Most homeowners assume contractors handle everything.
Usually true — but understanding permits helps you avoid costly mistakes.
The Permit Is Mandatory
Any renovation involving:
- Hacking
- Electrical
- Plumbing
- Structural changes
👉 Requires an HDB permit
Your contractor submits it — but you are responsible.
Always ask:
“Do you have the permit approval number?”
What the Standard Permit Covers
- Hacking non-structural walls
- Flooring installation / overlay
- Electrical points
- Plumbing in existing wet areas
- Carpentry
- Painting
What Requires Additional Approval
Structural Walls
- Cannot be hacked
- Must verify via building plans
Bomb Shelter
- Cannot modify external structure
- Door must remain functional
Façade / Windows
- Changing exterior → requires BCA approval
Electrical Rewiring
- Requires Licensed Electrical Worker
- Submission to SP Group
Air Conditioning
- Must use licensed installer
- Outdoor unit placement regulated
Renovation Time Rules
- Weekdays:
- General work → 9 AM – 6 PM
- Noisy work → 9 AM – 5 PM
- Saturday:
- Noisy work → 9 AM – 1 PM
- Sunday & Public Holiday:
- ❌ No work allowed
Violations can lead to:
- Complaints
- Fines
- Work stoppage
Why the Permit Protects You
- Creates official renovation record
- Important for resale
- Prevents illegal modification issues
The Bottom Line
The permit isn’t just paperwork — it’s protection.
Your role:
- Confirm it exists
- Understand limitations
When unsure → check directly with HDB.
