Finding the right interior designer in Singapore is one of the biggest decisions you will make when turning a bare flat into a home. A good designer saves you money, time and a great deal of stress; the wrong one can turn a dream renovation into months of disputes. Whether you have just collected the keys to a new BTO, are refreshing a resale flat, or planning a full condo renovation, this guide walks you through how the process works, what a fair quote looks like, and how to spot the firms worth your deposit.
This is a framework, not a ranked list of names. Renovation is deeply personal, and the “best” studio for a young couple wanting a bright Scandinavian HDB is not the same as the one you would pick for a luxury landed home. Use the criteria below to shortlist, then drop your own verified picks into the template near the end.
How to choose
Interior design in Singapore is competitive and largely unregulated in terms of who may call themselves a “designer”, so the burden of vetting falls on you. Work through these points before you commit:
- ID firm vs contractor vs architect. An interior design (ID) firm typically handles the look, the space planning and the project management, then engages tradespeople to build it. A renovation contractor focuses on the building works themselves and may offer less design input. An architect is a separate, licensed professional you need for structural changes, additions and alterations, or landed rebuilds, not for a standard flat makeover. Decide which one your project actually needs before you start calling around.
- HDB-licensed contractors (HDB registered). For any HDB renovation, the works must be carried out by a contractor on HDB’s Directory of Renovation Contractors. Many ID firms subcontract the build, so ask directly which registered contractor will do the work and confirm they will apply for the HDB renovation permit. Unpermitted hacking or works can land the flat owner, not the firm, in trouble.
- Portfolio and style fit. Look past the glossy hero shots. Ask to see completed projects of a similar type and budget to yours, ideally the same flat layout. A firm that excels at resale condo renovation may have little HDB experience, and vice versa. If you can, visit a completed home or a current worksite to judge finishing quality in person.
- Quotes and variation orders. Insist on an itemised quotation that lists materials, quantities, brands or grades, and labour, not a single lump sum. Compare at least three firms on a like-for-like basis. Understand how variation orders (changes made after the contract is signed) are priced, because vague quotes are where budgets quietly balloon.
- Project management. Ask who your single point of contact is, how often you will get site updates, and how many projects your designer runs at once. Renovation involves many trades arriving in sequence, and weak coordination is the most common cause of delays.
- Timeline. Get a written schedule with a start date, key milestones and a completion date. A realistic plan is a good sign; a firm that promises an unusually fast turnaround may be overcommitted.
- Deposit, payment schedule and CaseTrust. Never pay the full amount upfront. A fair structure is staged, with payments tied to completed milestones and a final sum released only on handover. Favour firms accredited under CaseTrust (the Consumers Association of Singapore’s scheme), which sets standards for deposits, clear contracts and dispute resolution. Some CaseTrust-accredited renovation businesses also offer deposit protection.
- Red flags. Be cautious of pressure to sign on the spot, a large deposit demanded before any drawings, quotes far cheaper than everyone else, reluctance to put things in writing, no proper company registration, and reviews that all sound suspiciously similar. Trust your instincts: if communication is poor during the sales stage, it rarely improves once your money is in.
What to expect
Costs vary enormously with the size of the home, its condition, the extent of hacking and carpentry, and the finishes you choose, so treat the figures below only as a rough guide. Prices change over time and between firms, and carpentry in particular is a major swing factor.
As a very rough starting point, a light refresh of a smaller HDB flat, mostly painting, some built-ins and cosmetic updates, tends to sit at the lower end. A fuller HDB renovation with new flooring, a reworked kitchen and bathrooms, and a good amount of custom carpentry typically lands in the mid range and can climb well beyond it for larger or higher-specification flats. Condo renovation often costs more per project because of unit size, building management requirements and premium finishes, while landed homes are effectively bespoke and priced case by case. Always build in a contingency of around ten percent for the surprises that older properties in particular like to spring.
On timeline, expect roughly one to two months for the design and quotation stage, including drawings and material selection, before any work begins. The build itself for a typical HDB flat commonly runs about two to three months, longer if there is extensive hacking, custom carpentry or imported materials. Condo and landed projects usually take longer. Building in buffer time around holidays and permit approvals will save you a lot of anxiety.
Our picks
Last checked: August 2026. Outlets and details change, so please confirm directly before you visit.
The firms below are long-standing, widely recognised names in Singapore’s interior design and renovation scene, chosen because they are established, have substantial portfolios, and are generally accredited or registered where it matters. Accreditations and registration status can lapse or change, so before you sign always confirm the firm is a current HDB-registered renovation contractor (or works with one) and check its CaseTrust accreditation directly.
Established all-rounders (HDB, condo and landed)
Ciseern by Designer Furnishings
Well suited to: an established name with a long track record · Area: islandwide · Price guide: $$
One of the older firms in the market, Ciseern has been around since the late 1990s, was an early adopter of CaseTrust accreditation, and has picked up Singapore Prestige Brand Awards. A safe, experienced choice for HDB and condo homeowners who value a proven name.
Rezt & Relax Interior
Well suited to: homeowners who want a workmanship warranty · Area: islandwide · Price guide: $$
A homegrown firm established around 2000, Rezt & Relax handles HDB flats, condos and landed homes, is CaseTrust accredited, and is known for offering a long workmanship warranty. A dependable all-rounder for a wide range of budgets and styles.
Weiken.com
Well suited to: a large firm with decades of experience · Area: islandwide · Price guide: $$
With more than two decades in the business, Weiken is one of the bigger, better-known ID firms in Singapore and has completed a very large volume of HDB and condo homes. Its scale means broad style coverage and structured project management.
Swiss Interior
Well suited to: carpentry-heavy HDB and BTO renovations · Area: islandwide · Price guide: $$
One of Singapore’s larger and longer-established firms, Swiss Interior takes HDB BTO, resale flats and condominiums end to end. It is an HDB-registered contractor and is often cited for its carpentry quality, making it a solid pick when built-ins are central to your design.
Design-led studios
The Interior Lab
Well suited to: design-forward homes with a strong aesthetic · Area: islandwide · Price guide: $$$
An award-winning studio established in the early 2010s, The Interior Lab has a well-regarded portfolio spanning HDB flats, condos and landed homes. A good fit for homeowners who care most about a distinctive, magazine-worthy finish.
Fifth Avenue Interior
Well suited to: custom residential and mixed commercial projects · Area: islandwide · Price guide: $$$
Fifth Avenue specialises in bespoke residential work alongside retail and office design, and operates under the CaseTrust renovation business scheme. Worth a look if you want a tailored, higher-end result and appreciate a designer who also handles commercial fit-outs.
Space Factor
Well suited to: boutique, personalised service · Area: islandwide · Price guide: $$$
A boutique firm covering HDB, condo and landed interiors, Space Factor is known for a more personal, design-focused approach. A strong option for homeowners who prefer working closely with a smaller studio rather than a large operation.
Value and practicality
Renozone
Well suited to: practical, value-conscious renovations · Area: islandwide · Price guide: $$
With over two decades of experience, Renozone has built a reputation for practical, customised renovation solutions and is a CaseTrust-RCMA accredited firm, adding a layer of consumer protection and contract clarity. A sensible choice for homeowners who want solid work without a premium-studio price tag.
These are editorial picks curated from publicly available information, not paid placements. Details such as pricing and opening hours change, so please confirm directly before visiting.
FAQ
Do I need an interior designer or just a contractor?
If you want a cohesive look, space planning and someone to manage the trades for you, an ID firm is worth it. If you already have a clear plan and only need the works built, a reputable renovation contractor may be enough and can cost less.
Is an ID firm’s quote negotiable?
Often, yes, especially on carpentry scope and finishes. Rather than pushing purely on price, ask what can be adjusted in specification or scope. A designer who explains the trade-offs is more trustworthy than one who simply drops the number.
How much deposit is normal?
There is no fixed rule, but you should never pay the full sum before work starts. Look for staged payments tied to milestones, and prefer CaseTrust-accredited firms that follow clearer deposit and contract standards.
What is a variation order?
It is any change to the agreed scope after you sign, such as adding a feature wall or upgrading a worktop. Get every variation priced and approved in writing before the work is done, so there are no surprises at the final bill.
How far ahead should I engage a designer?
For a BTO or resale flat, start speaking to firms two to three months before you collect keys. Good designers get booked up, and the extra lead time lets you compare quotes properly rather than rushing.
Explore more: best-furniture-stores-singapore · where-to-buy-sofa-singapore · setting-up-your-hdb-home