How to inspect a 3-room BTO before Singapore renovation?

Inspect before you renovate, because a BTO comes with a 3-year defect liability period that lets HDB fix faults free. A Singapore HDB Renovation Guide Singapore for a 3-room BTO living and dining area says a careful check saves thousands and shapes your plan. I will give a step-by-step 5-step process and realistic cost ranges so you start on solid ground.

Why inspection comes first

A 3-room BTO renovation typically runs S$25,000 to S$38,000, and carpentry alone often lands at S$8,000 to S$20,000. If you renovate over hidden defects, you pay twice: once to build, once to repair. The defect period is your free repair window, so use it. Hacking the toilet floor tiles early can void waterproofing, and HDB approval is needed for any toilet renovation, so the living and dining check is where you begin.

Step 1: walk every surface for hollow sounds

Tap floor and wall tiles with a coin. A hollow, dull note means a poor bond that will crack. Mark each spot. These are HDB's responsibility during the defect period, so report them before any renovation permit goes through e-Services.

Step 2: check flooring for unevenness

Use a straight edge or marble on the living and dining floor. A rolling marble or a visible gap shows an uneven slab. Note it, because your overlay flooring or carpentry plinth must sit flush later. Fixing it now is free under defect cover.

Step 3: test doors, windows, and power

Open every door for alignment, and check window aluminium rivets, which HDB requires to be sound by law. Test each power point with a tester; faulty points are a common defect. Since HDB caps certain electrical points, you also learn what you have before planning upgrades.

Step 4: look for water and seepage

Check ceilings and walls for stains or damp smell, signs of water seepage from above or within. Also check wardrobe alignment if any pre-fitted. Report seepage early, because it spreads and becomes your cost once you renovate over it.

Step 5: log, report, and plan around it

Write a dated list with photos and submit it through the BTO defect channel. Wait for HDB's fix, then hand your contractor a clean slate. Only then finalise drawings with an HDB-registered, ideally CaseTrust-accredited firm with Renovation Continuity Insurance.

Realistic cost ranges

• Full 3-room BTO renovation: S$25,000 to S$38,000.
• Carpentry (wardrobes, cabinets, TV feature): S$8,000 to S$20,000.
• Overlay flooring for living and dining: a few thousand, depending on area.
• Lighting and smart switches: modest, within HDB's allowed points.
• Defect fixes from HDB: S$0 during the 3-year period.

Common questions

Can I renovate during the defect period? You can, but fix defects first so you do not build over faults.

Who pays for hollow tiles? HDB does, within the 3-year defect liability period.

Do I need a registered contractor? Yes, for regulated works, submitted via HDB e-Services.

A 3-room BTO rewards patience. Inspect in five clear steps, let HDB fix faults free, then renovate on a clean base, and your S$25,000 to S$38,000 buys finish, not repair. The check is the cheapest insurance your renovation can have.