Side Return Extensions in North London.
Unlock the narrow alleyway beside your Victorian or Edwardian home and create a stunning open-plan living space.
What is a side return extension?
A side return extension fills in the narrow alleyway that runs alongside many Victorian and Edwardian terraced and semi-detached homes — a feature extremely common across Hampstead, Highgate, Muswell Hill, Finchley and much of North London. By enclosing this previously unused space and combining it with the existing kitchen or dining room, a side return extension can dramatically increase the width of your ground floor, creating a spacious open-plan kitchen, dining and living area. The addition of a glazed roof or lantern over the side return floods the space with natural light — one of the most striking effects in modern home design.
Why North London homeowners love side return extensions
Victorian and Edwardian terraced houses — the dominant property type in much of North London — have kitchens that are often narrow, dark and disconnected from the garden. A side return extension solves all of these problems in one project. By widening the footprint of the ground floor and replacing the solid rear wall with bi-fold or sliding doors, you create a light-filled open-plan space that connects your home to the garden. This is consistently one of the highest-impact projects we deliver.
Common questions
Does a side return extension need planning permission?
Most side return extensions fall under Permitted Development, provided they meet the size criteria (typically no wider than half the original house width). Conservation area properties always require planning permission.
Can I combine a side return with a rear extension?
Yes — a wrap-around extension combines both in a single project, creating a much larger addition. This is one of our most popular projects across North London.
How long does a side return extension take?
Typically 10–14 weeks from start to finish once Building Regulations are approved.
How much will your project cost?
Get an instant cost estimate for your extension, loft conversion, renovation or new build — tailored to your project in under 60 seconds.
Ready to transform your ground floor in North London?
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