HDB & BCA Rules
Permits, hacking limits, permitted hours and more — the official HDB and BCA renovation rules, each tied to its primary source.
HDB Hacking and Wall Rules Explained
What you can and cannot hack in an HDB flat — structural vs non-structural walls, the bomb shelter, floor and loading limits, and the permitted hacking hours.
Updated Oct 2026HDB Renovation Permit: What You Need to Know
Which HDB renovation works need a permit, which don't, and how your registered contractor applies — with HDB's official rules and the works banned outright.
Updated Oct 2026