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House Extensions in Richmond
Extensions for Richmond homes. Planning handled, fixed written quotes, one local team.
- Free site visit and feasibility check
- Permitted Development and conservation area advice
- Architectural drawings and planning application to Richmond upon Thames council
- Structural calculations and steel design
- Party Wall notices where needed
- Building Regulations application and inspections
- Groundworks, foundations, drainage and masonry
- Roof, insulation and rooflights or lantern
- Bi-fold, sliding or French doors
- Electrics, plumbing and heating
- Plastering, flooring and decoration
- Building Control completion certificate
Richmond's Victorian and Edwardian terraces and semis suit side return and rear extensions that open the back of the house onto the garden. In Kew and North Sheen, the side return is the most common request; in East Sheen and Ham, larger semis often suit a wraparound.
The London Borough of Richmond upon Thames has a very high number of conservation areas and expects extensions to be well designed. Many Richmond extensions need full planning permission, and we prepare drawings that suit the house and the street to give the application the best chance.
We are based in Hounslow, a short drive away, and the same team runs your job from start to finish.
Richmond (TW9, TW10), Kew, North Sheen, East Sheen, Ham, Petersham, St Margarets, Twickenham
Local team. Based in Hounslow, so visits and supervision are easy.
Fixed written quotes. Labour and materials set out line by line before we start.
Planning and Building Regs handled. From the first drawing to the completion certificate.
Rated 5 stars on Google. See what our customers say.
Fully insured. Public liability cover on every project.
How much does a house extension cost in Richmond?
Most extensions cost between £1,800 and £2,800 per square metre, depending on the finish. A typical 20 to 25 square metre kitchen extension usually costs £35,000 to £60,000. We give you a fixed written quote after the site visit.
Do I need planning permission in Richmond?
Many single-storey rear extensions are Permitted Development. Side and wraparound extensions, and most work in conservation areas, need planning permission from Richmond upon Thames council. We check your address before anything is drawn.
How long does an extension take?
A single-storey rear or side return extension usually takes 10 to 16 weeks on site. Planning, if needed, adds about 8 weeks before we start.
Book a free site visit and get a fixed written quote. We cover Richmond, Kew, East Sheen, Ham, St Margarets and Twickenham. We reply within 1 working day.