HDB flats in Singapore follow strict rules on doors and locks for fire safety, structural integrity, and emergency access. Whether you’re replacing a traditional lock or upgrading to a smart digital lock, you must comply with HDB and SCDF regulations.
Key HDB Door Lock Regulations in 2026
HDB main entrance doors are usually fire-rated doors (30 or 60 minutes rating). Since 1 March 2024 (still strictly enforced in 2026), any digital lock installed on these doors must be fire-rated and certified with a valid Certificate of Conformity (CoC) meeting SS 332 or EN 1634-1 standards.
- Must maintain the door’s original fire rating.
- Needs a mechanical override (manual key) for emergencies.
- Professional installation required — no excessive drilling.
Legal Lock Types for HDB Flats
Allowed:
- Traditional mechanical mortise locks and deadbolts (always compliant).
- Certified fire-rated digital/smart locks (fingerprint, PIN, RFID, app control).
- Gate locks (more flexible, no fire rating needed if no structural damage).
Not Allowed:
- Non-certified digital locks on fire-rated main doors.
- Locks that protrude and block common corridors.
- Modifications that damage the self-closing mechanism.
Do You Need HDB Approval?
- Lock replacement only (no door change): Usually no permit needed if compliant.
- Full door replacement or major modification: Requires HDB approval.
- Always check your specific flat type.
Why Compliance Matters in 2026
Non-compliant locks can void fire safety, cause problems during resale inspections, or compromise safety during emergencies.
Pro Tip: Always ask for CoC documents before buying.
Tips for Upgrading Your HDB Door Lock
- Verify CoC certification.
- Measure door thickness (usually 38-45mm) and backset.
- Choose slim-profile locks for tight HDB spaces.
- Hire experienced professionals.
Need expert HDB-compliant lock installation?
Speedy Locksmith Singapore — they specialize in certified fire-rated digital locks, traditional locks, and emergency services for HDB flats.
Internal Links:
For official info, check the SCDF Digital Locksets page.
Stay safe and compliant! If you need help choosing or installing the right lock, just contact Speedy Locksmith.
