How Much Does Interior Design Cost in Singapore?

The honest answer nobody gives you upfront — what you actually pay, what drives the price, and where most people go wrong with their budget.

The first thing people do when they start thinking about renovation is Google "interior design cost Singapore." Then they see numbers ranging from $20,000 to $150,000 and feel more confused than when they started.

That wide range is not wrong. It is just unhelpful without context. So let us break it down properly — what the actual costs are in 2025, what drives them up or down, and what most homeowners do not realise until they are already halfway through their renovation.

The Two Things You Are Actually Paying For

When people say "interior design cost," they usually mean the total renovation cost. But there are two separate things bundled in there:

•         The design fee — what the ID firm charges for their time, expertise, 3D renders, and project management. This is typically $1,500 to $6,000 for an HDB flat, or 5 to 10 percent of your total renovation budget.

•         The renovation cost — the actual physical work. Carpentry, flooring, tiling, painting, electrical, plumbing. This is where the bulk of the money goes.

Some firms include the design fee within their renovation package. Others charge it separately. Always ask upfront which you are looking at — because a quote that looks cheap might simply have left the design fee off.

What Interior Design Actually Costs in Singapore — 2025 Figures

Here is a realistic breakdown by property type. These are not the cheapest possible prices or the most premium — they reflect what mid-range renovations with decent quality actually cost in the current Singapore market.

Property Type	Basic	Mid-Range	Full Premium
3-Room HDB	$20k–$32k	$32k–$48k	$48k–$70k
4-Room HDB	$35k–$48k	$48k–$68k	$68k–$90k
5-Room HDB	$45k–$58k	$58k–$78k	$78k–$110k
Condo (1–2 bed)	$30k–$50k	$50k–$80k	$80k–$130k
Condo (3 bed)	$55k–$75k	$75k–$110k	$110k–$160k

* Inclusive of design fee, carpentry, flooring, painting, and basic electrical and plumbing. Subject to site assessment.

Worth knowing

Resale HDB flats cost 20 to 40 percent more to renovate than BTO flats. Older units need hacking, rewiring, and waterproofing before any new work can start — costs that BTO owners simply do not have. Always factor this in when comparing quotes.

What Actually Drives the Cost Up

Two renovations of the same flat size can have very different price tags. Here is why:

The carpentry

Built-in wardrobes, kitchen cabinets, TV consoles, study shelving — carpentry is the single biggest cost in most Singapore renovations. It typically takes 30 to 40 percent of the total budget. The difference between laminate and solid timber, between standard hardware and Blum or Hettich fittings, is significant. This is also where a lot of the quality variation between contractors lives.

The countertop material

Sintered stone costs two to three times more than quartz, which already costs more than laminate. For a 4-room HDB kitchen, the countertop choice alone can swing your budget by $3,000 to $8,000.

Whether the flat needs hacking

Hacking old tiles, removing walls, demolishing existing cabinetry — all of this costs money before any new work starts. A resale flat that needs full hacking can add $5,000 to $15,000 to the baseline cost before you have chosen a single new material.

The ID firm's tier

A boutique studio with awards and a strong portfolio charges more than a newer firm that is still building its name. Neither is necessarily better for your specific project — but the overhead difference is real and it shows up in the design fee.

What You Can Cut Without Regret

Not everything in a renovation deserves equal budget. Here is where experienced homeowners save money without feeling it:

•         Flooring — quality vinyl plank looks nearly identical to timber, costs a fraction of the price, and is easier to maintain in Singapore's humidity.

•         Feature walls — a limewash or textured paint finish gives the same effect as an expensive stone panel at a much lower cost.

•         Light fittings — the shape matters more than the brand. A well-chosen simple pendant from a local supplier looks just as good as an expensive imported one.

•         Accessories and decor — never spend renovation budget on items you can buy afterwards. Source plants, ceramics, and soft furnishings from markets and local shops once you move in.

Where You Should Not Skimp

Some things cost more for a good reason and cutting them creates problems for years:

•         The kitchen hood — in a Singapore home, a weak hood means grease on every surface and smells in every room. Buy a proper one with external ducting.

•         Waterproofing in wet areas — cutting corners here leads to leaks into the unit below, which becomes your legal and financial problem.

•         Cabinet hardware — cheap hinges and drawer runners fail within a few years. Good hardware lasts the lifetime of your flat.

•         Electrical planning — adding power points after renovation is expensive and messy. Plan them all upfront.

Is Hiring an Interior Designer Worth It?

Depends what you are renovating. For a simple touch-up — new paint, replace a few fixtures, change the flooring — a good contractor is probably enough.

For a full renovation of an HDB flat or condo, an interior designer is almost always worth the fee. Here is why: they manage the contractors so you do not have to, they know what materials work in Singapore's climate, they handle HDB permit submissions, and — probably most importantly — they stop you from making expensive decisions that look good in photos but do not work in real life.

A five percent design fee on a $60,000 renovation is $3,000. If that ID saves you from a $5,000 mistake — which happens more often than you think — the fee has already paid for itself.

One thing to check

Always ask whether the design fee is included in the renovation quote or charged separately. Some firms absorb it into the renovation cost. Others charge it upfront before any work is confirmed. Neither is wrong — just make sure you know which one you are dealing with before comparing quotes.

Quick FAQ

Can I get a good renovation under $40,000?

For a 3-room HDB or a partial renovation of a 4-room flat — yes, comfortably. For a full 4-room renovation with proper carpentry, new flooring, and kitchen and bathroom works, $40,000 is tight but possible with disciplined material choices. A beautiful home does not require a massive budget. It requires smart prioritisation.

How do I know if a quote is fair?

Get at least three quotes. Read every line — not just the total. Check that haulage, disposal, and cleaning are included. Ask what happens if the scope changes mid-renovation. A quote with no itemisation is a quote you cannot properly evaluate.

What is a realistic timeline for an HDB renovation?

Eight to twelve weeks for a full renovation. Resale flats that need more demolition typically take longer. Budget an extra two to three weeks for HDB permit approval before physical work can start.

Do I need to hire a designer and a contractor separately?

Not necessarily. Many ID firms in Singapore handle both design and the renovation work under one roof, which simplifies communication and accountability. If you go with an ID firm, confirm that they manage the contractors directly and are responsible for the final outcome — not just the design.

Last Thing

The biggest mistake homeowners make is approaching renovation backwards — picking a style first, then trying to fit a budget around it. Start with a realistic budget, understand where the money actually goes, then build your design within those parameters.

That is how you end up with a home you love and a bank account that is not completely empty when you move in.

Not Sure What Your Renovation Should Cost?

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