Professional house extension design and build across Central and Greater London, adding valuable living space to your home. GS Renovation — trusted, professional, 30+ years experience.
A house extension is one of the most effective ways to add space and value to your London home. Whether you need a larger kitchen, an additional bedroom, or a home office, extending your property is often more practical and cost-effective than moving. GS Renovation has been designing and building house extensions across London for over 30 years, delivering projects that seamlessly integrate with existing properties while providing the additional space modern families need.
London's diverse housing stock — from Victorian terraces and Edwardian semis to inter-war detached homes and post-war properties — each presents unique opportunities and challenges for extension projects. Our team brings deep local knowledge to every project, understanding which extension types work best for each property style and navigating London's complex planning landscape with confidence.
Our house extension service is fully comprehensive, covering architectural design, planning applications, structural engineering, building control, and all construction work from foundations to final decoration. We manage every trade and coordinate every stage, delivering a seamless extension project that causes minimal disruption to your daily life.
Rear extensions are the most common type of house extension in London, typically used to enlarge kitchens and create open-plan kitchen-dining-living spaces that connect to the garden. We build single-storey and double-storey rear extensions, incorporating features such as bi-fold doors, roof lanterns, and structural glazing that flood the new space with natural light.
Side return extensions are particularly popular in London's terraced and semi-detached houses, where a narrow passage or alleyway runs along one side of the property. By building into this space, you can significantly increase the width of your ground-floor rooms — typically the kitchen — creating a much more generous and usable layout. Many of our London side return projects are completed under permitted development rights, avoiding the need for a full planning application.
Navigating London's planning system can be complex, but our experienced team handles every aspect of the regulatory process. We assess whether your extension falls within permitted development rights or requires a full planning application, prepare and submit all necessary documentation, and manage the building control process from initial notice to completion certificate.
What We Offer
Single and double-storey rear extensions designed to maximise garden-facing living space.
Side return and wraparound extensions that transform narrow kitchens into generous open-plan spaces.
Dormer and mansard loft conversions adding valuable bedroom and bathroom space to your home.
FAQ
House Extensions costs in London vary depending on the scope, specification and condition of your property. GS Renovation offers free, no-obligation quotations — call 07472 424 226 or email info@gsrenovationltd.co.uk for a detailed estimate tailored to your London project.
A typical house extension in London takes between 2–8 weeks depending on the complexity and whether structural work is involved. GS Renovation provides a detailed project timeline during your free consultation so you know exactly what to expect.
With over 30 years of experience delivering premium house extension projects across London and London, GS Renovation is the trusted local choice. We offer free quotes, a dedicated project manager, full insurance, building control compliance and comprehensive aftercare on every project.
Contact us today for a free, no-obligation quote and discover how GS Renovation can bring your vision to life.
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