Written by: **Hock Star Direct Contractor** Team (20+ Years HDB & BTO Experience) Last Updated: April 2026
The Bottom Line (BLUF)
Erecting a new wall in a Singapore HDB costs between $800 to $2,500, depending on whether you use drywall partitions, hollow blocks, or glass panels. Building structural or wet area walls (like in bathrooms) requires hollow blocks and strict HDB permits, while lightweight drywall partitions offer a faster, budget-friendly alternative for bedrooms and living spaces.
Types of Wall Erection in Singapore
Whether you are creating a new study room, dividing a large living room, or building a walk-in wardrobe, erecting a new wall completely changes the flow of your home. However, not all walls are built the same.
1. Hollow Block Walls (Wet Areas & Heavy Loads)
Hollow block walls are constructed using concrete blocks and cement mortar. They are highly durable, structurally sound, and water-resistant.
- Best For: Bathrooms, kitchens, and walls where you plan to mount heavy items (like large TVs or heavy cabinetry).
- HDB Rules: Erecting a hollow block wall requires an HDB permit because it adds significant weight (dead load) to the concrete floor slab.
2. Drywall Partitions (Gypsum Board)
Drywall involves building an aluminium or timber frame and covering it with gypsum boards. It is fast to install and easy to dismantle in the future.
- Best For: Creating temporary rooms, dividing dry living spaces, or constructing false ceilings.
- Pros & Cons: Extremely cost-effective and lightweight, but not suitable for wet areas and cannot support heavy wall-mounted fixtures without internal reinforcement.
3. Glass Partition Walls (Half-Wall / Full Glass)
Glass walls are incredibly popular for modern, open-concept BTOs. They allow natural light to flow between rooms while still providing physical separation.
- Best For: Home offices, kitchen boundaries, and modern master bedrooms.
- Safety: HDB requires all glass panels used in renovations to be tempered or laminated glass for safety.
Wall Erection Cost Comparison (2026)
When you hire a direct contractor, you bypass the 20-30% middleman markup charged by Interior Designers.
| Wall Type | Estimated Cost | Characteristics |
|---|---|---|
|
Drywall Partition |
$4.00 – $8.00 psf |
Fast, cheap, lightweight. Poor soundproofing unless insulated. |
|
Hollow Block Wall |
$12.00 – $18.00 psf |
Strong, durable, water-resistant. Requires HDB permit. |
|
Tempered Glass Wall |
$25.00 – $45.00+ psf |
Premium aesthetic, allows light transfer. Most expensive. |
Frequently Asked Questions (FAQ)
Can I build a hollow block wall anywhere in my HDB flat?
No. HDB restricts the total weight you can add to the floor slab. Your direct contractor must submit the proposed wall dimensions and location to HDB (and sometimes a Professional Engineer) to ensure the building can safely support the additional load.
How do I improve soundproofing on a drywall partition?
Standard drywall is hollow and transmits sound easily. To improve acoustic privacy, your contractor can pack the internal frame with rockwool or fiberglass insulation before sealing the gypsum boards.
Conclusion
Erecting a new wall is a powerful way to customize your HDB or condo layout to fit your lifestyle. By understanding the differences between hollow blocks, drywall, and glass partitions, you can make an informed decision that balances your budget with structural safety. Partnering with a direct contractor ensures your new walls are built strictly to HDB codes without the inflated design fees.
Contact **Hock Star Direct Contractor** today for a free consultation and quote on wall erection.
Disclaimer: The information provided in this article is for general informational purposes only. Renovation costs and HDB building guidelines are subject to change. Always consult with a licensed direct contractor to obtain accurate structural assessments, permits, and localized quotations before erecting any walls.