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Renovation cost calculator

Build a planning budget before speaking with an interior designer. Calculate for free without entering your contact details.

This calculator provides an estimate for planning purposes only. Use it as a guide, not a quotation or guaranteed price. Actual costs depend on your home, scope of work, materials and chosen firm. Confirm GST and all inclusions with your interior designer; no GST is added automatically.

2. Choose rooms & renovation work

Build an HDB work budget from the items you select. Tick to add, untick to remove, then enter your quantities. Each price is a planning midpoint of our researched range, not a measured market median or a quotation.

A foot run measures length: 1 metre ≈ 3.28 ft. For flooring, 1 m² ≈ 10.76 sq ft. Enter the area being worked on, not the whole home's area.

Kitchen

Cabinet carcass, doors and laminate finish. Count the base run only; countertop, wall cabinets, appliances and removal are separate.

S$150.00 / ft run · planning midpoint

Not selected

Overhead cabinets only. Measure separately from base cabinets. Tall pantry units, specialist hardware and removal need separate allowances.

S$140.00 / ft run · planning midpoint

Not selected

Standard worktop length. Confirm depth, edges, cut-outs and installation details; cabinets, backsplash and appliances are separate.

S$140.00 / ft run · planning midpoint

Not selected
Bedrooms

Laminate wardrobe allowance. Add widths across bedrooms; confirm height, internal fittings and hardware. Premium finishes cost extra.

S$310.00 / ft run · planning midpoint

Not selected
Living, dining & entry

Built-in entry storage allowance. Confirm height, depth and internal fittings. Loose furniture is separate.

S$180.00 / ft run · planning midpoint

Not selected

Combined console and feature-wall allowance. Measure the planned run once; TV, sound system and electrical points are separate.

S$250.00 / ft run · planning midpoint

Not selected
Whole-home finishes

Supply and installation for the dry-floor area you enter. Excludes bathroom work, hacking and levelling; confirm skirting, wastage and minimum charges.

S$6.15 / sq ft · planning midpoint

Not selected

One whole-flat painting allowance. Confirm ceiling coverage, paint specification and preparation. Major plaster repairs and decorative finishes are separate.

S$2,500.00 / flat · planning midpoint

Not selected
Bathrooms

Broad bathroom renovation allowance. Confirm hacking, waterproofing, tiling, plumbing and fittings in the quote. Do not add these same bathroom works again elsewhere.

S$8,750.00 / bathroom · planning midpoint

Not selected
Electrical

Standard 13A double sockets with surface wiring. Count only extra points outside any included package; excludes rewiring, DB upgrades and concealed wiring.

S$105.00 / point · planning midpoint

Not selected
3. Add other work or purchases

Enter your own lower and upper allowance for work not priced above; we use their midpoint. For a fixed allowance, enter the same amount in both fields. Leave unticked to exclude. These amounts are added once; do not repeat anything already included in another item.

Selected items only — check what's missing

Unselected work is excluded, not free. Confirm removal, disposal, floor preparation, waterproofing, plumbing, electrical capacity, minimum charges, design fees and approvals with your firm. Bathroom allowances can overlap with tiling, plumbing and hacking: count the same work only once. Condo and landed projects, structural work and extensive alterations need a project-specific quotation.

Tax treatment and package inclusions vary. No GST is added automatically; ask for a final quotation with GST clearly stated.

Work-item budgets use only the items you select. Whole-home overviews use one broad range and cannot be broken into guaranteed inclusions or savings.

Using your own estimate? Enter these details

Required only for the own-estimate option. Use a contractor's range or your own working budget. The calculator does not invent a price for an unsupported scope.

How to use this estimate

Compare quotations for the same scope and specifications. Floor area, condition, retained finishes, layout changes and materials can move the actual cost above or below this estimate. Confirm all inclusions with your chosen firm.

Read our renovation budgeting guide or explore AI concepts with Design My Home.

Disclaimer: All figures are indicative estimates to help you plan your renovation budget. They are not a quotation, offer or guarantee of final costs. Please obtain a detailed quotation based on your property and renovation requirements before making a decision.