# Interior Designers in Singapore

Most HDB interior design firms in Singapore are design-and-build: they design, then subcontract the works. Since 2025 data puts 4-room HDB renovations at about $51,000–$80,000, choose a firm that is HDB-registered (DRC) for the building works and, ideally, CaseTrust-accredited so your deposit is capped at 20% and bonded.

## Key facts
- Listings: 592
- Matched to a government licence/register: 144
- Median years in business: 11

## Prices in Singapore
Total renovation budgets for projects handled by interior design firms in 2025 (Qanvast data). Design fees are usually built into the package rather than charged separately.

| Service | Typical price | Notes |
|---|---|---|
| 3-room BTO | S$36,100–S$43,700 per flat | Indicative; small sample |
| 4-room BTO | S$51,000–S$61,800 per flat |  |
| 5-room BTO | S$67,000–S$82,400 per flat |  |
| 4-room resale | S$64,300–S$80,300 per flat |  |
| 5-room resale | S$84,300–S$97,000 per flat |  |
| Custom carpentry, kitchen cabinets | S$180–S$360 per foot run | Laminate finish; veneer or spray paint costs more |

## Licences
- **Directory of Renovation Contractors (DRC)** (Housing & Development Board (HDB), required): The firm (or the contractor it uses) must be DRC-listed to carry out renovation works in an HDB flat. Interior design itself is not licensed, but the building works are. Check: https://www.hdb.gov.sg/managing-my-home/renovation-and-maintenance/renovation/important-information-on-renovations
- **CaseTrust accreditation for renovation businesses** (Consumers Association of Singapore (CASE), optional): Deposit capped at 20% and protected by a performance bond, standard renovation contract, milestone payments and a minimum 12-month workmanship warranty. Check: https://casetrust.case.org.sg/Home/casetrustlist

## How to choose
- Shortlist by portfolio of completed (not 3D-rendered) homes of your flat type and age, and ask to speak to a past client.
- Ask for an itemised quotation with quantities, materials and brands; compare it with at least two other firms using the same brief.
- Clarify whether the design fee is separate or bundled, and how many revisions of drawings are included.
- Check the firm's CaseTrust status and HDB DRC listing, and who will be the site supervisor day to day.
- Agree on a timeline with handover date, and how delays caused by the firm are handled.

## Red flags
- Large 'package' discounts that disappear once the quotation is itemised.
- Portfolio made up mostly of 3D renders rather than completed homes.
- Requests for a big upfront deposit before drawings are finalised.
- Reluctance to put verbal promises (materials, timelines, warranty) into the contract.

## Listings (top 30)
- [Unimax Creative](https://lookup.sg/biz/unimax-creative), Novena · 288 Balestier Rd #02-02 · 12 min walk from Novena MRT · BCA registered · registered 2002
- [Singapore Interior](https://lookup.sg/biz/singapore-interior), Geylang · 124 Lor 23 Geylang #08-01/02 Arcsphere, Lift, Lobby 2 · 4 min walk from Aljunied MRT · BCA registered · registered 2006
- [Meng Design & Build](https://lookup.sg/biz/meng-design-and-build), Clementi · 154 West Coast Road, #01-89 · 14 min walk from Clementi MRT · BCA registered · registered 1980
- [Hong Lee Building Materials](https://lookup.sg/biz/hong-lee-building-materials), Hougang · 1 Defu Lane 4 · 15 min walk from Hougang MRT · BCA registered · registered 1988
- [ID21](https://lookup.sg/biz/id21), Singapore River · 1 Kim Seng Promenade, #16-04/05/06 Great World City East Tower · 1 min walk from Great World MRT · BCA registered · registered 1998
- [Meng Design & Build](https://lookup.sg/biz/meng-design-and-build-joo-chiat), Joo Chiat · 42 Joo Chiat Rd · 8 min walk from Cc9 MRT · BCA registered · registered 1980
- [Square Room Interior Design](https://lookup.sg/biz/square-room-interior-design), Novena · 432 Balestier Rd, #01-432 Public Mansion · 9 min walk from Toa Payoh MRT · BCA registered · registered 2003
- [Simple Closet (S) Pte. Ltd.](https://lookup.sg/biz/simple-closet-s-pte-ltd), Sembawang · 71 Woodlands Avenue 10 #04-14 · 17 min walk from Sembawang MRT · BCA registered · registered 2009
- [Grandwork Interior](https://lookup.sg/biz/grandwork-interior), Serangoon · 4 Ang Mo Kio Industrial Park 2 · 23 min walk from Ang Mo Kio MRT · BCA registered · registered 1996
- [Valencia Design Pte. Ltd.](https://lookup.sg/biz/valencia-design-pte-ltd), Geylang · 35 Tannery Rd · 8 min walk from Geylang Bahru MRT · BCA registered · registered 2003
- [Designscale pte ltd](https://lookup.sg/biz/designscale-pte-ltd), Bukit Merah · 8 Jln Kilang Barat, #04-05 Central Link · 13 min walk from Queenstown MRT · BCA registered · registered 2005
- [LS2 Design and Construction](https://lookup.sg/biz/ls2-design-and-construction), Bishan · 37 Jln Pemimpin, #06 06 · 2 min walk from Marymount MRT · BCA registered · registered 2003
- [Acoustics Wall System](https://lookup.sg/biz/acoustics-wall-system), Bedok · 243 Kaki Bukit Ave 1 · 5 min walk from Kaki Bukit MRT · BCA registered · registered 2005
- [I Design & Build](https://lookup.sg/biz/i-design-and-build), Tampines · 12 Changi South Street 1 · 8 min walk from Expo MRT · BCA registered · registered 2004
- [Delco Art Interior Pte Ltd](https://lookup.sg/biz/delco-art-interior-pte-ltd), Geylang · Eunos Industrial Estate, 1079 Eunos Ave 7 · 6 min walk from Cc9 MRT · BCA registered · registered 2001
- [RH Design & Build](https://lookup.sg/biz/rh-design-and-build), Sungei Kadut · 7 Mandai Link, #08-25 · 19 min walk from Yew Tee MRT · BCA registered · registered 2006
- [A & D Designers Group](https://lookup.sg/biz/a-and-d-designers-group), Geylang · 140 Paya Lebar Rd, #02-13 AZ@Paya Lebar · 2 min walk from Macpherson MRT · BCA registered · registered 2008
- [Athena Concepts Pte. Ltd.](https://lookup.sg/biz/athena-concepts-pte-ltd), Queenstown · 115A Commonwealth Dr, #05-23 · 3 min walk from Commonwealth MRT · BCA registered · registered 2006
- [Ritchie Creative Design](https://lookup.sg/biz/ritchie-creative-design), Bukit Timah · 144 Upper Bukit Timah Rd, #03-04 Beauty World Centre · 1 min walk from Beauty World MRT · BCA registered · registered 2005
- [Collective Designs Pte Ltd](https://lookup.sg/biz/collective-designs-pte-ltd), Geylang · #01-21 Vertex Building, 33 Ubi Ave 3 · 8 min walk from Tai Seng MRT · BCA registered · registered 1993
- [mü interior](https://lookup.sg/biz/mu-interior), Geylang · 178 Paya Lebar Rd, #04-11 · 4 min walk from Macpherson MRT · BCA registered · registered 1981
- [Falkcon Interior Pte. Ltd.](https://lookup.sg/biz/falkcon-interior-pte-ltd), Pasir Ris · 20 Loyang St · BCA registered · registered 2002
- [SCA Design Pte Ltd](https://lookup.sg/biz/sca-design-pte-ltd), Toa Payoh · 510 Thomson Rd #11-03, SLF Complex · 5 min walk from Caldecott MRT · BCA registered · registered 2006
- [Design iOi Pte Ltd](https://lookup.sg/biz/design-ioi-pte-ltd), Yishun · 1 Yishun Street 23, #05-44 YS-ONE Building · 15 min walk from Yishun MRT · BCA registered · registered 2005
- [ZAL Interiors Pte Ltd](https://lookup.sg/biz/zal-interiors-pte-ltd), Geylang · 110 Lor 23 Geylang, #04-10 Victory Centre · 3 min walk from Aljunied MRT · BCA registered · registered 2008
- [Vivere Design Studio](https://lookup.sg/biz/vivere-design-studio), Geylang · 176 Sims Ave · 5 min walk from Aljunied MRT · BCA registered · registered 2007
- [JD and Partners](https://lookup.sg/biz/jd-and-partners), Bukit Merah · 47AA Kampong Bahru Rd · 4 min walk from Cc31 MRT · BCA registered · registered 2007
- [Crescendo Interior and Lifestyle](https://lookup.sg/biz/crescendo-interior-and-lifestyle), Geylang · 81 Ubi Ave 4, #02-31 Ubi One · 5 min walk from Tai Seng MRT · BCA registered · registered 2007
- [Decofurn Pte. Ltd.](https://lookup.sg/biz/decofurn-pte-ltd), Woodlands · 61 Woodlands Industrial Park E9, #03-03 · 13 min walk from Admiralty MRT · BCA registered · registered 2008
- [Artdecor Design Studio Pte Ltd](https://lookup.sg/biz/artdecor-design-studio-pte-ltd), Hougang · 7 Defu Lane 10 · 13 min walk from Kovan MRT · BCA registered · registered 2008

## By area
- Geylang: 140
- Bukit Merah: 35
- Woodlands: 35
- Kallang: 33
- Toa Payoh: 27
- Bishan: 25
- Joo Chiat: 25
- Clementi: 23
- Tampines: 23
- Yishun: 23
- Bedok: 22
- Hougang: 22
- Novena: 21
- Serangoon: 19
- Downtown Core: 16

## FAQs
### Should I hire an interior designer or a contractor directly?
An interior design firm handles design, drawings, coordination and supervision, which suits owners with little time or complex layouts. Going to a contractor directly is usually cheaper but you manage the design and the trades yourself. Either way, the firm doing building works in an HDB flat must be in HDB's Directory of Renovation Contractors.

### How much does interior design cost for a 4-room HDB?
Qanvast's 2025 data puts total renovation costs for a 4-room BTO at about $51,000–$61,800 and a 4-room resale flat at about $64,300–$80,300. Most Singapore ID firms bundle the design fee into the renovation quote. Carpentry is often the largest line item, at roughly $180–$360 per foot run for laminate kitchen cabinets.

### How do I avoid interior design deposit scams?
Keep the initial deposit low and tie later payments to completed milestones. CaseTrust-accredited firms cap initial deposits at 20% of the total and must buy a deposit performance bond that protects it if the business closes. Check the firm on CASE's accredited list and on HDB's renovation contractor directory before signing.

### Is RenoTrust the same as CaseTrust?
We could not find an official scheme called RenoTrust. The recognised consumer scheme for renovation firms is CASE's CaseTrust accreditation for renovation businesses, including a joint CaseTrust–RCMA scheme for members of the Singapore Renovation Contractors and Material Suppliers Association. Verify any claimed accreditation on CASE's list of accredited businesses.

## Sources
- CASE: CaseTrust accreditation for renovation businesses: https://case.org.sg/casetrust/casetrust-accreditation-for-renovation-businesses/
- CASE: List of CaseTrust-accredited businesses: https://casetrust.case.org.sg/Home/casetrustlist
- HDB: Important information on renovations (Renovation Control Rules): https://www.hdb.gov.sg/managing-my-home/renovation-and-maintenance/renovation/important-information-on-renovations
- Qanvast: How much is a 3, 4 and 5-room HDB renovation in 2025? (15 Jan 2025): https://qanvast.com/sg/articles/-3384
- SmartCalculator.sg: Carpentry cost Singapore (2026): https://www.smartcalculator.sg/articles/carpentry-cost-singapore-2026

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Source: Lookup (https://lookup.sg) · Data as of October 2026 · Listings compiled from Singapore government open data (data.gov.sg), OneMap and Overture Maps places. Free listings never show contact details; featured listings are labelled.