Side Extensions

Plus Rooms has spent years designing and building kitchen extensions across the London area. Our customers can trust our team of extension specialists to provide the highest level of skill and an excellent quality of finish.

Interested in an original kitchen extension that offers extra living space, encapsulates your personal style and meets all of your functional requirements? A side extension could be exactly what you are looking for.

What is a Side Extension?

A side extension expands the ground floor of a home to the side, and is often used to repurpose alleyway space. As they expand homes out to the side, side extensions are ideal for homeowners who are looking for additional space but want to save on garden space.

Side extension ideas

Bespoke Kitchen Side Extensions

We start every extension project by listening to your design ideas and understanding your practical needs. Many people opt for a side extension because they want a larger kitchen or dining space. Alternatively, they want to bring in more natural light, which we can achieve with features such as skylights and bi-fold doors. For an additional cost, we also offer all of our customers the option to have a loft conversion included in their initial quote.

Once you are happy with your bespoke side extension design, our team will bring it to life with the finest quality materials and cutting-edge construction methods. We also understand the importance of those special finishing touches. We will include those additional features that will bring your new extended space to life, such as window frames, light fittings or French doors.

The Plus Rooms team is well-versed in the complexities and challenges associated with house extension projects. That’s why you will be assigned a dedicated project manager, whose sole responsibility is to ensure that your extension is completed on time, within budget and to the highest possible quality.


How Much Does a Side Extension Cost?

The typical cost of an extension can vary, particularly in the London area. There are multiple factors to consider, such as the specific type of extension, the size of your property and structural features such as roofs and doors. For example, a medium side extension with a pitched roof has an average cost of £68,000.

Our extension cost calculator provides a clear guide to costs for different types of extensions offered by Plus Rooms. Simply select what type of extension you are looking for for a quick and easy quote.

Planning Permission for Side Extensions

Our years of experience means we can offer customers an all-inclusive service. This goes beyond the initial design and build and includes permitted development rights and building regulations approval. We are on-hand to advise our customers on all aspects of the planning process, including planning applications and party wall agreements. Find out more about our planning services or review our guide to planning permission for kitchen extensions.

Need help refining your house extension ideas into a single, cohesive vision? Why not browse our bespoke side kitchen extensions? If you’ve got any questions, contact Plus Rooms today.


Find out more about our other home extension types: side return extensionsside and rear extensionswraparound extensionsflat roof extensions, and rear extensions

Our side kitchen extension projects

Kylemore Rd

West Hampstead

Beauval Rd

East Dulwich

Braemar Ave


Bromar Rd


Croxted Rd

Tulse Hill

Dassett Rd

West Norwood

Lime Grove


Midmoor Rd


Revelstoke Rd


Shawbury Rd

East Dulwich

Shenley Rd


Upland Rd 2

East Dulwich

Interested in Kitchen Extensions?

View our wide portfolio of Kitchen projects