London Renovation Cost Guides
These four guides cover what kitchen renovations, bathroom renovations, loft conversions, and house extensions actually cost in London in 2026, from £3,500 cosmetic refreshes to £280,000+ architect-led rebuilds. Every figure is sourced from named third parties, dated, and reviewed annually, not estimated.
We respond to every enquiry with a written quote within 2 hours during business hours.
London Renovation Costs at a Glance
London renovation costs in 2026 span roughly £3,500 for a cosmetic bathroom refresh to £280,000 or more for an architect-led house extension, with kitchen renovations and loft conversions filling the range in between depending on scope and specification.
| Service | Cost Range | Timeline | Guide link |
|---|---|---|---|
| Bathroom Renovation Cost in London (2026) | £3,500 – £22,000+ | 3 – 22 days | View Guide |
| House Extension Cost in London (2026) | £40,000 – £280,000+ | 10 – 22 weeks | View Guide |
| Kitchen Renovation Cost in London | £8,000 – £75,000+ | 1 – 12+ weeks | View Guide |
| Loft Conversion Cost in London | £25,000 – £120,000+ | 4 – 14 weeks | View Guide |
Figures are typical London market ranges sourced and dated on each guide, not fixed Soraiz Builders prices. Get a free quote for an accurate price based on your project.
Explore Each Cost Guide
Each guide breaks its service down by budget tier, by cost element, and by property type, with a real project cost breakdown and the hidden London costs most sites leave out.
Bathroom Renovation Cost in London (2026)
A bathroom renovation in London costs £3,500-£22,000+ in 2026. See real cost tiers, an itemised project breakdown, and the hidden London costs most guides miss.
House Extension Cost in London (2026)
A house extension in London costs £1,900 to £4,800 per m² in 2026, or £40,000 to £280,000+ by tier. Line-item breakdown, groundworks, glazing and hidden costs.
Kitchen Renovation Cost in London
Kitchen renovation cost in London ranges from £8,000 to £75,000+ in 2026. Full breakdown by budget tier, trade, and property type, plus a real London project example. Book your free estimate.
Loft Conversion Cost in London
Loft conversion cost in London runs £25,000 to £120,000+ in 2026. See per m² pricing, a full line-item cost breakdown, hidden costs and a worked example.
How These Guides Are Written
A cost guide is only useful if the numbers hold up. Here is exactly how each one gets built and kept current.
Figures are triangulated, not guessed
Every cost line is checked against multiple named third-party sources, including Checkatrade, MyBuilder, WhatToCharge.co.uk, and published UK trade rate data, before it goes on the page. Outlying figures get discarded rather than used to widen the range for effect.
Every guide carries a visible last-updated date
You can see when a guide was last checked without opening the page source. Construction costs move, and a guide that does not say when it was last verified is not worth trusting with a real budget decision.
Written by a working London builder
These guides are written and reviewed by Shamraiz Hussain, founder of Soraiz Builders, who has priced and delivered renovation projects across London since 2019. This is not outsourced content written by a marketing agency with no site experience.
Reviewed annually, corrected when wrong
Each guide is reviewed at least once a year against current market data, and sooner if a figure is found to be out of date or inconsistent with what appears elsewhere on this site. Consistency across pages matters as much as accuracy on any single page.
Frequently Asked Questions
What does a renovation cost in London?
It depends entirely on the service and scope. A bathroom renovation starts around £3,500 for a cosmetic refresh, a kitchen renovation runs £8,000 to £75,000+, a loft conversion costs £25,000 to £120,000+, and a house extension can reach £280,000 or more for a large architect-led scheme. Each guide breaks its own figure down by tier.
Why is renovation more expensive in London than the rest of the UK?
Labour rates run 15 to 35% above the UK national average depending on the trade, and site-specific costs add up fast: skip permits, parking suspensions, the £12.50 daily ULEZ charge on non-compliant vehicles, and restricted access on terraced streets. Each cost guide breaks down exactly which of these apply to that service.
How accurate are online renovation cost estimates?
Only as accurate as the sources behind them. These guides triangulate figures across multiple named third parties rather than publishing a single site’s number, and state the range a typical London project falls into rather than a false single price. No online estimate replaces a site visit, since access, specification, and property condition all move the final figure.
How often are these cost guides updated?
At least once a year, with the review date shown on every guide. Figures also get corrected sooner if a genuine market shift is identified or if an inconsistency is found between a guide and another page on this site, since contradictory figures for the same service help nobody.
What should any renovation quote include?
A proper written quote should itemise labour and materials separately, state what is excluded as well as included, name who covers skip hire and waste disposal, confirm whether VAT is included, and give a realistic timeline with a start date. A quote that is a single lump figure with no breakdown is the biggest red flag when comparing contractors.
Do I need planning permission for renovation work?
Often not for internal work like a kitchen or bathroom renovation, but usually yes for a loft conversion beyond permitted development limits or a house extension exceeding standard size allowances. Each service’s own guide and its parent service page cover the exact permitted development thresholds, Party Wall requirements, and Building Regulations that apply.
Get a Free Quote, Written Within 2 Hours
Tell us which project you’re planning and we’ll come back with a written quote based on your actual property, not a generic online range. 2-hour response during business hours.
Reviewed by Shamraiz Hussain, Soraiz Builders