Kitchen extensions are still one of the top home upgrades in the UK. They give you more living space and can bump up your property value. In 2025, a typical kitchen extension costs anywhere from £50,000 to £120,000, depending on size, materials, and how complex the build is.
It's smart to get a handle on these costs early. That way, you can plan better and (hopefully) dodge any nasty. Here's how costs will break down for an example 30m² single-storey kitchen extension (mid-range specification, £82,500 budget).
Structure and Shell (circa. 60% of budget). Average Extension Cost in 2025 The national average cost of a single-storey extension in 2025 ranges between £2,200 and £3,300 per m², depending on region, specification, and design complexity.
A typical 30 m² extension (e.g., open-plan kitchen/living space) could therefore cost between £66,000 and £99,000, excluding VAT and professional. Connect with kitchen fitters near you on MyBuilder FAQ Common questions about kitchen extension costs Average kitchen extension costs A well-planned kitchen extension allows more room in your home for cooking, dining or simply gathering. Often integrating more natural light, creating a brighter and more inviting area for you to enjoy.
Discover your complete kitchen extension cost guide for 2025 in the UK. Get detailed budgeting tips, timelines, and expert advice to maximise your investment. The average kitchen extension cost is around £30,000 in the UK.
Completing a kitchen extension typically takes between 5 - 10 weeks. In this kitchen extension cost guide, you'll find: A breakdown of the cost of a kitchen extension, including typical costs for different-sized kitchen extensions and what a kitchen extension costs per m² in 2026. Discover the true kitchen extension cost, covering cost per m2, interior cost considerations and hidden costs for London & Surrey.
Kitchen Extension Costs In 2025 (9 Price Factors UK) Kitchen extensions vary in size and convenience depending on your requirements and budget. But, you can be certain of one thing. In the UK, you'll reap the money you spent out building a kitchen extension, many times over.
Extension Costs in the UK (2025) We asked: "From recent experience, what would you expect the construction cost of a 'typical' 10m² single-storey kitchen extension to be? *A single space, including kitchen (fitting and appliances) cost but no bathroom or other joinery. Includes all finishes, lighting, heating, decorations, VAT. Excludes professional fees." UK Average 10m² Kitchen.
A kitchen extension in the UK can cost between £40,000 and £200,000 depending on size, type, location, and materials. For a 30 sqm extension, costs range from around £37,000 to £97,500 outside London, and up to £75,000 in London. Larger or more complex projects, like wraparounds or orangery extensions, will be more expensive.