HDB Renovation Guidelines in Singapore: What Homeowners Must Know (2026 Complete Guide)
Renovating your HDB flat is an exciting step towards creating your dream home. However, before any hacking, drilling, or carpentry work begins, it is important to understand the renovation rules set by the Housing & Development Board (HDB).
Failing to comply with HDB regulations can result in delays, fines, or even having to reinstate your home at your own cost. This guide explains everything Singapore homeowners need to know about HDB renovation guidelines in 2026.
Why HDB Renovation Rules Are Important
HDB regulations are designed to:
- Protect the structural safety of buildings
- Maintain a peaceful living environment
- Ensure proper workmanship
- Prevent damage to neighbouring units
All renovation works must follow these guidelines, even if you hire a professional renovation contractor or interior designer.
Do You Need HDB Approval for Renovation?
Yes. Most renovation works in HDB flats require approval from HDB before starting.
Your renovation contractor must submit an application through the HDB Renovation Portal on your behalf. Homeowners are not allowed to apply directly unless they are doing very minor works.
Work can only begin after HDB approval is granted.
Common Renovation Works That Require Approval
The following works usually require HDB approval:
1. Hacking and Demolition
- Removing walls (non-structural only)
- Hacking of floor tiles
- Removal of existing finishes
Structural walls and beams are strictly not allowed to be removed.
2. Flooring Works
- Laying of new tiles
- Overlaying of flooring
- Replacement of marble or homogeneous tiles
Wet areas must comply with waterproofing requirements.
3. Electrical Works
- Rewiring
- Adding power points
- Upgrading distribution boards
All electrical works must be carried out by a Licensed Electrical Worker (LEW).
4. Plumbing and Sanitary Works
- Replacing pipes
- Relocating sinks
- Installing toilets
Works must be done by PUB-licensed plumbers.
5. Built-In Carpentry
- Wardrobes
- Kitchen cabinets
- TV feature walls
- Storage systems
Carpentry works usually do not require separate approval but must comply with fire safety and space regulations.
Renovation Works That Do NOT Require Approval
Some minor works can be done without HDB approval, including:
- Painting
- Installing shelves
- Changing doors (without modifying frames)
- Installing curtains and blinds
- Replacing sanitary fittings without relocation
Always check with your contractor before proceeding.
HDB Renovation Working Hours
To minimise disturbance to neighbours, HDB has strict renovation working hours:
General Works
- Monday to Saturday: 9:00am – 6:00pm
- Sunday & Public Holidays: Not allowed
Noisy Works (Hacking, Drilling)
- Monday to Friday: 9:00am – 5:00pm
- Saturday, Sunday & PH: Not allowed
Contractors must stop work immediately outside these hours.
Renovation Duration Limits
HDB also limits how long renovation works can take:
- New flats (BTO): Up to 3 months
- Resale flats: Up to 1 month
Extensions may be granted under special circumstances.
Choosing an HDB-Registered Contractor
You must engage a contractor listed under the HDB Registered Renovation Contractors Scheme (RRCS) for works that require approval.
Registered contractors:
- Understand HDB rules
- Handle permit applications
- Follow safety standards
- Are accountable to HDB
Avoid unregistered contractors as this can lead to serious penalties.
Renovation Safety and Protection Measures
Before renovation starts, your contractor should:
- Protect common corridors
- Cover lifts and walls
- Install debris chutes (if needed)
- Secure work areas
Homeowners are responsible for any damage caused to common property.
Fire Safety Requirements
HDB flats must comply with fire safety regulations:
- Minimum corridor width must be maintained
- Fire-rated doors must not be altered
- Escape routes must remain clear
- Kitchen cabinets must not block ventilation
Non-compliance can pose serious safety risks.
Common HDB Renovation Mistakes to Avoid
1. Starting Work Without Approval
This may result in stop-work orders and fines.
2. Hacking Structural Walls
This is illegal and dangerous.
3. Using Unlicensed Electricians or Plumbers
This can lead to safety hazards and insurance issues.
4. Exceeding Working Hours
Neighbour complaints may lead to HDB investigations.
5. Poor Waterproofing
This often causes water leakage to lower floors.
Typical HDB Renovation Process
Here is a simplified renovation workflow:
- Design Consultation
- Site Measurement
- Quotation and Contract Signing
- HDB Permit Application
- Renovation Works
- Inspection and Rectification
- Handover
Working with an experienced contractor helps ensure smooth progress.
Renovation Deposit and Payment Structure
Most renovation companies in Singapore follow a staged payment structure:
- 10%–30% upon contract signing
- 40%–60% during renovation
- Balance upon completion
Some firms may collect higher deposits depending on project scope. Always ensure payment terms are clearly stated in your contract.
How iCarpenter Supports Your HDB Renovation
At iCarpenter Pte Ltd, we help homeowners renovate with confidence by:
- Handling HDB permit applications
- Providing transparent quotations
- Using certified electricians and plumbers
- Offering custom carpentry solutions
- Providing after-sales support and warranty
Our experienced team ensures your renovation complies fully with HDB regulations while delivering quality craftsmanship.
Final Tips for a Smooth HDB Renovation
- Always check permits before work starts
- Keep copies of approval documents
- Communicate regularly with your contractor
- Inspect works at every stage
- Document any issues early
Good planning and the right contractor make all the difference.
Planning Your HDB Renovation?
If you are preparing to renovate your HDB flat, speak to our team for a professional consultation and customised proposal.
Contact iCarpenter today to start building your ideal home—safely, legally, and beautifully.