Which postcode districts around Wandsworth do we cover for kitchen extension work?
Every Wandsworth postcode district we draw in, the stock that dominates
it and the authority that validates a kitchen extension there. Wandsworth fees below are the
statutory England rates for 2026, not kitchen extension estimates.
| Postcode | Area | Dominant stock | What it means for a kitchen extension |
| SW18 | Wandsworth / Earlsfield / Southfields | Victorian villas and terraces | Wandsworth / Earlsfield / Southfields sits wholly inside SW18, so Wandsworth Council validates every kitchen extension submitted from an SW18 address. |
| SW4 | Clapham | Victorian terraces, Edwardian villas | A kitchen extension in Clapham may land with Lambeth Council or Wandsworth Council — SW4 crosses the boundary, and the SW4 policies map decides it street by street. |
| SW8 | South Lambeth / Nine Elms | Victorian terraces, new-build apartments | A kitchen extension in South Lambeth / Nine Elms may land with Lambeth Council or Wandsworth Council — SW8 crosses the boundary, and the SW8 policies map decides it street by street. |
| SW16 | Streatham / Norbury | Edwardian terraces, post-war flats | A kitchen extension in Streatham / Norbury may land with Lambeth Council or Wandsworth Council or Merton Council or Croydon Council — SW16 crosses the boundary, and the SW16 policies map decides it street by street. |
| SW19 | Wimbledon / Colliers Wood | Victorian villas, Edwardian terraces | Wimbledon / Colliers Wood is split at SW19. Either Merton Council or Wandsworth Council can determine a kitchen extension here, so the SW19 address is checked against both policies maps first. |
| SW11 | Battersea / Clapham Junction | Victorian terraces, mansion blocks | Battersea / Clapham Junction sits wholly inside SW11, so Wandsworth Council validates every kitchen extension submitted from an SW11 address. |
| SW12 | Balham | Victorian and Edwardian terraces | A kitchen extension in Balham may land with Wandsworth Council or Lambeth Council — SW12 crosses the boundary, and the SW12 policies map decides it street by street. |
| SW15 | Putney / Roehampton | Edwardian terraces, Victorian villas, mansion blocks | SW15 covers Putney / Roehampton only; Wandsworth Council handles the kitchen extension. |
How does a kitchen extension differ street by street across Wandsworth?
Roof pitch, wall build-up and plot depth change every few Wandsworth
streets, and each one changes what a kitchen extension can achieve at that address.
- Tooting (SW17) — a kitchen extension in Tooting starts from edwardian terraces, and Tooting reads as Edwardian terraces, vibrant high street. Edwardian plots here are wider in SW17. Wandsworth Council assesses Tooting kitchen extensions against its own Tooting character guidance, and the location plan we draw for Tooting references Tooting Market.
- Wandsworth Common (SW17, SW18) — kitchen extension work in Wandsworth Common means victorian villas and terraces. Wandsworth Common is Victorian villas around the common. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage throughout SW17. Wandsworth Council decides the Wandsworth Common application, and Wandsworth Common anchors the Wandsworth Common location plan.
- Earlsfield (SW18) — Victorian terraced streets defines Earlsfield, where victorian terraces set what a kitchen extension can do. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage across SW18. Any Earlsfield kitchen extension is validated by Wandsworth Council, with Earlsfield station the usual Earlsfield reference point on the site plan.
- Putney (SW15) — Edwardian terraces, riverside defines Putney, where edwardian terraces, victorian villas, mansion blocks set what a kitchen extension can do. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage across SW15. Any Putney kitchen extension is validated by Wandsworth Council, with Putney Bridge the usual Putney reference point on the site plan.
- Southfields (SW18) — 1930s semi-detached, grid plan defines Southfields, where 1930s semi-detached, edwardian terraces set what a kitchen extension can do. Edwardian plots here are wider across SW18. Any Southfields kitchen extension is validated by Wandsworth Council, with Southfields station the usual Southfields reference point on the site plan.
- Tonsleys (SW18) — Victorian conservation area defines Tonsleys, where victorian terraces set what a kitchen extension can do. The side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage across SW18. Any Tonsleys kitchen extension is validated by Wandsworth Council, with Tonsley Hill the usual Tonsleys reference point on the site plan.
- Nightingale Triangle (SW12) — kitchen extension work in Nightingale Triangle means edwardian terraces and villas. Nightingale Triangle is Edwardian conservation area. Edwardian plots here are wider throughout SW12. Wandsworth Council decides the Nightingale Triangle application, and Nightingale Lane anchors the Nightingale Triangle location plan.
What local planning policy applies to a kitchen extension in Wandsworth?
Wandsworth conservation designations: there are 45 across Wandsworth Council, Magdalen Park, Nightingale Triangle, Wandsworth Common among them. Designation costs a Wandsworth owner the permitted-development route: a kitchen extension then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Clapham Common West is the Wandsworth designation that most often changes a kitchen extension design.
Article 4 and your Wandsworth kitchen extension: Article 4 for HMO conversions covering the whole borough. At a SW11 address that matters twice over, because Wandsworth Council applies the direction unevenly across Wandsworth — we read the Wandsworth policies map for the exact SW11 address before quoting kitchen extensions.
Wandsworth housing stock: Extensive Victorian terraced streets — the classic London side-return extension opportunity; Edwardian villas around the commons; 1930s semi-detached in Southfields. Family-oriented, high side-return extension and loft conversion rates; planning department experienced with Victorian terrace modifications. Read that before choosing a kitchen extension route in Wandsworth — construction, not postcode, sets what is achievable.
Which neighbouring authorities border Wandsworth?
- Westminster — adjoining Wandsworth, with 56 conservation areas centred on SW1. A kitchen extension on the far side of the Wandsworth line is determined by Westminster City Council, so the Wandsworth quote for kitchen extensions is checked against Westminster guidance before it is issued.
- Lambeth — the Lambeth boundary runs against Wandsworth, so a kitchen extension a street from Wandsworth is decided by Lambeth Council instead. Lambeth runs 64 conservation areas across SE1 and its neighbours, which is why kitchen extensions priced for Wandsworth are re-checked against Lambeth policy whenever the Wandsworth address sits on that edge.
- Merton — the Merton boundary runs against Wandsworth, so a kitchen extension a street from Wandsworth is decided by Merton Council instead. Merton runs 28 conservation areas across SW16 and its neighbours, which is why kitchen extensions priced for Wandsworth are re-checked against Merton policy whenever the Wandsworth address sits on that edge.
- Kingston upon Thames — cross the Wandsworth boundary and Kingston Council takes the kitchen extension instead, applying 22 conservation areas of its own around KT1. We re-price kitchen extensions at the Wandsworth edge because Kingston upon Thames policy and Wandsworth policy rarely align on kitchen extension depth.
Sources for this Wandsworth kitchen extension page: borough policies maps and
conservation-area registers (2025–26), Royal Mail postcode district boundaries,
the Town and Country Planning (Fees for Applications) (England) Regulations, the Town
and Country Planning (General Permitted Development) (England) Order 2015 as amended,
and the Party Wall etc. Act 1996.