Home Improvement Costs in London 2026

Regional model1.28× baseline

Price basis2026 UK benchmarks

These figures are modelled planning ranges, not observed city-wide averages or contractor quotes. National benchmark ranges are adjusted by the UK Home Costs regional factor and rounded for budgeting.

Typical planning ranges in London

House extension£2,300–£3,850 / m²

Kitchen renovation£6,700–£36,350

Bathroom renovation£7,050–£17,900

Roof replacement£5,100–£23,050

House rewire£5,100–£15,350

Boiler replacement£3,200–£7,050

Solar panels£6,400–£11,500

Builder day rate£230–£450 / day

How to use these figures

Dense access, parking, deliveries and contractor overheads can widen the spread between quotations, so use the figures as an early budget rather than a quote.

Start with the table to understand project scale, then use a calculator to add floor area, condition, finish level and other project-specific inputs. A postcode-aware calculator can infer the same broad region while still allowing a manual override.

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