Kitchen & Bathroom Cost Calculator

Q: How much does a kitchen renovation cost in London in 2026?

A cosmetic kitchen refresh in London (new doors, worktop, tiling) typically costs £5,000–£15,000. A full kitchen refit costs £15,000–£45,000 depending on size and spec. A full refit with structural changes (knock-through, new drainage routes) can cost £30,000–£80,000 or more. All figures are broad guides only — actual costs depend on site conditions and the specific design.

Q: How much does a bathroom renovation cost in London?

A cosmetic bathroom refresh in London (new sanitary ware, tiling, decoration) costs around £4,000–£10,000. A full bathroom refit costs £8,000–£25,000. A large bathroom or ensuite with premium fittings can cost £20,000–£50,000+. These are broad guides only — actual costs vary significantly by site conditions and specification.

Get a broad budget guide for your kitchen or bathroom renovation in London. Choose what you're renovating, how much work is involved, the spec level and your borough — and get an indicative cost range in under two minutes.

Calculate your renovation cost

Answer four questions for an indicative budget range. All figures are London market rates for 2026 and exclude VAT.

Step 1 of 4

What are you renovating?

Step 2 of 4

How much work is involved?Choose the option that best describes the scope — this is the biggest single driver of cost.

How would you describe the room size?

Step 3 of 4

What level of finish are you looking for?This covers the quality of materials, units, sanitaryware and fittings throughout.

Step 4 of 4

Your London boroughLabour rates vary across London — select your borough for the most relevant estimate.

Your London borough

Budget guide range (ex-VAT)

— Indicative only · London market rates 2026 · wide range reflects real-world variation

Item	Low estimate	High estimate

VAT (20%): Not included above. Standard-rated building work is subject to 20% VAT. Some projects may qualify for reduced or zero-rate VAT — your builder or accountant can advise.

This tool uses typical London market rates for 2026 as a broad planning guide. It cannot account for the existing condition of your pipework and drainage, structural complications, access restrictions or the detail of your chosen design and finishes. Only a formal, itemised tender following a site visit gives you a reliable figure to work from.

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What does a kitchen or bathroom renovation cost in London in 2026?

Kitchen and bathroom renovations are among the most high-impact improvements you can make to a London home — and among the most variable in cost. The difference between a cosmetic refresh and a full structural remodel of the same room can be a factor of five or more. Understanding what drives cost is the most useful thing you can do before speaking to a builder or designer.

The biggest single driver of cost is scope — whether you are keeping the existing layout or changing it. Moving drainage is expensive: a soil stack relocation can add £3,000–£8,000 to a bathroom project alone. Moving kitchen plumbing adds similar sums. If you can work with the existing layout, you save significantly.

On top of the build cost, budget for:

VAT (20%): Standard-rated on building work. Some projects qualify for reduced rates.
Design fees: An interior designer or kitchen designer typically charges 10–15% of the project cost, or a fixed fee. Well worth it for complex kitchens.
Contingency: Allow 10–15% — older properties regularly present hidden pipework or drainage surprises once walls are opened up.

Kitchen renovation costs by scope and spec

Scope	Standard spec	Mid-range spec	High-end spec
Cosmetic refresh (medium kitchen)	£5,000–£12,000	£10,000–£22,000	£18,000–£40,000
Full refit (medium kitchen)	£12,000–£25,000	£22,000–£45,000	£40,000–£80,000
Full refit + structural (medium)	£18,000–£35,000	£30,000–£65,000	£55,000–£120,000+

Bathroom renovation costs by scope and spec

Scope	Standard spec	Mid-range spec	High-end spec
Cosmetic refresh (medium bathroom)	£3,000–£7,000	£6,000–£14,000	£10,000–£25,000
Full refit (medium bathroom)	£7,000–£15,000	£12,000–£24,000	£20,000–£45,000
Full refit + structural (medium)	£10,000–£20,000	£16,000–£32,000	£28,000–£60,000+

All figures ex-VAT. London rates — add 20% VAT and allow for design fees separately.

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These ranges give you a planning guide. For a detailed, itemised quote based on your actual layout, visit the site and get a transparent fixed-price tender — contact us today.

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Frequently Asked Questions

How much does a kitchen renovation cost in London in 2026?

Costs vary enormously by scope and spec. A cosmetic refresh (new doors, worktop, tiling — keeping the same layout) in a medium kitchen typically costs £5,000–£22,000 depending on the quality of materials. A full refit of a medium kitchen costs £12,000–£45,000. A full refit with structural changes (knock-through, moved drainage) in the same kitchen costs £18,000–£65,000+. High-end bespoke kitchens can reach £80,000–£150,000 for large open-plan spaces. Use the calculator above for a more tailored range.

How much does a bathroom renovation cost in London?

A straightforward bathroom refresh in London costs £3,000–£14,000 depending on spec. A full refit costs £7,000–£45,000. A large bathroom or principal ensuite with premium fittings can cost £20,000–£60,000+. The biggest cost variable is whether you are moving drainage or keeping the existing layout — moving a soil stack or drain run adds £3,000–£8,000 alone.

Should I do kitchen and bathroom at the same time?

Combining projects reduces cost — your builder's preliminaries (site set-up, skip hire, scaffold if needed) are shared, and tradespeople (plumber, electrician, plasterer) make fewer separate visits. If significant plumbing work is involved in both rooms, combining is almost always more cost-effective. The main drawback is a longer period of disruption to your home.

Do I need planning permission to renovate a kitchen or bathroom?

Generally no — internal alterations to kitchens and bathrooms do not require planning permission. However, if the works involve a structural opening (removing a load-bearing wall), you will need Building Regulations approval. If you live in a listed building, any alterations — even internal — require listed building consent. If your renovation is part of a larger extension, the extension itself may need planning permission.

How accurate is this calculator?

This is a broad budget planning guide only — not a quote. Actual costs can vary by 30–50% or more depending on the existing condition of the room, your pipework and drainage layout, structural requirements, access and the detail of your chosen design and finishes. A builder cannot be held to any figure produced by an online calculator. Only a formal, itemised tender following an on-site assessment gives you a reliable cost to work from.

By My Local London Builder Team · Last updated May 2026 · All figures ex-VAT · Broad guide only — obtain formal quotes before committing.