Home Extensions in Twickenham
Planning a Home Extension in Twickenham
We have completed 47 home extension and loft conversion projects across Twickenham, covering TW1 and TW2.
Twickenham has a wonderful stock of Victorian and Edwardian terraces and semis. Most of them have a side passage. And most of the clients who call us from Twickenham have the same idea in mind — open up the ground floor, connect to the garden, and create the family space the original house was never designed to have.
The L-shaped wrap-around extension was practically invented for houses like these. And we have done a lot of them.
What we do in Twickenham
Our Twickenham work covers the full range — rear extensions, L-shaped wrap-arounds, infill extensions, loft conversions, and combinations of all of the above. Design, planning and technical drawings all handled in-house by our team.
The L-shaped wrap-around extension — combining a rear extension with a side return infill — is perfectly suited to the Victorian and Edwardian terrace, and to Richmond Borough’s planning approach, which allows extensions that exceed the standard depth guidance provided the eaves height is carefully managed at 2.2 metres.
Planning permission in Twickenham
Twickenham falls within the London Borough of Richmond upon Thames, one of the most heritage-dense boroughs we work in. More than any other area, Twickenham is associated with the L-shaped single storey wrap-around extension — the combination of large Victorian and Edwardian terrace stock, side passages, and Richmond’s approach to depth and eaves height creates ideal conditions for this type of project.
The Thames passes through the borough, and riverside areas in Twickenham have flood risk implications that must be addressed before an application will be validated. Tree surveys and arboricultural impact assessments are also required more often here than in many other boroughs, given Richmond’s significant tree canopy.
For the full guide to planning across Richmond Borough: Richmond Borough planning guide
What our Twickenham clients say…..
“This project combined a rear extension and a loft conversion to completely transform our client’s home. The result is a property thatfeels light, spacious and modern while still being sympathetic to the original character of the house.”
A recent project in Twickenham
Rear Extension and Loft Conversion, Twickenham
A recent Twickenham project combined a ground floor extension with a loft conversion to transform a period property into a modern, light-filled home while remaining sympathetic to the character of the original house — a consideration that matters in Twickenham, where several conservation areas mean design quality is scrutinised carefully.
At ground floor the extension created a bright open-plan kitchen and dining area that now forms the heart of the home. The layout was also reconfigured to create two separate reception rooms at the front — a practical solution that gives the family both open everyday space and the option to close a door and have a quieter room separate from the main activity areas. Large glazed doors and windows flood the extension with natural light and create a direct connection between the interior and the garden.
The loft conversion added three further spaces: a double bedroom with good headroom, a stylish en-suite bathroom, and a dedicated home office. This is a practical combination for a household with remote working as part of daily life — the study sits at the top of the house, away from the noise of the ground floor.
See this project
Frequently asked questions
Many single storey wrap-around extensions are achievable under Permitted Development, but this depends on the depth and your property’s specific position. Anything in one of Twickenham’s conservation areas usually needs a full planning application. We confirm your exact position at the free consultation.
Richmond Borough allows single storey rear and wrap-around extensions to exceed the standard depth guidance, provided the eaves height is carefully managed at 2.2 metres. This is one of the reasons the L-shaped wrap-around works so well on Twickenham’s Victorian and Edwardian terraces.
Yes, several — which is why design quality and how an extension relates to the street are scrutinised carefully here. This affects materials, scale and detailing more than it affects whether an extension is possible at all.
Riverside areas of Twickenham do carry flood risk implications that must be addressed before an application will be validated. We check your flood zone position before any design work begins.
Book a free consultation in Twickenham
If you are planning a home extension or loft conversion in Twickenham, call us on 020 3865 4917 or 0800 043 8838.
We will check your conservation area position, confirm your flood zone status, and give you clear, honest guidance on what is achievable — including whether the L-shaped wrap-around is the right fit for your property.
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