Snagging and Handover for New Town Flats: What to Check Before You Pay
Every year we get calls from families in New Town who've just been handed the keys to a new flat and something feels off, a hairline crack near the balcony door, a bathroom tile that rings hollow when you tap it, an AC point that's twelve inches from where the drawing showed it. Most of the time it's nothing that a proper punch list couldn't have caught before the final cheque cleared, and that's really the whole point of this piece, right, snagging isn't paranoia, it's just due diligence before you hand over money you can't easily get back.
New Town has thrown up buildings fast over the last decade, Action Area I, II and III have all seen dense G+3 and G+4 construction, and the pace means quality control varies a lot between builders and even between towers from the same developer. We've walked through enough handovers across New Town to know the defects repeat themselves, so this piece is basically our field notes, what to check, in what order, and what's worth walking away over versus what's a five-minute fix.
We're Studio Contour, an architecture and interior design studio based in New Town since 2014, and we've delivered over 330 buildings across New Town and Salt Lake at this point, so snagging isn't a one-off exercise for us, it's something our site teams do on every project before we sign off internally, and it's the same rigour we bring when a homeowner asks us to walk a flat with them before their own handover.
Room by Room: The Technical Snag List We Actually Run
Structure and walls come first, before you even look at finishes, because a crack in plaster can mean two completely different things and most buyers can't tell which one they're looking at. A hairline crack running diagonally from a window or door corner, thinner than the edge of a rupee coin, is usually just plaster shrinkage as the building settles, and it's cosmetic, a five-minute fix with crack filler and touch-up paint. What worries us is a crack running horizontally along a beam-column junction, or one that's wider at one end than the other, or one you can slide a fingernail into, because that can point to structural movement, poor curing, or a construction joint that wasn't tied in properly. On a G+4 New Town building this matters more than people assume, since these towers haven't had the decades of settling that older Kolkata structures have gone through, so we walk every external wall, every internal load-bearing wall, and the underside of balcony slabs specifically looking for this distinction, and we photograph and date-stamp anything borderline so there's a record if it reopens after the first monsoon.
Waterproofing is where New Town flats fail the most, and it's almost never visible on handover day, which is exactly why it gets missed. Bathrooms, balconies, the utility area if there is one, and the terrace slab if it's a top-floor unit all need a water test, not a visual check, and the way we run it is simple, we plug the floor drain, flood the area with about half an inch of water, and leave it for 24 to 48 hours while watching the ceiling of the flat below or, on ground-contact slabs, the underside from outside. A dry ceiling after two days is the only real proof the membrane is intact, because a floor that looks fine and tiles that look fine can still sit on waterproofing that was skipped or punctured during tiling work, and that's a defect that costs lakhs to fix once someone's living above a finished ceiling and doesn't want it opened up. We also check the slope of every wet-area floor toward the drain with a marble or a level, because a flat floor or one that pools water at the door threshold means someone will be squeegeeing water for the next fifteen years.
Electrical points need a load test, not a visual count, because a builder's electrician can install the right number of switches and sockets in the right places and still leave you with wiring that trips under real use. We test every 16A socket meant for an AC or geyser by actually running a load through it, not just checking continuity with a tester pen, and we confirm the MCB distribution board is labelled correctly, because we've seen boards where the kitchen circuit and the bedroom AC circuit are swapped on the label, which becomes a genuine problem the day an electrician needs to isolate one room during a repair. Earthing is the other thing people skip entirely, and it's worth asking the builder for the earth resistance test report specifically, since a flat can pass every visual electrical check and still have earthing that doesn't meet the 5-ohm-or-under standard that protects you if an appliance develops a fault.
Doors, windows, and hardware get judged on function, not just fit, because a door that looks aligned in a photo can still be catching on the frame, and a window that closes can still be letting in monsoon spray through a gap in the rubber gasket. We open and close every door and window in the flat, check that locks engage without forcing, that hinges aren't already showing play, and that sliding windows run smoothly on their track rather than needing a shoulder to shift. UPVC windows, which most New Town builders now use, are usually fine on the glass and frame but the weak point is almost always the gasket seal at the corners, so we run a hand along every seam feeling for gaps you can't always see. Balcony grilles and railings get a physical push test too, not a glance, because a railing that's cosmetically bolted but not properly anchored into the slab is a safety issue, not a snag list item, and it's the kind of thing that only shows up when someone actually leans on it.
Finishes are what buyers notice first and what we check last, on purpose, because a hollow-sounding tile or a paint patch is real money but it's rarely urgent, and chasing finish defects before structure and waterproofing means missing the things that actually matter. That said, we do the tile-tap test across every floor with a coin or a small hammer, marking any tile that sounds hollow since a debonded tile eventually cracks or lifts, and we check grout lines for consistency because uneven grout widths are usually a sign of rushed laying. Paint gets checked in daylight, not under the builder's site lighting, since colour mismatches between touch-up patches and the original coat are far more visible near a window than under a bulb. The catch here is that finish defects are the easiest ones for a builder to promise and the easiest ones to quietly deprioritise once you've paid, so even though they're low-stakes individually, they belong on the same written punch list as the structural items, with the same completion dates attached.
| Check Area | What We Test | Red Flag |
|---|---|---|
| Structure | Visual crack inspection at beam-column joints | Horizontal or widening crack you can fit a fingernail into |
| Waterproofing | 24-48hr flood test on wet areas and terrace | Damp patch on ceiling below after test |
| Electrical | Load test on 16A points + earth resistance report | MCB labels mismatched or earthing above 5 ohms |
| Doors/Windows | Physical open-close-lock cycle + gasket seam check | Sticking hardware or gaps in window seals |
| Finishes | Tile-tap test + daylight paint check | Hollow sound on tap or visible patch mismatch |
The Payment Holdback Nobody Tells You to Negotiate
Here's the part that almost nobody in New Town negotiates properly, and it's the single lever that actually gets defects fixed after handover instead of promised and forgotten, which is holding back a slice of the final payment until the punch list is cleared, not before. Most buyers treat the handover date like a hard deadline where the full and final cheque has to clear that day or the builder's team starts making noise about registration delays, possession certificates, or maintenance charges piling up, and under that pressure people sign off on a flat with eleven open items on a list because the alternative feels worse. The catch here is that once the last rupee has moved, your leverage moves with it, and a builder who was responsive during construction can turn considerably slower once there's nothing left for you to withhold, so the fix isn't to refuse payment entirely, it's to structure it so a defined percentage, say 3 to 5 percent of the flat value, sits in an agreed holdback until the snag list is closed out and re-inspected.
This is something we push clients toward on every handover we're involved in, because we've watched the alternative play out too many times, a family pays in full on possession day, gets a verbal promise that the hollow tile and the leaking spot near the balcony drain will be sorted "within the week," and eight months later they're still calling the site office. A written holdback clause, even a simple one added as an addendum to the sale agreement or noted in the final payment receipt, converts that verbal promise into something with actual teeth, because now the builder has a financial reason to close the list quickly rather than letting it drift. For flats bought through a builder-buyer agreement, this can usually be built in at the agreement stage itself, and for resale or possession-stage negotiations it can still be raised as a condition attached to the final disbursement, particularly on New Town projects where the builder still has other towers or phases to sell and cares about their name with NKDA and with future buyers in the same Action Area.
The mechanics matter more than people expect, right, because a holdback only works if it's specific about three things, the amount, the trigger for release, and who decides the trigger has been met. Vague language like "balance payable on satisfactory completion" gives the builder room to call a half-fixed defect satisfactory, so we tell clients to attach the actual snag list as a schedule to the agreement, with each item marked against a completion date, and to name a re-inspection, either by the buyer, an appointed engineer, or in our case, our own site team walking the flat a second time, as the condition that releases the balance. Banks financing the purchase are usually fine accommodating this too, since a holdback of a few percent doesn't affect loan disbursement timelines, it just changes what portion of your own contribution moves last.
- Fix the holdback percentage in writing before possession day, not verbally
- Attach the actual snag list as a schedule to the payment agreement
- Name who conducts the re-inspection and by what date
- Confirm the release trigger is item-by-item sign-off, not a vague "satisfactory completion" clause
- Keep the holdback separate from registration and stamp duty amounts, which still need to be paid on schedule
The one thing we'd caution against is treating the holdback as a substitute for a proper inspection in the first place, because withheld money only helps if there's a documented list behind it, and builders in New Town have gotten used to buyers who never formalise anything beyond a WhatsApp message with photos. At the end of the day, a holdback clause costs you nothing to ask for and takes maybe twenty minutes to draft properly, and it's the difference between a snag list that gets closed in three weeks because there's money attached to it, and one that quietly becomes your problem the day after you've paid in full.