Buying a Resale HDB? Check These 7 Things Before You Budget the Renovation

A resale flat viewing is designed to sell you the good bits. The sunlight, the view, the fresh coat of paint. The things that blow up a renovation budget are usually hiding behind that paint.

Here's what we'd look at before you decide how much to set aside.

1. Ceiling stains in the bathroom and kitchen

Look up. Brown rings or bubbling paint on the ceiling usually mean water coming from the flat above. It can be sorted, but it takes time and a conversation with your neighbour, and you want it fixed before your new ceiling goes in, not after.

2. The bathroom floor

In an older flat, the waterproofing under the bathroom tiles is as old as the tiles. If you plan to hack and retile, HDB requires new waterproofing screed and membrane anyway, so budget for it from the start. If the current tiles are fine, overlaying may be enough. That's a big cost difference, so know which one you're doing.

3. The electrical box and power points

Open the distribution board. Count the power points in each room. Older flats were wired for a household with one TV and a rice cooker, not two work-from-home setups, an induction hob and three air-conditioners. Rewiring is common in resale renovations and it's much cheaper to do before carpentry and ceilings go up.

4. Hollow tiles

Tap the floor tiles with a coin or your knuckle as you walk around. A hollow sound means the tile has come loose from the screed underneath. A few is normal. Whole patches mean you may be redoing the floor whether you planned to or not.

5. Windows

Open and close every window. Check for rust, loose frames and missing or corroded rivets. Owners are responsible for their own windows, and any window replacement has to be done by a BCA-approved window contractor. It's a separate line in your budget that people often forget.

6. Which walls are structural

If your dream layout involves knocking down a wall, find out before you commit to the flat. Structural walls and the household shelter can't be removed under any circumstances. A layout you can't build isn't a plan.

7. What the previous owner did without approval

Some resale flats come with extras that were never approved. Unauthorised works can become your problem, because HDB can require them to be reinstated. If something looks unusual, like a relocated wall or a raised floor, ask the seller for the permit.

How much buffer to keep

A common rule of thumb is to hold back 10% to 15% of your renovation budget as contingency on a resale flat. Treat that as a starting point, not a guarantee. A flat with ceiling stains, hollow tiles and original wiring deserves more. A recently renovated one may need less.

The best time to find these things is before the quote is signed. Every surprise found after hacking becomes a variation order, and those rarely come cheap.

Got your eye on a resale flat?

Share the floor plan and your key collection date on our enquiry page, or WhatsApp us. We'll help you work out a realistic budget before surprises do it for you.