Planning

Renovating an Old Flat in Delhi NCR: What to Fix First, Costs and Timelines

Planning to renovate an old flat or builder floor in Delhi, Ghaziabad or Noida? What to fix first, typical costs, timelines and how to renovate while living at home.

By the AHU Interior design teamUpdated 3 min read

Warm, sunlit living room with linen upholstery, sheer curtains and a pendant light

Many of NCR’s older societies, DDA flats and builder floors are now 15 to 30 years old. They often have generous rooms and good locations — and dated kitchens, tired bathrooms, old wiring and too little storage.

A well-planned renovation can make an older flat feel new. The key is doing the work in the right order.

Start with a condition check

Before designing anything, check what is behind the walls. Problems found later are expensive to fix after new furniture is installed.

  • Electrical: old aluminium or undersized wiring, too few points, an outdated distribution board, and whether the sanctioned load supports ACs and modern appliances.
  • Plumbing: corroded GI pipes, low pressure, leaks and slow drains.
  • Dampness and seepage: around bathrooms, kitchens and external walls — especially after the monsoon.
  • Structure: cracks in beams, columns or slabs need a structural engineer’s opinion.

The right order of work

  1. Structural repairs and waterproofing.
  2. Rewiring and new electrical points; plumbing replacement.
  3. Civil changes — removing old kitchen platforms, retiling, bathroom upgrades.
  4. False ceilings, AC piping and the chimney duct — see false ceiling guide.
  5. Modular kitchen and wardrobes.
  6. Painting and polishing, then loose furniture and décor.

What renovation costs

A renovation budget has two parts: the interiors (kitchen, wardrobes, ceilings, finishes) and the civil and services work (rewiring, plumbing, waterproofing, tiling). The interiors cost broadly the same as in a new flat — use our cost calculator and cost guide. The civil and services work varies far more with the condition of the flat, so it is estimated after a site inspection.

What typically changes the renovation budget
FactorEffect on cost
Complete rewiringSignificant, but essential in very old flats
Replacing plumbing linesModerate to significant, depending on access
Retiling floors throughoutSignificant — consider laying over existing tiles where suitable
Bathroom renovationModerate per bathroom — see our bathroom guide
Keeping existing layoutsSaves cost — moving kitchens and bathrooms is expensive

Renovating while living at home

  • Renovate in phases — for example bedrooms first, then the kitchen with a temporary cooking setup.
  • Seal off work areas and protect floors and furniture from dust.
  • Agree working hours with your society and neighbours in advance.
  • Plan for a few days without water or power during service changes.

If you can move out for the duration, a complete renovation of a 2 or 3 BHK typically takes 8–12 weeks, depending on the civil work involved.

Where we renovate

We renovate homes across Delhi, Ghaziabad — including established areas such as Indirapuram and Vaishali — Noida and the rest of NCR. Book a site visit.

Plan your home with our designers

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FAQs

Frequently asked questions

Can’t find your answer? Ask our design team.

Should I rewire my old flat during renovation?

If the wiring is more than 15–20 years old, aluminium, or not sized for modern appliances and ACs, yes. It is far easier and cheaper to rewire before new ceilings and furniture go in.

Can I renovate one room at a time?

Yes. Plan the design for the whole home first so the phases fit together, then renovate room by room. Do shared services such as wiring and plumbing in one go if you can.

How long does it take to renovate a 3 BHK?

Around 8–12 weeks for a complete renovation with civil, electrical and plumbing work, if the home is empty. Phased renovations while living at home take longer.

Begin a Project

Let’s create a space that feels like you

Tell us about your home or workspace. We’ll listen, ask the right questions, and suggest how we could shape it together.