Where in Wandsworth does a modern flat project actually get determined?
Every Wandsworth postcode district we draw in, the stock that dominates
it and the authority that validates a modern flat project there. Wandsworth fees below are the
statutory England rates for 2026, not modern flat project estimates.
| Postcode | Area | Dominant stock | What it means for a modern flat project |
|---|
| SW8 | South Lambeth / Nine Elms | Victorian terraces, new-build apartments | South Lambeth / Nine Elms is split at SW8. Either Lambeth Council or Wandsworth Council can determine a modern flat project here, so the SW8 address is checked against both policies maps first. |
| SW16 | Streatham / Norbury | Edwardian terraces, post-war flats | A modern flat project 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 | SW19 straddles a boundary: Wimbledon / Colliers Wood addresses fall to Merton Council or Wandsworth Council, so confirm which authority validates the modern flat project before submitting SW19 drawings. |
| SW11 | Battersea / Clapham Junction | Victorian terraces, mansion blocks | A modern flat project at an SW11 address in Battersea / Clapham Junction is determined by Wandsworth Council under its own Local Plan policies for Battersea / Clapham Junction. |
| SW12 | Balham | Victorian and Edwardian terraces | A modern flat project 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 modern flat project. |
| SW17 | Tooting / Earlsfield | Edwardian terraces | A modern flat project in Tooting / Earlsfield may land with Wandsworth Council or Merton Council — SW17 crosses the boundary, and the SW17 policies map decides it street by street. |
| SW18 | Wandsworth / Earlsfield / Southfields | Victorian villas and terraces | Wandsworth / Earlsfield / Southfields sits wholly inside SW18, so Wandsworth Council validates every modern flat project submitted from an SW18 address. |
What changes about a modern flat project in each part of Wandsworth?
Roof pitch, wall build-up and plot depth change every few Wandsworth
streets, and each one changes what a modern flat project can achieve at that address.
- Wandsworth Common (SW17, SW18) — modern flat project work in Wandsworth Common means victorian villas and terraces. Wandsworth Common is Victorian villas around the common. Wandsworth Council decides the Wandsworth Common application, and Wandsworth Common anchors the Wandsworth Common location plan.
- Earlsfield (SW18) — modern flat project work in Earlsfield means victorian terraces. Earlsfield is Victorian terraced streets. Wandsworth Council decides the Earlsfield application, and Earlsfield station anchors the Earlsfield location plan.
- Putney (SW15) — a modern flat project in Putney starts from edwardian terraces, victorian villas, mansion blocks, and Putney reads as Edwardian terraces, riverside. in SW15. Wandsworth Council assesses Putney modern flat projects against its own Putney character guidance, and the location plan we draw for Putney references Putney Bridge.
- Southfields (SW18) — a modern flat project in Southfields starts from 1930s semi-detached, edwardian terraces, and Southfields reads as 1930s semi-detached, grid plan. in SW18. Wandsworth Council assesses Southfields modern flat projects against its own Southfields character guidance, and the location plan we draw for Southfields references Southfields station.
- Tonsleys (SW18) — Victorian conservation area defines Tonsleys, where victorian terraces set what a modern flat project can do. Any Tonsleys modern flat project is validated by Wandsworth Council, with Tonsley Hill the usual Tonsleys reference point on the site plan.
- Nightingale Triangle (SW12) — modern flat project work in Nightingale Triangle means edwardian terraces and villas. Nightingale Triangle is Edwardian conservation area. Wandsworth Council decides the Nightingale Triangle application, and Nightingale Lane anchors the Nightingale Triangle location plan.
- Roehampton (SW15) — a modern flat project in Roehampton starts from post-war estates, georgian villas, and Roehampton reads as Modernist post-war estates, Georgian fragments. in SW15. Wandsworth Council assesses Roehampton modern flat projects against its own Roehampton character guidance, and the location plan we draw for Roehampton references Alton Estate.
What local planning policy applies to a modern flat project in Wandsworth?
Wandsworth conservation designations: there are 45 across Wandsworth Council, Clapham Common West, Tonsley, Magdalen Park among them. Designation costs a Wandsworth owner the permitted-development route: a modern flat project then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Nightingale Triangle is the Wandsworth designation that most often changes a modern flat project design.
Wandsworth and Article 4: Article 4 for HMO conversions covering the whole borough. A modern flat project planned at a SW11 address is checked against that direction first; Wandsworth Council publishes the Wandsworth extent, and the SW11 line rarely follows the Wandsworth boundary you would expect.
What Wandsworth is built from: 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. That mix decides the modern flat project route in Wandsworth more than the postcode does.
Who decides a modern flat project on the edge of Wandsworth?
- Hammersmith and Fulham — adjoining Wandsworth, with 45 conservation areas centred on W6. A modern flat project on the far side of the Wandsworth line is determined by Hammersmith & Fulham Council, so the Wandsworth quote for modern flat projects is checked against Hammersmith and Fulham guidance before it is issued.
- Westminster — adjoining Wandsworth, with 56 conservation areas centred on SW1. A modern flat project on the far side of the Wandsworth line is determined by Westminster City Council, so the Wandsworth quote for modern flat projects is checked against Westminster guidance before it is issued.
- Lambeth — cross the Wandsworth boundary and Lambeth Council takes the modern flat project instead, applying 64 conservation areas of its own around SE1. We re-price modern flat projects at the Wandsworth edge because Lambeth policy and Wandsworth policy rarely align on modern flat project depth.
- Merton — adjoining Wandsworth, with 28 conservation areas centred on SW16. A modern flat project on the far side of the Wandsworth line is determined by Merton Council, so the Wandsworth quote for modern flat projects is checked against Merton guidance before it is issued.
Sources for this Wandsworth modern flat project 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.
