of FCC / SCC / BMS rooms, Workmen Rest Areas (minimum 20m² or 4m² per worker), and Nursing Rooms for Type A buildings (minimum 16m²).
Civil and Structural Engineering Standards
The C&S section focuses on building stability, foundation efficiency, and the use of sustainable materials in construction. Consultants must adhere to the following:
- Ground Investigation: Maximum spacing between boreholes (BH) must not exceed 60m, with specific requirements for ERSS and slope designs.
- Pile Utilisation: A minimum 85% pile utilisation ratio is required for the main building to achieve standardized substructure design.
- Structural Loading: Minimum variable loads are specified by activity, such as 15.0 kN/m² for Loading Areas and 7.5 kN/m² for Production Floors.
- Sustainable Materials: Mandatory use of Green Concrete (3-Ticks certified) for 100% of applicable superstructural concrete and 20% replacement of coarse aggregates with Crushed Concrete Aggregate (CCA).
- Vibration Control: Design must meet specific VC-B to VC-D requirements for semi-conductor industrial uses and ISO Standards for offices and production areas.
Mechanical and Electrical (M&E) Provisions
Mechanical and Electrical systems must prioritize maintainability and energy efficiency, often exceeding standard BCA requirements.
- Chilled Water Distribution: Leaving chilled water temperature must be 8.5°C or higher to meet Green Mark efficiency targets.
- Solar Readiness: All JTC buildings must provide solar-ready roofs with upfront provision of electrical infrastructure for future PV deployment.
- BMS Requirements: A Cloud-based Building Management System is mandatory, capable of 10-year data retention and integration with the Open Digital Platform (ODP).
- Electrical Safety: No wet services are permitted above electrical switchboards or major electrical panels. All common area control panels must be mounted no higher than 2.1m AFFL.
- Water Efficiency: Premises with annual consumption exceeding 36,000 m³ must adopt the SS ISO 46001:2019 Water Efficiency Management System.
Sustainability and Landscape Requirements
Sustainability goals are integrated via rigorous environmental simulation and specific biophilic targets for green cover.
- Green Cover Target: Defined as the total landscaped area as seen from a satellite, expressed as a percentage of the total site area.
- Wind-Driven Rain (WDR): Mandatory WDR simulations must assess rain penetration risks, particularly for Naturally Ventilated (NV) corridors and lift lobbies.
- Natural Ventilation: CFD wind flow studies are required at the Prelim Design (PDR) stage to assess pedestrian comfort and ventilation rates in tenant factory units.
- Green Walls: Maximum height is capped at 4m from slab level to facilitate ladder-based maintenance without specialized equipment (MEWP).
Design Review and Deviation Protocol
All JTC projects must undergo a structured review process to ensure compliance before construction begins. The workflow involves two critical sessions:
- Prelim Design Review (PDR): Conducted towards the end of the preliminary design stage.
- Detailed Design Review (DDR): Conducted at the 50% mark of the detailed design stage.
- Waiver Process: Any non-compliance with the BDR must be documented in the BDR Deviations List and presented to JTC Senior Management for approval.
- Factory Acceptance Tests (FAT): Mandatory witnessing is required for major equipment including HT Switchgear, Transformers, and Chillers.
Frequently Asked Questions
What is the minimum clear ceiling height for a JTC Flatted Factory?
The minimum clear ceiling height for a Flatted Factory is between 4 and 6 metres, though this may be increased based on specific tenant operational needs.
What are the Green Cover targets for JTC industrial buildings?
Specific Green Cover targets are provided to consultants by the Urban Planning & Architecture Division (UPAD) and are defined as the total landscaped area of a site as seen from a satellite.
What is the maximum allowable spacing for boreholes in ground investigations?
Consultants must ensure that the maximum spacing between boreholes (BH) is not more than 60 metres, in accordance with BCA requirements.
Are solar PV panels mandatory for new JTC buildings?
New JTC buildings must be 'solar-ready,' meaning roofs must be maximized for future solar deployment with upfront electrical infrastructure and suitable base stumps provided.
What are the vibration requirements for semi-conductor industrial facilities?
Semi-conductor industrial buildings must meet vibration criteria ranging from VC-B to VC-D to protect sensitive equipment.
How many lifts are required per JTC building?
JTC requires a minimum of two lifts per building, which can be a combination of passenger, goods, or service lifts.
What is the protocol for design deviations from the BDR?
All deviations must be highlighted to the JTC Project Team, populated in the BDR Deviations List (Appendix H), and presented during PDR or DDR sessions for Senior Management’s approval.
What sustainability standard must new JTC buildings achieve?
All new JTC buildings are required to achieve the Green Mark Platinum Super Low Energy (SLE) Building standard or an equivalent.
