Loft, extension, kitchen, heat pump, driveway — or a whole-house refurb?
Forty-plus compiled 2026 UK project bands. Change the size, spec, region, access, whether you live in, VAT treatment, contingency and optional extras. Illustrative only — not a tender and not a builder.
POSITIONING
Access, spec, region, VAT and what you add on move the number more than the project name. Use the range to size a budget, then get written quotes on the same drawing.
Estimate a rangeNot a builder, architect or quantity surveyor. We do not inspect properties or arrange trades.
Ranges compiled from 2026 UK trade guides. Your site will differ.
CALCULATOR
Filter a category, then edit every input that applies to that job.
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| Low in this run | — |
|---|---|
| High in this run | — |
| Size used | — |
| Typical programme | — |
How the mid is built
| Works (after spec, access, region) | — |
|---|---|
| Extras total | — |
| Subtotal ex-VAT | — |
| VAT on this run | — |
| Contingency | — |
| Illustrated mid | — |
Usually in the band.
Usually outside the band.
Not a quote. Planning fees, Party Wall awards, temporary accommodation, furniture and professional fees are omitted unless you tick them. Ground conditions, asbestos, services diversions and hidden rot sit outside every published range.
EXAMPLE REAR DORMER · UK MID · VAT ON · 10% CONTINGENCY
Change any input and this box follows the live run.
Each type has its own size unit and extras. Open the catalogue for the compiled mid before factors.