First-Time Renovation in Singapore: Full Guide

Renovating for the first time feels chaotic because everything seems to happen at once. It is easier as five ordered steps, each of which has a detailed guide of its own.

Step 1 — Set a budget you can trust

Start from a realistic range, not a dream number. Use the illustrative ranges in the HDB renovation cost guide — for example, about S$50,000–S$60,000 for a 4-room BTO full renovation — then add a 10–20% buffer for variation orders and surprises. The renovation budget calculator totals these for your flat type in a few taps. Remember that furniture and appliances are usually separate, often another S$10,000–S$30,000.

Card listing the five steps of a first-time renovation

The first-time renovation roadmap in five steps.

Step 2 — Learn the rules before you design

Two HDB rules shape what is possible. You must hire a contractor from the Directory of Renovation Contractors (DRC), and you need HDB’s written approval before any wall is hacked. Read the HDB renovation permit guide and the hacking and wall rules early — they can rule out a layout idea before you fall in love with it.

Step 3 — Choose the right kind of firm

Decide whether you want an interior designer (design plus full coordination, higher cost) or a contractor (you coordinate, lower cost) — the ID vs contractor guide walks through the trade-off. Then vet whoever you shortlist: verify the DRC listing, prefer CaseTrust accreditation, and compare at least three itemised quotes, as set out in how to choose a renovation firm.

Step 4 — Arrange the money

If you are borrowing, several Singapore banks currently offer renovation loans of up to the lower of 6× monthly income or S$30,000, commonly for up to five years, subject to the lender’s eligibility and credit assessment — details in the renovation loan guide, and you can size the monthly instalment with the renovation loan calculator. The loan’s monthly instalment may also count toward your TDSR if you later apply for a property loan. Because most renovations cost more than this, plan to fund the balance from cash and keep your buffer intact.

Step 5 — Plan a realistic timeline

An end-to-end HDB renovation often takes about 8–11 weeks or longer depending on scope, a little longer for an older resale flat. Separately, HDB’s permit period limits on-site works to 3 months for newly completed blocks and 1 month for existing blocks from the permit date (window works: 2 weeks) — ask your contractor to confirm whether an extension is needed. Build in lead time for permit approval and material orders, and remember that noisy works (wall demolition, removal of wall/floor finishes, tile cutting, heavy drilling) are limited to weekdays 9am–5pm — so the demolition phase cannot be rushed through a weekend.

Stage	Rough duration
Design, quote comparison & approvals	allow several weeks; complex submissions may take longer
Wall demolition / removal of wall/floor finishes	max 3 consecutive days (noisy)
Carpentry, tiling, electrical	several weeks
Painting, finishing, handover	final 1–2 weeks

Durations are indicative; your schedule depends on scope and your flat.

General information only. Confirm current rules and figures with HDB and your contractor before you commit.