Luxury Condo Interior Renovation Cost Guide in SG 2026

2026 Price Bands for 1,000 Sqft Luxury Renovation

“Luxury” in the Singapore condo context means designer-led execution, custom joinery, natural stone, and a networked home automation layer — not upgraded paint and new sanitary ware. In 2026, the inflation-adjusted bands for a 1,000–1,200 sqft unit are:

– SGD 180,000–250,000: Full renovation with a reputable ID firm, engineered wood flooring, quartz or porcelain slabs, one luxury bathroom, and mid-tier appliance brands (Miele, Gaggenau). This is “premium,” not “luxury.”

– SGD 250,000–350,000: The true luxury band. Italian or Turkish marble, solid-plywood custom carpentry, designer lighting (Flos, Louis Poulsen), V-ZUG appliances, and a Lutron or KNX lighting/blind system.

– SGD 350,000–600,000+: Penthouse tier. Imported book-matched stone, bespoke joinery with bronze detailing, full Control4 automation, and custom furniture pieces. At this level the renovation cost runs SGD 350+ psf, versus SGD 180–250 psf for the mid-luxury band.

A top-tier HDB 5-room renovation tops out around SGD 120,000–150,000 total. The condo premium is not materials — it is MCST compliance, lift logistics, restricted working hours, and mandatory façade window replacement.

MCST Rules: How Condo Governance Inflates 2026 Quotes

Every Singapore condo runs through its Management Corporation Strata Title (MCST), and 2026 rules are stricter than the 2019 baseline in most developments. From the first ID site meeting, these charges appear:

– Renovation deposit: SGD 2,000–10,000, refundable after inspection but often reduced by an admin fee of SGD 200–500 for “record keeping.”

– Approved contractor list: Your contractor must be MCST-approved. Because approval involves insurance, compliance paperwork, and background checks, these contractors routinely quote 10–15% above open market rates for hacking, tiling, and electrical work.

– Lift access and protection: Expect SGD 150–400 per day for lift car wrapping and goods-lift usage, or a flat SGD 800–1,500 fee per project.

– Working hours: Typically 9:00am–5:00pm, Monday to Friday only. Hammer drilling is often restricted to 10:00am–12:00pm and 2:00pm–4:00pm. No Sundays, no public holidays. A project that would take 10 weeks in a landed house runs 14–16 weeks in a condo.

– Façade window replacement: More on this below — the single most overlooked MCST cost item in 2026 quotations.

Itemized 2026 Costs: Carpentry and Stone Dominate

Carpentry is the runaway cost driver at 35–45% of any luxury budget. A 3-room custom wardrobe set runs SGD 12,000–25,000 per room; the kitchen cabinetry alone consumes SGD 25,000–60,000 when built in solid plywood (biaxply or marine-grade) with soft-close mechanisms and stone tops.

Natural stone is the second anchor. Calacatta or Carrara marble runs SGD 60–120 psf installed; book-matched marble feature walls can push SGD 150 psf. Porcelain slabs (Dekton, Laminam) at SGD 40–80 psf are the pragmatic 2026 substitute that many IDs recommend because they avoid marble’s sealing and etching maintenance.

The remaining split: two bathrooms at SGD 25,000–50,000 each, V-ZUG or Gaggenau kitchen appliances at SGD 40,000–90,000, Daikin or Mitsubishi Starmex air-conditioning at SGD 12,000–20,000, and a lighting/blind automation layer at SGD 20,000–80,000 for Lutron QS or KNX-based systems.

Decoding ID Fees, GST 9%, and Quote Padding

Interior design fees in the luxury segment run either as a fixed design charge (SGD 5,000–20,000) or 10–15% of the construction contract. Renowned Singapore practices — Brewin Design Office, UPSTRS_, Free Space Intent — charge SGD 20,000 and above purely for design development, tender management, and site supervision.

GST is a non-negotiable calculation. The 9% rate has applied since 1 January 2024 and remains in force for 2026. A SGD 250,000 contract becomes SGD 272,500 with GST; the same contract with a 12% ID fee and a 5% contingency crosses SGD 300,000 before you buy a single fitting.

Audit the quotation for these specific line items:

– Provisional sums: Stone, appliances, and tiles not yet selected. A legitimate quote carries 10–15% provisional sums; zero provisional sums means the contractor is hiding the real price elsewhere.

– Supervision and coordination fees: 5–8% on top of trade prices is standard, but it must be itemised.

– Hacking and disposal: Ask for per-trip removal costs. A 4-month condo project generates SGD 1,000–2,500 in waste disposal and chute fees.

– Retention: The contract should withhold 5% for a defects liability period of at least 3 months.

Why Condo Window Replacement Costs 8 Weeks

Under Singapore’s Building Control Act, any window replacement above the third storey must be undertaken by a BCA-approved window installer. Condos add a second condition: the replacement must match the development’s façade standard — colour, glass tint, and profile. That specification immediately disqualifies 80% of general contractors from doing the work themselves and forces a specialist subcontractor with a 4–6 week material lead time.

For developments undergoing BCA’s Periodic Façade Inspection (buildings past 20 years), the window replacement is compulsory and scheduled unit by unit. Owners pick up the tab: SGD 2,500–6,000 per window installed, including plastering reinstatement and waterproofing.

The schedule impact is the real cost. Window work must finish before final painting and ceiling work in the affected zones. When the MCST-approved window installer has a backlog — normal for 2026 given the PFI cycle across older districts — the window sub trades alone can consume 6–8 weeks of a 16–24 week renovation programme. Your contract should sequence window works at the front of the critical path, not as a “to order later” item.