Is a fixer-upper apartment worth it in 2027? Calculate your profit, not just the price

A fixer-upper apartment looks like a bargain until you calculate the renovation costs. It looks like a trap until you check the prices of renovated apartments in the same area. The truth lies in between — and you can calculate it in 15 minutes.

The Simple Formula

Total cost = purchase price + renovation + transaction costs + time cost

Compare this with the price of a move-in-ready apartment of the same size and location. If the difference is less than 10%, the safety margin is too thin — the market is full of surprises behind the walls.

Numerical Example (50 m² apartment)

• Fixer-upper apartment: £76,000
• Standard renovation (£400/m²): £20,000 + 10% reserve = £22,000
• Transaction costs (notary, taxes, fees): approx. £2,400
• Total: £100,400
• Renovated apartment in the same neighborhood: £112,000

Difference: £11,600 (approx. 10%) — assuming the renovation takes 3 months and nothing major goes wrong. This is exactly the type of scenario where you should negotiate the purchase price instead of believing in a 'bargain'.

When is renovation worth it?

• The purchase price is 20–30% lower than renovated apartments in the same building or estate.
• The renovation concerns finishes, not construction (no replacement of plumbing stacks, ceilings, or roofs).
• You have a 10–15% buffer for unforeseen work.
• You are buying the apartment for years, not for a quick resale.

When does the 'bargain' disappear?

• Old electrical and plumbing installations — replacement costs £6,000–£10,000 and takes several weeks.
• Damp and mold in external walls or the basement.
• Unauthorized renovations without documentation — a problem for handover and insurance.
• Building association with a planned roof repair — your contribution will add to the cost in the first year.

What to check before signing the contract

1. Land and Mortgage Register and legal status.
2. Building association records — planned renovations and outstanding debts.
3. Technical assessment for apartments in older buildings.
4. Renovation quotes from two to three contractors based on the same scope.

This last point determines everything: without a realistic renovation estimate, you do not know if you are buying a bargain or a problem.

Post a renovation job even before finalizing the purchase — you will receive offers from companies that will price the scope based on descriptions and photos. For a quick estimate, use the AI valuation tool, and verify contractors in the company directory based on reviews and certificates.