The cost of rebuilding a landed house in Singapore in 2026 runs from about S$1.5 million for a tear-down-and-rebuild of a typical 3,000 sq ft inter-terrace, and climbs past S$3 million once you add a basement, premium finishes and a higher specification. Construction alone sits at roughly S$400 to S$800 per square foot for a standard build, but the number on your contractor's quote is never the number you pay. Demolition, the architect, the qualified person, structural engineers, URA and BCA submissions, the 9% GST and a contingency buffer all stack on top. Here is how each line item actually adds up, checked against contractor rate cards and the official URA and BCA fee schedules as of June 2026.
A full rebuild means demolishing the existing house down to the ground and erecting a new structure. In planning terms this is either a new erection (clearing the plot entirely) or a reconstruction (rebuilding while keeping a small qualifying portion of the old structure). Both are far more involved than a renovation, and both pull in the same regulators.
The headline construction rate as of June 2026 is roughly S$400 to S$800 per square foot of built-up area for a standard-to-mid specification, rising to S$800 to S$1,200-plus PSF for premium builds with imported finishes, a lift, smart-home wiring and a pool. That PSF figure covers the contractor's structure, roofing, mechanical and electrical works and basic finishes. It does not include the soft costs that every owner underestimates.
Take a 3,000 sq ft built-up inter-terrace at S$500 PSF. Construction is S$1.5 million. Layer on demolition, a 10% professional fee, regulatory charges, GST and a contingency, and the all-in budget lands closer to S$1.9 to S$2.1 million. A detached house of 4,000 to 5,000 sq ft with a basement routinely clears S$3 million all-in. Spreading the same floor area across more storeys also costs more than spreading it wider, because each level adds structure, stairs and services.
| Specification | Construction PSF | Construction cost | Soft costs + GST + contingency | Indicative all-in |
|---|---|---|---|---|
| Standard / basic finish | ~S$400-500 PSF | S$1.2M-1.5M | + ~S$0.4M-0.5M | ~S$1.6M-2.0M |
| Mid-range finish | ~S$550-700 PSF | S$1.65M-2.1M | + ~S$0.5M-0.7M | ~S$2.2M-2.8M |
| Premium / luxury + basement | ~S$800-1,200+ PSF | S$2.4M-3.6M+ | + ~S$0.7M-1.1M | ~S$3.1M-4.7M+ |
Before a single new beam goes up, the old house has to come down. Demolition of a typical landed home runs from around S$15,000 for a simple single-storey clear-out to S$80,000 to S$200,000 for a larger two- or three-storey house where party walls are shared with neighbours and debris removal is tightly controlled.
The wide range reflects access. A corner terrace with road frontage is cheap to clear. An inter-terrace squeezed between two occupied homes needs hoarding, protective screens and slower hand-demolition near the party walls, which a careful contractor will quote for honestly. Site preparation, hoarding, temporary utilities and tree works can add another five figures depending on the plot.
You cannot lodge a rebuild yourself. Under the Building Control Act, a qualified person, a registered architect or professional engineer, must prepare and submit the plans to URA and BCA and supervise the works. This is a statutory requirement, not an optional design upgrade. Their fee is one of the larger soft costs on the project.
Architectural fees sit at roughly 8% to 12% of construction cost as of June 2026. Structural and mechanical and electrical engineering add another 2% to 4%, and a separately engaged project manager (if you use one rather than a design-and-build firm) adds 3% to 5%. On a S$1.5 million construction budget, a 10% architect fee alone is S$150,000.
Design-and-build firms bundle these roles and can look cheaper on paper, but read the scope. A lower percentage that excludes the structural engineer or caps site visits can cost more once variations and resubmissions pile up. If you are weighing how to choose between firms, the same diligence that applies to a renovation contractor applies here, only with far more zeros, so it is worth reading how to vet a building firm before signing.
Government fees on a rebuild are smaller than people fear, but the consultancy time to prepare clean submissions is not. URA planning permission for a landed new erection or reconstruction is charged per the URA Development Control fee schedule and commonly works out to around S$6,000 to S$7,000 inclusive of GST for a single house, higher for larger or more complex proposals.
BCA building plan and structural plan fees are computed from the statistical gross floor area under the Building Control Regulations, so they scale with the size of the house rather than a flat rate. On top of the agency fees, budget S$10,000 to S$25,000 for your consultants to prepare drawings, coordinate with the agencies and handle any resubmission if conditions are imposed.
Reconstructions that meet URA's lodgment criteria can use a streamlined plan-lodgment route instead of a full planning application, which shortens approval time. Either way you will still face development or drainage-related charges in some cases, plus utility connection and power-supply upgrade costs that range from S$5,000 to S$20,000 depending on the load of your new home.
GST is now 9% and it applies to the construction contract and most professional fees, so it is not a rounding error. On a S$1.5 million build with S$200,000 of fees, that is roughly S$150,000 in tax alone. Always confirm whether a contractor's quote is GST-inclusive before you compare two bids, because one firm quoting before tax and another after tax can look misleadingly different.
A contingency of 10% to 15% of construction cost is not padding, it is the buffer that absorbs the unforeseen: harder soil that needs deeper piling, a mid-build change you decide you cannot live without, an imported finish that gets stuck at the port, or a variation the authorities ask for. Owners who skip the contingency are the ones who end up scrambling for cash near the end of the build.
The everyday hidden costs add up too: soil investigation, condition surveys of neighbouring homes, temporary accommodation if you are moving out for 12 to 18 months, insurance during construction, and landscaping, which can run anywhere from S$30,000 to well past S$150,000 for a mature garden and pool surround. None of these appear on the headline PSF rate. Tracking the full outflow against your reserves matters here, and a quick pass through your net-worth picture before committing keeps the project from quietly draining your liquidity.
A full rebuild is not always the smart money move. Additions and alterations, where you keep the existing structure and modify it, can deliver a near-new home for less if the bones of the house are sound. A&A rates run around S$250 to S$500 PSF, below a full reconstruction, because you avoid demolishing and re-piling the whole structure.
The trade-off is regulatory. A&A work is capped: under URA controls you generally cannot increase the previously approved gross floor area by more than 50%, you cannot remove or replace more than half the external walls, and you cannot add storeys under the roof through A&A alone. If your wish list breaks those limits, you are functionally doing a reconstruction whether you call it that or not, and the cost converges with a full rebuild.
The honest test: if the existing layout, ceiling heights and structure already suit you and you mainly want to refresh and extend, A&A wins on cost. If you want a fundamentally different house, a different footprint, an extra storey, a basement, then a clean rebuild is usually better value than fighting the constraints of the old structure.
| Factor | Full rebuild (new erection / reconstruction) | A&A (additions & alterations) |
|---|---|---|
| Typical PSF | S$400-S$800+ PSF | S$250-S$500 PSF |
| GFA change | Up to plot's full allowable GFA | Generally capped at +50% of approved GFA |
| External walls | All new | Cannot replace more than ~50% |
| Extra storeys | Yes, within envelope controls | Not via A&A alone |
| Best when | You want a different house | Existing structure is sound and suits you |
Most owners cannot pay S$2 million in cash, so a construction loan bridges the build. Banks such as OCBC, DBS and UOB finance the demolition-and-reconstruction of a landed property, and OCBC's construction loan, for example, finances up to 75% of construction costs including professional fees and survey costs, disbursed progressively as each stage of the build completes.
Progressive disbursement is the key feature. The bank releases tranches against verified milestones, you pay interest only on the amount drawn during the roughly 12 to 18-month construction phase, and on completion the facility converts to a normal home loan with full principal-and-interest repayments. Because it is property financing, it sits under MAS rules: the 75% loan-to-value cap and the Total Debt Servicing Ratio limit apply, so your other debts shape how much you can borrow.
Whether you fix or float the rate over the build and the years after matters for a loan this size, and the trade-offs are the same ones covered in our fixed vs floating mortgage comparison. Before you commit, model the post-completion repayment, not just the cheap interest-only construction phase, using a mortgage repayment calculator so the monthly figure after TOP does not catch you off guard.
Budget roughly S$1.5 million to S$2.1 million all-in for a standard rebuild of a typical 3,000 sq ft inter-terrace, and S$3 million-plus for a larger detached house with premium finishes and a basement. Construction alone is about S$400 to S$800 per square foot before demolition, fees, GST and contingency.
A&A is the cheapest at roughly S$250 to S$500 per square foot if the existing structure is sound, because you avoid demolition and re-piling. A full rebuild costs more but makes sense when you want a different footprint, an extra storey or a basement that A&A rules will not allow, since A&A is capped at about a 50% GFA increase.
Yes. The Building Control Act requires a qualified person, a registered architect or professional engineer, to prepare and submit plans to URA and BCA and supervise the works. You cannot lodge a rebuild yourself. Architect fees run about 8% to 12% of construction cost, with engineers adding another 2% to 4%.
Plan for roughly 18 to 24 months end to end: about 6 to 9 months for design and regulatory approval, then 12 to 15 months of construction. You will usually need to move out and rent elsewhere for the live build, which is a recurring cost worth budgeting alongside the construction itself.
This is general financial information for Singapore, not personal financial advice. Figures change — verify current rates against the official sources above before acting. See our full disclaimer.