Lesson 2 of 15 · Property
Renovating an HDB flat
HDB rules, the Directory of Renovation Contractors and permit conditions are separate from your private contract with the contractor.
Rules, practice and our recommendation
- Official requirement or guidance
- HDB says flat owners must use contractors listed in its Directory of Renovation Contractors for renovation works, and some works need prior written approval.
- Common practice
- A contractor commonly submits the permit application for the owner, but the owner remains responsible for ensuring the works follow HDB conditions.
- AssureShield recommendation
- Confirm the contractor's current DRC listing and the permit status yourself before work starts.
Check the proposed work before freezing the design
Wall hacking, window works, air-conditioning and electrical work can have specific requirements. Ask the contractor to identify each approval, trained installer or licensed worker needed for your actual scope.
Understand what DRC listing means
A DRC listing concerns HDB renovation requirements. HDB expressly says it does not endorse or guarantee the quality of listed contractors' work. Your price, quality, programme and warranty remain part of your private agreement.
Keep the official and contract records together
- Current DRC search result
- Approved floor plan and HDB permit
- Notice of Renovation and permitted work dates
- Electrical, air-conditioner or window installer details
- Signed scope, variations, invoices and handover records
Before you move on
- Contractor listing checked
- Permit-requiring works identified
- No hacking starts before written approval
- Specialist worker details recorded
Official sources
Source links checked 7 September 2026. Agency pages and requirements can change, so check the current page for your work before relying on it.
- HDB renovation guidance (Housing & Development Board)
- Application for a renovation permit (Housing & Development Board)
- Looking for renovation contractors (Housing & Development Board)
- Engaging Licensed Electrical Workers (Energy Market Authority)
General education only. Requirements depend on the property, proposed work, approvals and contract. Check the current agency guidance and use an appropriate qualified professional when the work or dispute needs one.