How to Budget for a Home Renovation

To budget for a home renovation in Singapore, start with a realistic total based on your home type and how much you want to change, then split that figure across the big cost drivers: carpentry, flooring, electrical, plumbing, tiling, painting and hacking. Set aside a contingency of around 10 to 15 percent for surprises, and always compare itemised quotes rather than a single lump sum. A light refresh of a resale HDB flat can land in the low tens of thousands, while a full overhaul of a larger flat or condo often runs well into six figures.

The exact number depends on your flat size, whether it is new or resale, the materials you pick, and how much structural work is involved. Rather than chasing one magic figure, the goal is to build a budget that reflects your real priorities and leaves room to absorb the costs that always creep in once work begins.

How much does a home renovation cost in Singapore?

There is no single answer, but a few broad bands help you sanity check quotes. A resale flat usually costs more to renovate than a new BTO because you often pay to hack and redo existing work. Materials, brand of fittings, and the amount of built-in carpentry swing the total more than almost anything else.

As a rough guide, a modest refresh of a smaller HDB flat can start in the region of twenty to forty thousand dollars, a mid range renovation of a typical resale flat often falls somewhere between forty and eighty thousand, and extensive work on a large flat or condo can pass one hundred thousand. Treat these as starting points for conversation, not fixed prices.

How should I split my renovation budget?

Breaking the total into categories makes it far easier to see where money goes and where you can cut. Carpentry, especially kitchen and wardrobe cabinets, is usually the single largest line item, often a third or more of the total.

A workable rough split for a typical flat looks like this:

• Carpentry and built-ins: often the biggest share, sometimes 30 to 40 percent
• Flooring and tiling: a significant chunk, especially if you retile wet areas
• Electrical and lighting: rewiring, new points, and light fittings
• Plumbing and sanitary ware: taps, pipes, toilets and basins
• Hacking and masonry: removing walls, structures and old finishes
• Painting: comparatively small but visible everywhere
• Miscellaneous and permits: haulage, cleaning, HDB permit fees

Why do I need a contingency buffer?

Renovations almost always uncover surprises once work starts: hidden water damage, old wiring that fails inspection, uneven floors, or a fitting you thought you liked but want to change. A contingency fund keeps these from derailing the whole project or forcing you to stop halfway.

A sensible buffer is around 10 to 15 percent of your total budget, held separately and not counted as spending money. For older resale flats where more is hidden behind walls, lean toward the higher end. If you do not use it, you simply keep the cash.

What hidden costs should I plan for?

Many homeowners budget only for the visible build and then get caught out by the extras. These are real costs that belong in the plan from day one.

Common items that people forget include:

• HDB renovation permit and any required professional endorsement
• Debris disposal and haulage, which contractors may charge separately
• Post renovation cleaning before you move in
• Temporary accommodation or storage if you cannot live on site
• Furniture, appliances, curtains and lighting not covered by the contractor
• GST on quoted amounts where the contractor is GST registered

How do I get accurate quotes and control the cost?

The most reliable way to budget is to get detailed, itemised quotes from a few reputable contractors and compare them line by line. A quote that lists each task, material and quantity is far more useful than a single lump sum, because it shows you exactly what you are paying for and where two firms differ.

When you are ready to get renovation, electrical or plumbing work done, ask for a clear breakdown of pricing so you can match the scope to your budget, question anything that looks off, and decide where to spend and where to save. A transparent contractor should be happy to walk you through every line and explain how the numbers were reached before you commit.

How can I save money without cutting corners?

Saving well is about choosing where quality matters and where it does not, rather than shaving a little off everything. Spend on the things that are hard or expensive to change later, and economise on items you can upgrade cheaply down the line.

Practical ways to trim the budget:

• Keep existing layouts where possible to avoid heavy hacking and plumbing moves
• Reuse or refresh serviceable items instead of replacing everything
• Choose mid range materials for high wear areas and save premium picks for feature spots
• Buy loose furniture and appliances yourself rather than through the contractor
• Renovate in phases if cash flow is tight, tackling essentials first

Frequently asked questions

How much should I set aside as a renovation buffer? Aim for around 10 to 15 percent of your total budget as a contingency, kept separate from your main spend. Older resale flats hide more surprises, so lean toward the higher end of that range.

Is it cheaper to renovate a BTO or a resale flat? A new BTO is usually cheaper to renovate because you are not paying to hack and redo existing work. Resale flats often need more demolition, rewiring and replacement, which pushes the cost up.

What is usually the most expensive part of a renovation? Carpentry, particularly kitchen cabinets and wardrobes, is typically the single largest line item and can take up a third or more of the total. Reducing custom built-ins is one of the fastest ways to cut cost.

Should I accept a lump sum quote or an itemised one? Always prefer an itemised quote that lists each task, material and quantity. It lets you compare contractors fairly, spot padding, and decide clearly where to spend and where to save.