Wandsworth is a large south London borough spanning from Battersea — the focus of major regeneration — to Tooting and the borders of Surrey. It has a pragmatic planning department and a substantial number of Victorian and Edwardian terraces where permitted development rights often apply in full. Conservation areas are concentrated in specific localities including Balham, Tooting Bec, and Clapham Junction area, rather than being borough-wide.
Common projects that may be straightforward when they fit within PD limits and local constraints.
These are the usual reasons planning permission becomes more likely in Wandsworth.
The biggest drivers of approval are the exact proposal (dimensions and design) and the exact site constraints (designation, conditions, neighbour impacts). Use borough context as a starting point, then validate it with address-level checks and nearby precedents.
Projects that stay modest in size, match materials, and avoid obvious neighbour impacts are more likely to be straightforward — even before you consider borough-specific policies.
Conservation areas, listed buildings, Article 4 directions, flood risk and TPOs can flip the answer. Address-level checks stop you wasting money on the wrong scheme.
The fastest signal is what the council has approved or refused on comparable streets nearby. Precedent does not guarantee success, but it helps you shape a lower-risk design.
Councils rarely refuse the “idea” of an extension or loft conversion — refusals are usually about scale, design, neighbour impacts, and policy/designation conflicts. When you run a check, CanUBuild shows nearby approvals and refusals so you can see what has worked locally.
An invalid application cannot be registered. Use this checklist to ensure your submission is complete before you pay the fee.
Requirements can change — always verify the current validation checklist on the Wandsworth Council website before submitting.
Search the address, choose your project type, and get an answer based on permitted development rules, local constraints, and nearby precedent decisions.
By London standards, Wandsworth is relatively pragmatic for standard residential extensions. Permitted development rights apply in full across many streets, and the council's approach to extensions is guided by its SPD rather than highly restrictive borough-specific policies.
Not necessarily. Many Wandsworth properties are outside conservation areas and benefit from full permitted development rights. A single-storey rear extension within the PD size limits on a house not subject to other constraints will often not need a formal planning application — though a Lawful Development Certificate is recommended.
Yes — there are conservation areas in and around the Clapham Junction neighbourhood. Check the Wandsworth interactive planning map or the CanUBuild checker for your specific address to confirm whether your property is within a designated area.
Householder applications are typically determined within 8 weeks of a valid application being registered. Pre-application discussions are encouraged for more complex proposals to identify issues before submission.
Last reviewed: 2026-03 · This guide is for general information only. Always verify with Wandsworth Council or a qualified planning consultant before making decisions.