Post a job free and get contacted by local experienced builders in North London within hours. Covering N1–N22 postcodes.
Single and double storey rear and side extensions across N1–N22. Full planning and build — from foundations to roof — for Victorian and Edwardian terraces.
Find a builder →Velux, dormer, hip-to-gable and mansard loft conversions in North London. Very popular in the area's terraced housing stock — planning and structural work included.
Find a builder →Full house refurbishments, kitchen and bathroom strip-outs, internal remodelling, and basement conversions across North London.
Find a builder →Office refurbishments, shopfits, and commercial building works across Islington, Hackney, and the wider N postcode area.
Find a builder →RSJ steel beam installation, load-bearing wall removal, underpinning, and party wall works — essential for North London's older Victorian stock.
Find a builder →Garden studios, annexes, garages, and single dwelling new builds across North London's larger plot properties.
Find a builder →| Job | Low estimate | High estimate |
|---|---|---|
| Single-storey rear extension | £25,000 | £50,000 |
| Double-storey extension | £45,000 | £90,000 |
| Loft conversion (Velux) | £20,000 | £35,000 |
| Loft conversion (dormer) | £35,000 | £65,000 |
| Full house refurbishment (3-bed) | £40,000 | £100,000 |
| Kitchen extension (open plan) | £30,000 | £60,000 |
| Garage conversion | £12,000 | £25,000 |
| Garden room / studio | £15,000 | £40,000 |
| Basement conversion | £40,000 | £80,000 |
| Party wall agreement | £700 | £2,000 |
| Load-bearing wall removal (RSJ) | £1,500 | £4,000 |
| New build (per m²) | £2,000 | £4,000 |
Prices are estimates for North London 2026. Always get at least three quotes before committing to any work.
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North London — covering postcodes N1 through N22 — is dominated by Victorian and Edwardian terraced housing, and loft conversions are extremely popular across the area. The terraced format means party wall considerations arise on almost every project, and builders working in Islington, Finsbury Park, Crouch End, and Highbury need to be well versed in the Party Wall etc. Act 1996. Many streets in inner North London fall within conservation areas, requiring full planning applications even for modest rear extensions — something homeowners frequently underestimate before starting a project.
The buy-to-let refurbishment market is strong across North London, driven by proximity to central London and high rental demand. Builders in areas like Holloway (N7), Tufnell Park, and Seven Sisters (N15) regularly handle HMO conversions, full gut refurbishments, and open-plan kitchen-diner extensions for landlords and owner-occupiers alike. For any project in a conservation area — including large swathes of Islington and Hackney — engaging a planning consultant or architect before appointing a builder avoids costly delays.
Free to post. No subscription. No hidden fees. Experienced builders covering N1–N22 postcodes — usually responding within hours.
Covering N1 · N4 · N5 · N7 · N8 · N10 · N15 · N16 · N17 · N19 · N22