Wandsworth Council
Building in Wandsworth: a local guide
Housing stock, planning and conservation notes, and indicative costs for extensions, lofts and renovations in Wandsworth, plus quotes from independent local builders.

Homes in Wandsworth
Wandsworth has extensive Victorian and Edwardian terraces, including the streets between Wandsworth and Clapham Commons, interwar housing in Southfields and Tooting, and modern riverside flats.
Typical projects here
Side-return and wraparound extensions, L-shaped dormer lofts on terraces, and full family-home renovations.
Planning and conservation in Wandsworth
Planning and building control in this area are handled by Wandsworth Council. The borough has many conservation areas, and areas near the Thames and the River Wandle may have flood-risk considerations. Before you design, check whether your property is in a conservation area, is listed or is covered by an Article 4 direction; these change what you can build without permission. Our guide to permitted development in London explains the national rules, and loft conversion regulations covers roof works.
Wandsworth and Richmond share a planning service, so guidance often looks similar across the two boroughs.
Typical building costs in Wandsworth
Costs in Wandsworth usually sit between outer London rates (about £2,500 to £3,500 per m²) and central London rates (about £3,500 to £4,500+ per m²), depending on the street, access and specification. Budget on top for professional fees (about 15%), consents and contingency (8–15%) and VAT at 20% on extensions and renovations. These are indicative industry ranges for 2026, not a quote; see our London cost guide or request fixed quotes from local builders.
Neighbourhoods in Wandsworth
Questions about building in Wandsworth
Can I request quotes from builders in Wandsworth?
Yes. Quote requests are accepted from anywhere in Wandsworth, including Battersea, Clapham Junction, Balham, Tooting, Putney, Earlsfield, Southfields, Wandsworth Town, across London and the wider UK. With your consent, we pass your enquiry to up to 3 local builders who advertise with us.
Do I need planning permission for an extension in Wandsworth?
It depends on your property. Houses outside conservation areas may be able to use permitted development, while flats, conservation areas and Article 4 directions usually mean an application to Wandsworth Council. A Lawful Development Certificate gives certainty.
Should I check a builder’s insurance?
We ask every builder who advertises with us to provide proof of current public liability insurance before they are listed. Always check each builder’s insurance, references, written quote and trade body membership yourself before work starts.
Nearby: Ealing · Hammersmith & Fulham · Camden · Islington · Lambeth · all London boroughs · UK areas
Request quotes · UK introductions
Request quotes for your Wandsworth project
Tell us about your extension, loft or renovation anywhere in the UK. With your consent, we pass your enquiry to up to 3 independent builders who advertise with us, so they can contact you with quotes. We do not carry out building work ourselves.
- Free to use, no obligation
- Up to 3 builders, only with your consent
- Always check each builder’s insurance, references and written quote