14 Sep 2026 · 2 min read · UrbanNest360 team
Under construction or ready to move: which one should you buy?
Under-construction flats cost less on paper. Ready flats cost less in surprises. Here's how to decide.

It's usually the first fork in the road. An under-construction flat looks cheaper and comes with a payment plan. A ready flat costs more but you can walk through it today. Neither is the right answer for everyone.
The case for under construction
- Lower price. Launch prices are often 10–20% below what the same flat sells for at completion.
- Staggered payments. You pay in stages as the building goes up, not all at once.
- Better choice. Early on, you can pick the floor, the facing and the unit you want.
The case for ready to move
- What you see is what you get. The flat, the view and the neighbours are already there.
- No GST. A flat with an Occupancy Certificate doesn't attract the 5% GST that under-construction flats do. On ₹1 crore, that's ₹5 lakh.
- No double payments. You don't pay rent and an EMI at the same time while you wait.
- No delay risk. The building is finished.
The real question: can you afford a delay?
Most of the risk in an under-construction flat comes down to timing. Projects slip. A year's delay is common, and some run far longer.
While you wait, you may be paying rent and a pre-EMI (interest on the loan amount already released) at the same time. Over two years, that can wipe out the discount you got for buying early.
RERA helps. Builders have to register the project, state a completion date and pay interest if they miss it. But getting that compensation can take time, and it doesn't give you a home to live in.
How we'd decide
Under construction makes sense if:
- you don't need to move in for 3–4 years
- the builder has a record of delivering on time, and you've checked it
- you can comfortably carry rent and pre-EMI together if it runs late
Ready to move makes sense if:
- you need the home within a year
- you're stretching your budget and can't absorb a delay
- you want to see exactly what you're getting
Before you buy either
For a ready flat, ask for the Occupancy Certificate and check that it covers your tower. Some buildings are handed over without one. For an under-construction flat, look up the RERA registration and the builder's past completion dates, not just their brochures.
Not sure which way to go? Tell us your timeline and budget and we'll show you what fits in both.