Buying a Resale Flat in Bangalore? Check for Damp First

You have found a resale flat or independent house you like. The location works, the price is close, the owner is keen to close. Then you notice fresh paint in one corner of the bedroom, and nobody can explain why. Damp is one of the most common hidden costs in a resale property, and it is far easier to deal with before you sign than after you move in.

Why a damp check belongs in your buying checklist

Most buyers check the title, the khata, the tax receipts and the loan paperwork. All of that matters. But none of it tells you whether the terrace leaks or whether a bathroom wall has been quietly soaking the bedroom behind it. Sellers rarely volunteer it, and many simply repaint before showing the property, which hides the evidence for a few weeks.

Visit after the monsoon, not before

If you can choose your timing, view the property in the weeks after heavy rain. Water has had its chance to find every weak point, and stains are at their most visible. A summer visit can make a leaking home look perfectly dry.

What to look for inside the home

• Ceilings. Look for yellow or brown rings, hairline cracks that follow a line, and patches where the paint is a slightly different shade. Top-floor flats deserve the most attention, since the terrace is directly above.
• Wall bases and corners. Powdery white salt deposits, bubbling paint and a tide mark low on the wall point to moisture working its way through the masonry. Our guide on efflorescence and peeling paint explains what the white powder means.
• Bathroom walls. Check the wall on the other side of every bathroom, which is usually a bedroom, passage or kitchen. Staining there often signals a leak from a pipe or a failed bathroom floor.
• Cupboards and wardrobes. Open the ones fixed to external walls and smell them. A musty smell inside a built-in wardrobe is a reliable clue, as covered in damp smell in wardrobes.

What to look for outside and on the terrace

Ask to go up to the terrace, even if the seller says nothing is wrong. Look for four things. First, standing water or green algae patches, which mean the slope is poor or drains are blocked. Second, cracked tile joints. Third, the parapet base, where many terrace leaks begin (parapet wall base leaks). Fourth, the outlet and downpipe, which should be clear and free flowing. See terrace drain blockage.

Walk the exterior too, checking window surrounds, sunshades and the plinth. In an apartment, ask whether the common terrace has ever leaked.

Questions to ask the seller

1. When was the property last painted, and why? A fresh coat is not a red flag by itself, but a vague answer is.
2. Has any waterproofing been done, and by whom? Ask for the invoice, the date and any written warranty.
3. Have there been leaks from the flat above? See ceiling leaks from the flat above.

Reading what you find

Not every stain is a deal breaker. A small, old, dry ceiling mark with a known, fixed cause is very different from a wet wall that is still spreading. What matters is whether the source has been found and stopped. Damp that is active, repeated or in several rooms usually means a bigger repair, and that is your negotiating position.

Wide, stepped cracks are a different category. Our guide on hairline versus structural cracks helps you tell them apart. Have a structural engineer check anything that looks structural.

Get an inspection before the agreement, not after

If something looks doubtful, do not let the seller's timeline rush you. An inspection is a short visit, and it beats discovering a leaking terrace in your first monsoon. Ask the inspector to separate what is urgent, what can wait a season, and what is cosmetic.

Where LoklFix fits

We inspect terraces, walls, bathrooms and tanks, and tell you plainly what we see. About to buy? We can visit this week, before you pay the token amount.

Frequently asked questions