House Extensions


At Format, we design and build high-quality house extensions that create additional space while enhancing the style and value of your home. Whether you need a larger kitchen, extra living space, or an additional room, our experienced team delivers tailored extension solutions to suit your property and lifestyle.
From initial consultation through to completion, we manage every stage of the house extension process. A well-designed extension is one of the most effective ways to improve both the functionality and long-term value of your home.
Bespoke Kitchen Extensions
What Does a House Extension Involve?
A house extension allows you to increase your living space without the need to move. Depending on your property and requirements, an extension can be designed to blend seamlessly with your existing home or create a striking modern addition.
House extensions may involve structural works, layout reconfiguration, and integration with existing spaces such as kitchens, dining areas, or living rooms. We carefully assess each project to ensure the extension is practical, compliant, and visually cohesive.
Many of our house extension projects are combined with full house renovations or loft conversions to maximise space and functionality. We ensure all works are carefully coordinated, delivering a seamless result across the entire property.








Need inspiration for your kitchen extension? Speak to the Format team today — we’ll guide you through your options and help bring your ideas to life.
Types of House Extensions We Build
We offer a range of house extension solutions to suit different properties and needs:


Rear Extensions
Ideal for expanding kitchens and living areas, rear extensions create open and functional spaces while maintaining garden access. This is one of the most popular extension types for London homes.
Side Return Extensions
Common in period properties, side return extensions make use of unused side spaces to significantly improve internal layouts, particularly for kitchen and dining areas.




Wrap-Around Extensions
A combination of rear and side extensions, wrap-around extensions maximise available space and allow for complete ground-floor transformations.


Double-Storey Extensions
Double-storey extensions provide additional space across two levels, often adding bedrooms, bathrooms, or home offices while increasing overall property value.


Single-Storey Extensions
A practical solution for homeowners looking to add space without major structural changes, single-storey extensions are ideal for ground-floor improvements.


