Which postcode districts around Wandsworth do we cover for permitted development scheme work?
Wandsworth is a permissive council with an unusually small amount of permitted development actually going on inside it. It approved 91.3% of the householder applications it decided in the three years to March 2026, the fourth-highest rate of the 32 boroughs the figure can be calculated for, against 83.0% across London (MHCLG planning application statistics, retrieved 1 September 2026). The table below lists the districts we draw in and who validates an application in each. Fees quoted are the statutory England rates for 2026, not our estimates.
| Postcode | Area | Dominant stock | What it means for a permitted development scheme |
|---|
| SW12 | Balham | Victorian and Edwardian terraces | Balham is split at SW12. Either Wandsworth Council or Lambeth Council can determine a permitted development scheme here, so the SW12 address is checked against both policies maps first. |
| SW15 | Putney / Roehampton | Edwardian terraces, Victorian villas, mansion blocks | Putney / Roehampton sits wholly inside SW15, so Wandsworth Council validates every permitted development scheme submitted from an SW15 address. |
| SW17 | Tooting / Earlsfield | Edwardian terraces | SW17 covers Tooting and Furzedown and is Wandsworth Council territory for most of its length, but the eastern edge towards Colliers Wood falls to Merton Council. The two publish different validation checklists, so settle the authority before the measured survey rather than after it. |
| SW18 | Wandsworth / Earlsfield / Southfields | Victorian villas and terraces | Wandsworth / Earlsfield / Southfields sits wholly inside SW18, so Wandsworth Council validates every permitted development scheme submitted from an SW18 address. |
| SW4 | Clapham | Victorian terraces, Edwardian villas | Clapham is Lambeth Council for the most part. The stretch west of the Common towards Battersea is Wandsworth Council, with a different local plan and different supplementary guidance on rear extensions. In SW4 a single street can change which of the two answers you. |
| SW8 | South Lambeth / Nine Elms | Victorian terraces, new-build apartments | Nine Elms and South Lambeth sit either side of the Wandsworth–Lambeth line. The Wandsworth part of SW8 runs west towards Battersea; east of that boundary the file belongs to Lambeth Council. A permitted development enquiry sent to the wrong authority is not forwarded — it is returned. |
| SW16 | Streatham / Norbury | Edwardian terraces, post-war flats | SW16 is the awkward one. Streatham and Norbury addresses validate with Lambeth Council, Croydon Council, Merton Council or Wandsworth Council depending on the street — four authorities, four validation lists, four sets of drawing requirements. Establish which one owns the address before anything is commissioned. |
| SW19 | Wimbledon / Colliers Wood | Victorian villas, Edwardian terraces | SW19 belongs to Merton Council far more often than to Wandsworth Council — Wimbledon, Raynes Park and Colliers Wood are all Merton — while the northern fringe towards Southfields crosses over. Merton's policies map decides it street by street, and the street is what matters, not the postcode. |
Which Wandsworth neighbourhoods suit a permitted development scheme best?
Two structural facts decide what is achievable here before any design does. The borough is old — 32.2% of its 157,890 dwellings predate 1900, and only 4.5% date from the 1930s against 16.0% across London — and it is a borough of flats: 3,433 of the homes sold in 2025 were flats, against 1,318 terraced houses (VOA council tax stock at 31 March 2025 via the London Datastore; HM Land Registry Price Paid data, 2025 completions). Permitted development rights apply only to houses, so for a large share of Wandsworth addresses the route is closed before the question of design comes up at all.
- Earlsfield and Tooting (SW17, SW18) — long uniform Victorian and Edwardian terraced grids, and the most straightforward permitted development in the borough. These roofs are terraced, so the loft allowance is 40 cubic metres rather than 50, and a rear dormer kept below the ridge and set back 200mm from the eaves is normally lawful without any application at all.
- Balham and the Nightingale streets (SW12) — the same stock, with a far higher chance of a designation. The test is not what the house looks like. It is whether the address stands on article 2(3) land, because that removes Class B roof enlargements, side extensions, two-storey rear extensions and cladding in a single stroke.
- Around the commons (SW11, SW17, SW18) — the largest designations in the borough by a wide margin. Wandsworth Common covers 245.3 hectares, Battersea Park 127.8 and Clapham Common 64.2 (planning.data.gov.uk conservation area register, retrieved 1 September 2026). A house facing one of these is not merely near a protected space; it is usually inside the designation.
- Putney and West Putney (SW15) — Edwardian terraces, Victorian villas and mansion blocks standing within a few streets of each other, and the distinction between them is the one that decides everything. A house has rights. A flat has none, however similar the street looks.
- Southfields (SW18) — the borough’s pocket of 1930s semi-detached housing, and the only part of Wandsworth where a hip-to-gable is routine work. Because these are semis rather than terraces, the volume allowance is 50 cubic metres.
- Battersea and Nine Elms (SW8, SW11) — a great deal of recent building, and new build frequently carries planning conditions that remove permitted development rights entirely. Read the original permission for the block or the estate before assuming the national rules apply to your flat or house.
How do conservation areas and Article 4 affect a permitted development scheme in Wandsworth?
What a designation costs you here. Inside a Wandsworth conservation area the house is on article 2(3) land, so what would have been a £274 certificate or a £249 prior approval becomes a £548 householder application. What it does not usually cost is consent. This council approved 2,836 of the 3,107 householder applications it decided over three years, and 137 of the 143 listed building consents to alter or extend — the fourth-highest listed-consent rate of the 26 boroughs where it can be calculated (MHCLG planning application statistics, retrieved 1 September 2026). The borough holds 312 listed buildings, five of them Grade I and 34 Grade II* (Historic England, via the MHCLG Planning Data Platform, retrieved 2 September 2026).
The Article 4 direction is about HMOs, and nothing else. It covers the whole borough and removes the Class C3 to Class C4 change from permitted development, so converting a family house into a small shared home needs full planning wherever you are in Wandsworth. It has no bearing on an extension, a loft or an outbuilding. Those are governed by the conservation area boundary, or by nothing at all.
Where Wandsworth is slower than its reputation. Only 85.8% of householder decisions landed inside eight weeks, against 92.5% across London and 28th of the 32 boroughs measured, and 82.9% of all decisions came inside the statutory period against 87.6% London-wide. A permissive council is not the same thing as a quick one. The right response is a longer programme, not a more defensive design.
What happens if a Wandsworth property sits on a boundary?
- Richmond upon Thames — across the river and across Putney Bridge. Richmond determines anything on its own side, and it is a markedly more heritage-constrained authority, so a design that would pass without comment in Putney is not a safe assumption in Barnes or East Sheen.
- Hammersmith and Fulham — the boundary runs along the Thames from Wandsworth Bridge up to Putney. That council approved 96.0% of its householder applications over the same three years, the highest rate in London, but agreed an extension of time on 59.6% of everything it decided against Wandsworth’s 36.2% (MHCLG planning application statistics, twelve quarters to March 2026, retrieved 1 September 2026). Same river, a very different programme.
- Lambeth — the eastern boundary, cutting through Clapham and Streatham. The line does not follow the neighbourhood name, and a great many addresses described by agents as Clapham are determined by Lambeth rather than by Wandsworth. Establish which before anything else.
- Westminster — the river at Nine Elms and Vauxhall. In practice this matters for the riverside blocks rather than for houses, and there the lease and the original estate permission usually decide more than either council does.
Sources for this Wandsworth permitted development scheme 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.
