10 questions

Renovation Costs & Budgets in Fulham

Every question below came from what people actually search before starting a project. The answers give real 2026 ranges for Fulham and south west London, excluding VAT, along with what moves the number — because a range without the reasons behind it is not much use when you are trying to set a budget.

How much does it cost to renovate a house in London?

A full house renovation in London costs £1,500 to £3,500 per square metre excluding VAT, so a typical three-bedroom Fulham terrace of around 110m² lands between £150,000 and £350,000. A cosmetic refresh with no structural or services work is far less — usually £30,000 to £60,000.

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Is 40k enough to renovate a house in the UK?

£40,000 is enough for a good cosmetic renovation of a two or three-bedroom house — rewiring or replumbing one of the two, a new kitchen or bathroom, and full redecoration. It is not enough for a whole-house gut renovation in London, where £40,000 covers roughly a quarter of the work.

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Can I renovate a house for 50k?

Yes, for a substantial cosmetic renovation with one major element — either a new kitchen, a full rewire, or a bathroom and heating system, but not all of them. In London a £50,000 budget covers about one third of a full gut renovation of a three-bedroom house.

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Can you renovate a house for 20k in the UK?

£20,000 covers a cosmetic refresh — redecoration throughout, new flooring, and either a modest kitchen or a bathroom, but not both. It does not cover structural work, rewiring or replumbing, and in London it is realistically a one-room-plus-decoration budget.

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What is the most expensive part of a house renovation?

Structural work and building services — walls, steels, foundations, rewiring, plumbing and heating — typically account for 40 to 50 percent of a full renovation budget. Kitchens and bathrooms feel more expensive because you choose them, but they are usually a smaller share.

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Is 50k enough for an extension?

In Fulham, £50,000 is below the realistic cost of a full side-return or rear extension, which starts around £60,000 for the shell and services before the kitchen. £50,000 can build a small rear extension of 10 to 14m², or a garden room, but not a typical Victorian side return.

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Can I build an extension for 20k?

Not a habitable extension in London. £20,000 in Fulham covers a garden room, a small porch, or a conservatory — structures that avoid full Building Regulations. A heated, insulated extension connected to the house starts at roughly £45,000 to £50,000 even at a small footprint.

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How much does a 3m by 4m extension cost?

A 3m by 4m extension is 12m², which in Fulham costs £36,000 to £54,000 excluding VAT for the shell and services at £3,000 to £4,500 per square metre. Add a kitchen, high-specification glazing or a roof lantern and the total commonly reaches £60,000 to £75,000.

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Can you do a loft conversion for 20k?

Not in London. A basic Velux loft conversion with no structural roof alteration starts at around £45,000 in Fulham, and a rear dormer with an en-suite is £55,000 to £85,000. £20,000 does not cover the structural floor, staircase and fire safety work a legal conversion requires.

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How much will a loft extension cost in London in 2026?

In 2026, London loft conversions run £45,000 for a basic Velux conversion, £55,000 to £85,000 for a rear dormer — the most common type in Fulham — and £80,000 to £110,000 for a full mansard. All figures exclude VAT and professional fees.

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