What the sticker price hides
A flat advertised at ₹80 lakh does not cost ₹80 lakh. By the time you get the keys it is closer to ₹96 lakh. And the cash you need on day one is not just the ₹16 lakh upfront payment either.
None of these costs is secret. They are quoted separately, at different times, by different people, so they are easy to miss.
The gap, on a ₹80 lakh flat
Interiors are the cost people most often forget, and after the flat itself they are the biggest. An empty flat needs wardrobes, a kitchen, lighting and appliances before anyone can live in it. ₹10 lakh on an ₹80 lakh flat is normal, not a luxury.
The cash you need on day one
The bank lends against 80% of the flat price. It does not pay for stamp duty, registration, brokerage or your kitchen. All of that comes out of the same savings as your upfront payment.
| Flat price | 20% upfront | Duties, legal, brokerage | Cash needed on day one |
|---|---|---|---|
| ₹50L | ₹10.0L | ₹4.3L | ₹14.3L |
| ₹80L | ₹16.0L | ₹6.6L | ₹22.6L |
| ₹1.2cr | ₹24.0L | ₹9.6L | ₹33.6L |
Interiors come on top of these, and usually cannot wait. Planning for the upfront payment alone leaves most buyers well short of what they need in the bank.
Documents to check first
None of the maths matters if the paperwork is wrong. Before you pay anything, check:
| Check | Why it matters |
|---|---|
| RERA registration | Legal recourse and disclosure obligations on the builder |
| Khata certificate | Property is on municipal records in the seller's name |
| Approved building & layout plan | What is built matches what was sanctioned |
| Occupancy / completion certificate | The building is legally fit to occupy |
| Builder's delivery record | Past projects finished, and finished on time |
| Encumbrance certificate | No existing loan or claim sits on the property |
Recurring costs
Maintenance is roughly ₹3,000–₹6,000 a month on an ₹80 lakh flat, plus property tax each year. Both count inside the 30% housing limit from the 20/30/40 rule, so they lower the EMI you can afford, and so the flat you can buy.
Someone on ₹1 lakh a month paying ₹4,000 maintenance has ₹26,000 of EMI room, not ₹30,000. That is about ₹5 lakh less loan than the headline rule suggests.
Location
Newer areas cost less and may grow faster. Established areas cost more but come with roads, water and transport that already exist, rather than being promised. Being close to schools and transport helps resale more reliably than a long list of amenities does.
No spreadsheet can decide this for you. But do the maths above first, because it tells you which areas are worth looking at.