Two-storey rear extension in Wandsworth

Which postcode districts around Wandsworth do we cover for two storey rear work?

Every Wandsworth postcode district we draw in, the stock that dominates it and the authority that validates a two storey rear there. Wandsworth fees below are the statutory England rates for 2026, not two storey rear estimates.

How does a two storey rear 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 two storey rear can achieve at that address.

• Battersea (SW8, SW11) — a two storey rear in Battersea starts from victorian terraces, new-build apartments, and Battersea reads as Victorian terraces, riverside regen at Power Station. 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 in SW8. Wandsworth Council assesses Battersea two storey rears against its own Battersea character guidance, and the location plan we draw for Battersea references Battersea Power Station.
• Balham (SW12) — a two storey rear in Balham starts from victorian and edwardian terraces, and Balham reads as Victorian and Edwardian terraces. 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 in SW12. Wandsworth Council assesses Balham two storey rears against its own Balham character guidance, and the location plan we draw for Balham references Balham High Road.
• Tooting (SW17) — a two storey rear 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 two storey rears against its own Tooting character guidance, and the location plan we draw for Tooting references Tooting Market.
• Wandsworth Common (SW17, SW18) — two storey rear 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) — two storey rear work in Earlsfield means victorian terraces. Earlsfield is Victorian terraced streets. 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 SW18. Wandsworth Council decides the Earlsfield application, and Earlsfield station anchors the Earlsfield location plan.
• Putney (SW15) — a two storey rear in Putney starts from edwardian terraces, victorian villas, mansion blocks, and Putney reads as Edwardian terraces, riverside. 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 in SW15. Wandsworth Council assesses Putney two storey rears against its own Putney character guidance, and the location plan we draw for Putney references Putney Bridge.
• Southfields (SW18) — two storey rear work in Southfields means 1930s semi-detached, edwardian terraces. Southfields is 1930s semi-detached, grid plan. Edwardian plots here are wider throughout SW18. Wandsworth Council decides the Southfields application, and Southfields station anchors the Southfields location plan.

Does Wandsworth planning policy restrict a two storey rear?

Conservation areas covering Wandsworth: Wandsworth Council runs 45, and Wandsworth Common, Clapham Common West, Tonsley are the ones Wandsworth owners meet most. A two storey rear inside a Wandsworth conservation area loses permitted development, so the Wandsworth submission is a householder application at £548 decided in 8 weeks — not a £249 prior approval decided in 6 weeks. In Tonsley a two storey rear is judged on the street elevation first.

Wandsworth and Article 4: Article 4 for HMO conversions covering the whole borough. A two storey rear 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 two storey rear route in Wandsworth more than the postcode does.

Which neighbouring authorities border Wandsworth?

• Westminster — adjoining Wandsworth, with 56 conservation areas centred on SW1. A two storey rear on the far side of the Wandsworth line is determined by Westminster City Council, so the Wandsworth quote for two storey rears is checked against Westminster guidance before it is issued.
• Lambeth — cross the Wandsworth boundary and Lambeth Council takes the two storey rear instead, applying 64 conservation areas of its own around SE1. We re-price two storey rears at the Wandsworth edge because Lambeth policy and Wandsworth policy rarely align on two storey rear depth.
• Merton — the Merton boundary runs against Wandsworth, so a two storey rear a street from Wandsworth is decided by Merton Council instead. Merton runs 28 conservation areas across SW16 and its neighbours, which is why two storey rears priced for Wandsworth are re-checked against Merton policy whenever the Wandsworth address sits on that edge.
• Kingston upon Thames — adjoining Wandsworth, with 22 conservation areas centred on KT1. A two storey rear on the far side of the Wandsworth line is determined by Kingston Council, so the Wandsworth quote for two storey rears is checked against Kingston upon Thames guidance before it is issued.

Sources for this Wandsworth two storey rear 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.