A kitchen extension is the most popular home improvement in the UK. Here's how to plan yours successfully — from design ideas to budgeting and finding the right builder.
A kitchen extension is consistently the most popular type of home improvement project in the UK, and it's particularly in demand across Leicestershire where a large proportion of the housing stock consists of semi-detached and terrace homes with relatively small rear kitchens.
The most common design is an open-plan kitchen-diner, which extends the kitchen into the rear garden to create a combined cooking, eating, and living space. When done well, this transformation utterly changes how a family experiences their home — creating a bright, sociable hub that connects indoor and outdoor living. In our experience building extensions across Leicester, Loughborough, Hinckley, and Market Harborough, this type of project generates more satisfaction from clients than almost any other.
Glazed roofs (either full glass or a lantern light) are enormously popular in kitchen extensions because they flood the space with natural light from above — useful in extensions that may be surrounded by neighbouring walls. Bifold or sliding glass doors across the rear elevation create a seamless connection to the garden in summer while allowing views and light in winter.
For budget planning purposes, allow £30,000 to £80,000 for a full kitchen extension in Leicestershire. The lower end covers a modest single-storey extension with a standard specification; the upper end covers a larger, architecturally designed space with a glazed roof, premium bifold doors, and high-end kitchen fitting. The kitchen itself (units, worktops, appliances) is almost always a separate cost on top of the building work, and a quality kitchen can add £15,000–£40,000 to the total project budget.
When planning the layout, think carefully about the position of the sun. A south or west-facing rear garden will get afternoon sun — ideal for bifold doors that capture it. A north-facing extension might benefit more from a glazed roof to bring in light from above. Your architect and builder should help you optimise this as part of the design process.
One practical point worth emphasising: insist on a detailed, itemised quote before any work begins. Kitchen extensions frequently end up over budget because clients make choices mid-build (upgrading windows, adding underfloor heating, changing the roof specification) that were not in the original quote. Being clear upfront about every element — including the kitchen fitting, flooring, and electrics — prevents budget surprises.
Key Takeaways
- Open-plan kitchen-diners are the most popular design choice
- Glazed roofs and bifold doors bring in maximum natural light
- Budget £30,000–£80,000 for a full kitchen extension in Leicestershire
- Consider the position of the sun when planning window placement
- Always account for kitchen fitting costs separately from the build
