Kitchen Extension Cost in Battersea: 2026 Price Guide

Ask a local builder what the most common job in Battersea is, and a rear kitchen extension is usually near the top of the list - understandable given a historic village pattern around Battersea Square and St Mary's Church, Victorian terraces further out, and the major new-build regeneration around Battersea Power Station across much of the area. Most homeowners are chasing the same thing: a proper kitchen-diner instead of a cramped galley kitchen.

Typical costs

• Small extension (up to 15m²): roughly £30,000-£45,000
• Medium extension (15-25m²): roughly £45,000-£70,000
• Larger or wraparound extension (25m²+): £70,000 upwards

These figures are a guide, not a quote - they cover building work, a standard fit-out, and typical finishes. Bifold or sliding doors, roof lanterns, underfloor heating and a higher-spec kitchen will all add to the total.

What affects the price locally

In Battersea, the biggest local factor is usually access. Many streets are close terraces with no side access, which means materials have to be carried through the house and skips have to sit on the road - both of which builders will price in. Properties within the Battersea Square conservation area - Wandsworth has 46 in total sometimes face tighter controls on matching brick, roofline and window styles to the existing building, which can add to material costs even for a rear extension that doesn't need planning permission.

Foundations matter too - the Victorian and Edwardian housing near Battersea Power Station and Battersea Park was typically built on shallower footings than current standards expect, so a structural engineer often specifies extra depth that a modern property simply wouldn't need.

Do you need planning permission?

Permitted development covers a lot of single-storey rear extensions, but not without limits, and those limits bite harder on terraced and semi-detached houses than detached ones. Inside Battersea's conservation areas, expect those rights to be trimmed back further still - check with the London Borough of Wandsworth's planning department, or a builder who already works locally, before finalising a design.