Kitchen Extension Cost in Fulham: 2026 Price Guide

Ask a local builder what the most common job in Fulham is, and a rear kitchen extension is usually near the top of the list - understandable given Victorian and Edwardian terraces around Parsons Green and Eel Brook Common, with newer riverside developments towards Sands End and Imperial Wharf 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

As with any ballpark figures, these cover the building work and a standard fit-out only - popular add-ons like bifold doors, roof lanterns and underfloor heating will move the total upward, sometimes significantly.

What affects the price locally

The single biggest cost variable for a kitchen extension in Fulham tends to be access rather than the extension itself - narrow terraced streets with no side passage mean materials and spoil go through the house, which shows up in the price. On top of that, the Parsons Green and Hurlingham conservation areas - the borough has 44 in total, covering about half its land often means closer attention to matching brick, roofline and windows, adding cost even where planning permission itself isn't required.

Foundations are the other variable: older Victorian and Edwardian houses near the Hurlingham Club and North End Road Market were often built on shallow footings, so a structural engineer may specify deeper or more extensive foundations than a newer property would need.

Do you need planning permission?

Many single-storey rear extensions fall under permitted development, but there are limits on how far you can extend without full planning permission, and those limits are usually tighter for terraced and semi-detached houses than detached ones. If your home is in one of Fulham's conservation areas, permitted development rights can be restricted further, so it's worth checking with the London Borough of Hammersmith and Fulham's planning department - or a builder who works in the area regularly - before you commit to a design.