Kitchen Extension Planning Permission in Wandsworth

Whether a kitchen extension in Wandsworth needs planning permission usually comes down to size, not the fact of building one at all - most single-storey rear extensions qualify for permitted development, subject to the limits below and to Wandsworth's own conservation area restrictions.

Permitted development limits

Without full planning permission, a single-storey rear extension in Wandsworth is typically capped at 3m beyond the rear wall for terraced and semi-detached houses, or 4m for detached houses. Going further - up to 6m or 8m respectively - is possible via the "larger home extension" prior approval route, which means notifying neighbours through the London Borough of Wandsworth and clearing an objection period before building.

Height limits typically apply too - commonly around 4m maximum for a single-storey rear extension, and no higher than 4m within 2m of a boundary.

What's different in Wandsworth

Where the Wandsworth Town conservation area, designated in 1984 and extended in 1989 cover parts of Wandsworth, permitted development rights for extensions are commonly restricted or removed entirely - materials, roofline and even window style may need to match the existing house rather than a standard modern finish. the London Borough of Wandsworth's planning department can confirm your specific property's status before you commit to a design.

Get it confirmed, don't assume it

Even where permitted development likely applies, a Lawful Development Certificate from the London Borough of Wandsworth is a formal, low-cost confirmation that protects you if a neighbour complains or you sell the house later. A builder who works regularly in Wandsworth will usually have a good instinct for whether your plans qualify, but the council's confirmation is what removes doubt entirely.