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House Extensions in Twickenham
Extensions for Twickenham, Whitton and St Margarets 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, common on Twickenham terraces
- Building Regulations application and inspections
- Groundworks, foundations and masonry
- Roof, insulation and rooflights or glazed roof
- Bi-fold, sliding or crittall-style doors
- Electrics, plumbing and heating
- Plastering, flooring and decoration
- Building Control completion certificate
Twickenham covers a lot of different housing. St Margarets and Strawberry Hill are full of Victorian and Edwardian terraces and semis, where a side return extension is the classic way to get a bigger kitchen. Whitton and Heathfield have plenty of 1930s semis that suit a full-width rear or wraparound extension.
Twickenham is in the London Borough of Richmond upon Thames, which has a large number of conservation areas and expects extensions to be well designed. We prepare drawings that suit the house and the street, and we manage the planning or Permitted Development route with the council for you.
Our team is based a short drive away in Hounslow, so we can visit quickly and supervise your build closely.
Twickenham (TW1, TW2), St Margarets, Strawberry Hill, Whitton, Heathfield, Fulwell, Teddington, Isleworth, Hounslow
Designed to get approved. We know Richmond council expects good design and we plan for it.
Fixed written quotes. Labour and materials set out line by line.
Party Wall handled. We manage the notices with your neighbours.
Rated 5 stars on Google. See what our customers say.
Fully insured. Public liability cover on every project.
How much does an extension cost in Twickenham?
Most extensions cost between £1,800 and £2,800 per square metre. A side return or rear extension of 20 to 25 square metres usually costs £35,000 to £60,000, with wraparound extensions costing more.
Do I need planning permission in Twickenham?
Many single-storey rear extensions are Permitted Development. Side returns and wraparounds usually need planning permission from Richmond upon Thames council, and more extensions need permission if your house is in a conservation area. We check your address before we draw anything.
How long does a side return extension take?
Usually 10 to 14 weeks on site, plus around 8 weeks for planning if it is needed.
Book a free site visit and get a fixed written quote. We cover Twickenham, Whitton, St Margarets, Strawberry Hill, Teddington and Isleworth. We reply within 1 working day.