HDB Renovation Guide: What Every Homeowner Must Know (2025)

HDB has strict guidelines to ensure safety and structural integrity. Before renovating, understand what you can and cannot do. In this hdb renovation guide, we will share with you the key point to take note so you can have a smooth renovation process.

What You CAN renovate:

• Flooring (vinyl, tiles, laminate)

• Kitchen carpentry

• Bathroom fittings (non-hacking)

• Bedroom and main doors

• Windows (only with HDB-approved contractors)

• False ceilings & lighting

What requires HDB approval:

• Hacking of walls (only non-structural walls can be removed)

• Changing windows

• Changing of fire rated main door

What is NOT allowed:

• Removing structural walls

• Extending bathrooms beyond original boundaries

• Raising floors excessively

• Installing oversized or unsafe window types

Tip: Always check if your contractor is HDB-licensed before hiring.

2. HDB Renovation Timeline (Realistic Expectation)

A typical hdb renovation takes:

Renovation Task	Estimated Duration
Hacking	3–7 days
Electrical & Plumbing	1–2 weeks
Flooring	1–2 weeks
Carpentry	3–5 weeks
Painting & Final Touches	1 week
Total	6–10 weeks depending on complexity

Resale flats usually need longer due to hacking and reconfiguration.

3. HDB Renovation Cost Guide (2025 Updated)

HDB renovation costs vary based on the flat age, size, and materials.

Average HDB renovation cost in Singapore:

• 3-Room HDB: $30,000 – $50,000

• 4-Room HDB: $40,000 – $70,000

• 5-Room HDB: $50,000 – $90,000

Breakdown of typical renovation costs:

Category	Price Range
Flooring	$4,000 – $9,000
Carpentry (Kitchen, wardrobes)	$10,000 – $25,000
Electrical works	$2,000 – $5,000
Painting	$1,000 – $2,500
Windows & Doors	$2,000 – $6,000
Plumbing	$500 – $2,000
Bathroom renovation	$4,000 – $9,000

4. HDB Renovation Guide: Choosing Materials for Singapore Weather

Singapore’s humidity means the wrong materials can warp, mold, or deteriorate quickly.

Recommended materials:

• Vinyl flooring: Affordable, waterproof, durable

• Quartz countertops: Heat-resistant and long-lasting

• Sintered stone: Extremely durable and scratch-resistant

• Laminated doors: Affordable and stable

• Tempered glass doors: Stylish and easy to maintain

Avoid where possible:

• Cheap plywood

• Marble in high-use areas (porous, stains easily)

• Non-waterproof laminates for bathrooms or kitchens

5. HDB Renovation Guide: Plan Your Electrical & Lighting Early

Many homeowners regret not planning their switches, sockets, and lights properly.

Checklist:

• Extra power outlets for kitchen appliances

• USB or power sockets near bed

• TV and console wiring

• Ceiling fan points

• Smart home compatibility

• Warm vs cool lighting placement

6. Windows, Doors & Grilles — Follow HDB Regulation

HDB requires certain safety standards for:

• Window types

• Grille designs

• Fire-rated main doors (for some units)

Tip: Always use HDB-licensed contractors for window and fire rated door installation.

7. Common Renovation Mistakes to Avoid During HDB Renovation

❌ Choosing looks over practicality

❌ Not planning storage properly

❌ Selecting materials that are hard to maintain

❌ Forgetting ventilation for bathrooms

❌ Overbuilding carpentry (too much built-in furniture)

Remember: A functional home = long-term satisfaction.

8. Should You Pick an ID Firm or a Contractor During HDB Renovation?

Interior Designer (ID)

✔ Best for homeowners who want a turnkey solution for their HDB renovation

✔ Provides 3D drawings, design matching, project management

✔ Higher cost

Direct Contractor

✔ More affordable

✔ You manage design and coordination

Budget-conscious homeowners often choose contractors + direct factory suppliers.

Final Thoughts On HDB Renovation

A successful HDB renovation requires smart planning, good material choices, and understanding of HDB rules. Whether you prefer a modern, minimalist, or cosy style, the goal is to create a home that is beautiful, functional, and built to last.

At Singapore Best, we help you renovate with confidence. Browse our HDB renovation guides to make informed decisions for every part of your home.