Renovation budgets vary widely because “renovation” can mean anything from a fresh coat of paint to gutting a flat to the brick. Here are actual numbers, and — more usefully — the one decision that moves them most.
Figures below are indicative planning anchors. Your real number depends on scope, finishes and site condition, and should come from an itemised quote after a site visit.
The numbers
| Home size | Essential | Premium | Luxury |
|---|---|---|---|
| 1 BHK | ₹2.8 lakh | ₹3.9 lakh | ₹5.3 lakh |
| 2 BHK | ₹3.7 lakh | ₹5.1 lakh | ₹6.9 lakh |
| 3 BHK | ₹4.6 lakh | ₹6.4 lakh | ₹8.7 lakh |
| 4 BHK | ₹6.0 lakh | ₹8.3 lakh | ₹11.3 lakh |
| Villa | ₹8.9 lakh | ₹12.5 lakh | ₹17 lakh |
These cover normal renovation scope: finishes, modular work, services upgrades and bathroom waterproofing. Same figures with EMI and full detail on the home renovation page.
What sits outside them: structural change, full re-plumbing and extensive demolition. Those vary far too much between one flat and the next to anchor to a home size, so they get surveyed and quoted separately. If a flat needs stripping back to shell, it isn’t really a renovation any more — it’s a full interior, and it should be priced as one.
Why renovation costs less than a new-home interior
This surprises people, because renovation feels like more work — there’s demolition, debris, and a family living in the house.
The reason is that a good renovation reuses what is still sound. Flooring with years left in it, plumbing done recently, a kitchen platform at a workable height — keeping those is real money saved, and it’s the single biggest reason two renovations of identical flats come in at different numbers.
Which leads to the decision that actually sets your budget.
The decision that sets your budget: what to keep
Flooring. Judge it by whether it’s level and firmly bedded, not by age. Sound vitrified tile can stay another decade. Tile lifting at the edges or sounding hollow underfoot is already failing and will get worse under new furniture.
Plumbing. Concealed pipework from the 2000s is often fine. What usually needs attention is the bathroom waterproofing around it, plus any point that has to move for a new layout — cheap now while tiles are off, expensive later.
Electrical. Judge by capacity, not condition. Circuits sized before modern ACs, geysers and induction cooktops should be upgraded while the walls are open, even if nothing has failed. This is the most common thing we advise that clients hadn’t budgeted for — and the most expensive thing to retrofit.
The kitchen platform. Sound and at a comfortable height? Keep it. Much below 850 mm and you’ll be stooping for another decade.
Bathrooms. Usually the least salvageable part of an older NCR flat, because waterproofing has a finite life and fittings, tiling and falls all age together.
What actually drives the cost
- Civil work — moving walls, replacing flooring and waterproofing are the biggest swing factors.
- Services — re-running electrical and plumbing to a modern layout.
- Finishes — the tier of tiles, laminates, paint, hardware and countertops.
- Scope — full home vs. a single room; the more trades involved, the higher the coordination cost.
Ask for the quote itemised by line so you can compare offers like-for-like and dial the budget with your eyes open. We wrote a full guide on how to compare two interior quotes if you have three in front of you.
Renovation in Noida, sector by sector
Older sectors — 18, 44, 50. Independent houses, builder floors and roomy 2–3 BHKs where the work is genuine modernisation: lifting decades-old flooring, rewiring for modern loads, and replacing bathrooms whose plumbing predates anyone planning for a washing machine. These carry the most civil scope and the widest price spread.
The Expressway belt — Sectors 75 to 150. Far newer stock, so true renovation is uncommon. What we do see is corrective work: replacing thin builder-grade kitchens and wardrobes, and fixing waterproofing early. Doing it while the flat is otherwise untouched is much cheaper than waiting.
Beyond Noida, the pattern holds by stock age rather than postcode — see renovation in Indirapuram, where flats from 2005–2015 are squarely in the failure window, or Ghaziabad, which spans both new towers and older society stock.
Where cheap renovations fail
Waterproofing and electrical, every time. Neither is visible on handover day and both take about two years to embarrass someone.
A failed bathroom membrane shows up as a damp patch on your wall or a neighbour’s ceiling. The real fix by then isn’t a repair — it’s stripping back to the substrate, treating it and rebuilding the waterproofing before re-tiling. Surface treatments sold as shortcuts buy time, not a solution.
Undersized electrical shows up as tripping circuits, warm switch plates and extension boards doing a socket’s job. Fixing it after the walls are painted means opening them again.
Both are cheap while the house is open. If a renovation quote is notably below the others, this is the first place to look.
Timeline
A room-by-room renovation typically runs 3–6 weeks. A full 2–3 BHK renovation runs 45–75 days, depending on civil scope.
Renovations are less predictable than fit-outs because you can’t see everything until demolition starts — which is exactly why a written condition survey should happen first, and why anything genuinely unknowable should be named as provisional in the quote with a stated allowance rather than guessed at inside a fixed number.
How to avoid overruns
- Lock the scope and finishes in writing before work starts.
- Insist on a fixed quote with no escalation on the agreed scope.
- Ask which items are provisional, and what the allowance is for each.
- Budget a contingency for genuine post-demolition surprises — and ask that any such item is photographed and quoted before it’s done.
- Settle electrical and plumbing changes early. They cascade into civil work that may already be finished.
The bottom line
A transparent, itemised quote is worth more than the lowest headline number — it’s the thing that keeps a renovation from quietly growing.
Site visits across Noida, Greater Noida, Indirapuram and Ghaziabad are free and carry no obligation. Book one, or start with the cost calculator if you’d rather have a ballpark first.