Quick answer: In 2026, a full-service interior design and renovation in Singapore costs roughly S$58,000–S$95,000 for a 4-room BTO, S$95,000–S$150,000 for a 4-room resale HDB, S$80,000–S$220,000 for condominiums, and S$280,000–S$800,000+ for landed homes. Prices reflect premium-tier ID firms with in-house project management, custom carpentry, and quality-controlled finishes — not budget contractor rates.
Search “interior design cost Singapore” and you’ll get numbers swinging from S$20,000 to S$300,000. None of those ranges help you plan. They just help someone sign a quote blindly — and panic three months later when the variation orders start landing.
Here’s what’s actually happening in 2026: material costs have stabilised, but skilled labour for hacking, masonry, electrical, carpentry, and tiling has climbed sharply. The gap between a “virgin” BTO and a 30-year-old resale flat — same floor area — is now often S$50,000 or more. And the trendy details flooding your feed (curved islands, limewashed walls, fluted feature panels, integrated lighting) are not aesthetic decisions. They’re labour multipliers.
This guide gives you the transparent, line-item breakdown most homeowners only see after they’ve already signed.
The old “per room” rate is dead. In 2026, your renovation cost is dictated by destructive work — hacking, rectification, rewiring, and waterproofing — not just floor area. Two owners with identical 4-room flats can receive quotes that differ by S$50,000+ purely because one unit is new and the other is 30 years old.
The ranges below reflect full-service ID work from established firms (in-house project management, quality-graded carpentry, hardware from Blum/Hettich/Hafele tier, proper site supervision, contract-backed timelines). Budget contractor rates run lower; designer-led luxury runs higher.
| Property Type | 2026 Range | What Drives the Cost |
|---|---|---|
| 3-Room BTO | S$48,000 – S$68,000 | New shell, minimal hacking. Cost goes into carpentry, lighting, and design detailing rather than demolition. |
| 4-Room BTO | S$58,000 – S$95,000 | The “sweet spot” property. Full carpentry suite, feature walls, integrated lighting, premium finishes. |
| 4-Room Resale HDB | S$95,000 – S$150,000 | The Hacking Premium: demolition, debris haulage, rectification, full rewiring, bathroom waterproofing. |
| 5-Room Resale HDB | S$110,000 – S$180,000 | More walls to hack, more tiles to relay, more rooms to rewire. Larger carpentry footprint. |
| New Condo | S$80,000 – S$160,000 | Often handed over move-in ready. Spend goes to carpentry, feature walls, lighting, and styling. |
| Resale Condo | S$150,000 – S$280,000+ | MCST hacking restrictions, lift padding, restricted work hours. You pay for the friction. |
| Landed (Terrace/Semi-D) | S$280,000 – S$650,000 | Multi-level coordination, structural works, outdoor integration, premium materials. |
| Landed (Bungalow/GCB) | S$500,000 – S$1.2M+ | Full architectural collaboration, imported materials, bespoke joinery, smart home integration. |
Zenith Arc Pro Tip: Buying a Resale HDB? Ring-fence S$5,000–S$8,000 just for electrical rewiring. Older circuits were never built for induction hobs, dryers, dual aircon zones, and 24/7 standby loads. Under-budgeting here is how tripped breakers and burnt sockets show up six months after you move in.
For a deeper breakdown by property type, see our specialist guides:
Trends aren’t aesthetic decisions. They’re labour multipliers. Here’s what the most-saved looks on Pinterest and Xiaohongshu actually cost when they hit your invoice.
Curves are the design equivalent of compound interest — they look soft, but they punish your wallet.
A straight edge is largely machine-driven. A curved profile demands a skilled carpenter to bend plywood and laminate by hand, build complex framing, and sand until everything is flawless. You’re paying for time, precision, and rework risk — not just more material.
That cloudy, wabi-sabi limewash wall you’ve been saving lives in a different price universe from standard emulsion paint.
Limewash is a technique, not a tin. The applicator is part painter, part artist — you’re paying for their hand and experience. Smart move: reserve limewash for one or two hero walls instead of the entire flat.
Fluted feature walls run S$45–S$85 per square foot depending on material (MDF, real timber veneer, or stone). Microcement floors and feature surfaces — the seamless, hand-trowelled look — start at S$45 per square foot and climb fast for full apartments. Both require skilled artisans, not general painters.
Recessed cove lighting, profile-mounted LED strips, and indirect ceiling washes cost 2–3× more than surface-mounted equivalents because of the carpentry, plastering, and electrical coordination required. The result is that “boutique hotel” glow — but the invoice reflects every metre.
Carpentry typically eats 30–40% of your total renovation budget. You may not know every material grade, but you can absolutely spot when something is way off. Use these 2026 benchmarks as your red-flag detector.
| Item | 2026 Price Range | Notes |
|---|---|---|
| Kitchen bottom cabinet | S$185 – S$280 per ft run | With Blum/Hettich soft-close, quartz top adds S$120–180/ft |
| Kitchen tall column / pantry | S$320 – S$480 per ft run | Internal organisers, pull-outs, integrated appliances |
| Wardrobe (casement / hinged) | S$340 – S$480 per ft run | Full-height, internal lighting, jewellery drawers add 15–25% |
| Wardrobe (sliding glass) | S$420 – S$620 per ft run | Aluminium profile + tinted/fluted glass |
| Shoe cabinet (full height) | S$340 – S$540 per ft run | With seating bench, mirror panel, internal LED |
| TV feature wall | S$45 – S$120 per sq ft | Depending on material: laminate, fluted, stone veneer, microcement |
| Vanity counter | S$280 – S$420 per ft run | With quartz/sintered stone top, integrated basin |
Zenith Arc Pro Tip: If a quote sits significantly above these ranges without a clear reason (premium hardware, complex internals, aluminium profiles, special finishes), pause and ask for an itemised breakdown. “No hidden costs” should be proven in line items, not printed in a brochure. Send us your quote for a complimentary review.
Renovation loan rates in Singapore currently hover around 4.08%–5.88% advertised, with effective interest rates closer to ~6%. How you structure payments can change your total spend by thousands.
Use a renovation loan (typically capped at S$30,000) for the non-negotiables: hacking, structural works, wet works, electrical rewiring, waterproofing. If — and only if — needed, top up with a personal loan for discretionary items like feature walls, walk-in wardrobes, or loose furniture.
Many ID firms now accept credit card payments with a 2–3% surcharge. On a S$120,000 spend, the miles on the right card can cover business-class flights for two. This only works if you can clear the statement in full every month. Otherwise card interest will wipe out any benefit and convert your dream home into a debt trap.
Reputable firms tie payments to completed stages: deposit on contract, after hacking and wet works, after carpentry installation, balance on handover. Avoid any quotation that demands a large lump sum upfront — that’s a structural red flag.
This is where you either protect yourself or set up months of stress. Insist on every item below in your ID/contractor agreement.
Zenith Arc holds both CaseTrust and BCA certifications, with contract-backed milestones and a standard 12-month defect liability period. That’s not a sales line — it’s the floor for what “premium” should mean in Singapore in 2026.
A flat number like “S$120,000 renovation” means nothing until you see how it breaks down per room. Here’s what ~S$20,000 realistically delivers per zone in 2026:
Reconfigured layout, full carpentry suite (top + bottom + tall column), quartz or sintered stone counter, premium backsplash (handmade tile, slab, or marble effect), all electrical points, integrated hood/hob/oven, soft-close hardware throughout.
Full retiling (floor + walls), proper waterproofing, premium sanitary ware (Grohe, Hansgrohe, or equivalent), rain shower, vanity cabinet with stone top, integrated mirror lighting, glass shower screen.
Full-height custom wardrobe with internal lighting, headboard feature wall with integrated lighting, bedside built-ins, study or vanity nook, blackout curtain rails, full ceiling treatment.
Full TV feature wall (fluted/stone/microcement), false ceiling with cove lighting, dining feature wall, full-height shoe cabinet with bench, curtain rails, all electrical points and lighting circuits.
Time is an invisible line item. Rushing almost always costs more.
Short deadline + limited working hours + trades overlapping = mistakes, rework, wastage, and “urgent” surcharges from sub-contractors. You typically pay 10–18% more for the privilege of compressing the schedule.
A realistic schedule with proper sequencing — hacking → wet works → carpentry → painting → final fixtures — keeps trades efficient and reduces errors. Premium firms typically run 10–14 weeks for HDB, 12–16 weeks for condos, and 4–8 months for landed.
When discussing your quote, ask your designer how the proposed schedule affects labour rates and whether extending by 1–2 weeks could save on overtime or rework.
For BTOs with minimal hacking, you can get reasonable results from a good contractor plus a clear design brief — if you have time to handle site checks, defect lists, and supplier coordination yourself.
For resale HDB, older condos, and landed homes, the complexity of permits, full electrical rewiring, wet works, MCST coordination, and design integration almost always justifies a full-service ID firm. Project management alone typically saves 4–8 weeks and prevents 5-figure rework mistakes.
The better question isn’t “Is an ID expensive?” It’s “Is this ID saving me more money, time, and stress than they cost?”
Stop asking “How much does my renovation cost?” Start asking “How much does this cost per year of use?”
This lens helps you:
When you think in cost-per-year, renovation moves from “scary one-time number” to “deliberate investment in how I live for the next decade.” That’s where your Singapore renovation finally starts working for you, not against you.
Numbers only mean something when you can see what they translate to. Below are recent Zenith Arc completions across HDB, condo, and landed segments — full project galleries are available on each page.
10,000+ completed projects across HDB, condo, and landed segments since founding.
Book a free design consultation — no obligation, no aggressive sales tactics. We’ll review your floor plan, walk through your style preferences, and give you a realistic cost framework.
Zenith Arc Showroom
24 New Industrial Road, #04-03 INSPACE
Singapore 536210
For full-service interior design in 2026, expect S$58,000–S$95,000 for a 4-room BTO, S$95,000–S$150,000 for a 4-room resale HDB, S$80,000–S$220,000 for condos, and S$280,000–S$800,000+ for landed homes. Design fees alone range from S$3,500–S$8,500 flat, or 10–15% of total project value for end-to-end management. Budget contractors run lower; designer-led luxury runs higher.
The Hacking Premium. Resale flats need demolition of old tiles and built-ins (S$10,000–S$15,000), full electrical rewiring (S$5,000–S$8,000), bathroom waterproofing redo (S$12,000–S$18,000 for two bathrooms), and frequent structural rectification before any aesthetic work begins. A new BTO skips all of that.
Three common models: (1) Percentage-based at 10–15% of total renovation value, suited to larger end-to-end projects; (2) Flat design fee of S$3,500–S$8,500 covering concept, 3D renders, and material selection, with construction quoted separately; (3) All-in turnkey package combining design, project management, and construction in one number. Always insist on an itemised breakdown so mark-ups are visible.
Buffer 10–15% of your total budget for: electrical rewiring (S$5,000–S$8,000 for older resale), debris disposal and lift protection (S$2,000–S$4,000), HDB/MCST permits and deposits (S$500–S$1,500), and the “Curve Tax” — expect 30–50% premium for curved carpentry, arched doorways, and rounded islands versus straight-line equivalents.
10–14 weeks is standard for full-service HDB renovations: 1 week site protection and hacking, 2–3 weeks wet works and tiling, 4–6 weeks carpentry installation, 1–2 weeks painting and finishing, 1 week defect rectification before handover. Resale flats sit at the longer end of the range. Condos run 12–16 weeks. Landed homes run 4–8 months.
For premium-tier work with quality carpentry, proper lighting, and design integration — S$58,000 is a realistic floor. Below that you’re either compromising on hardware grade (cheaper hinges, drawer runners, laminate quality) or skipping items (no feature walls, no integrated lighting, no false ceiling). Both are valid choices, but they should be conscious decisions, not surprises.
Yes. We offer a complimentary design consultation including floor plan review, style direction discussion, and a realistic cost framework — with no obligation. You can book online at zenitharc.com.sg/contact-us, WhatsApp us at +65 9851 8810, or visit our showroom at 24 New Industrial Road, #04-03 INSPACE.
10,000+ projects. 4× Qanvast SuperTrust. CaseTrust + BCA certified. In-house contractors. No surprises in the quote.
