Extension Architecture

Architects in London

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1st Floor, Cobden House
231 Roehampton Ln
SW15 4LB

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Contact Numbers




  • Planning Applications
  • Buliding Regulation Drawings
  • Site Survey
  • Project Management
  • Architectural / Interior Design


extension architecture is a team that creates planning permission drawings with creativity and speed.
We have expert knowledge in full planning applications, permitted development drawings, building regulation drawings.
We have excellent track records in approval of permissions. please visit our website www.extensionarchitecture.co.uk

Who we are

We are a leading Commercial and Residential Planning architectural practice with an experienced team of town planners, architectural designers, planning consultants and structural engineers all working together to help you obtain planning permission. We are based in two locations, our London office in East Putney undergoes planning drawings and applications for the Central London areas and our Worcester Park, Surrey office takes care of the planning drawings in the Greater London areas and other regions of England.

Trading Since


Find Us

Our Main Office is in Battersea and our Local office is in Worcestpark



great creative team




I found Extension Architecture through the Independant directory. They were very efficient with their timelines of providing the drawings and plans. And now we have permission for a double storey extension and a dormer roof extension! well worth giving them a call for a consultation.

victoria stevens - 26/08/2015 | report this review

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Products and Services

Kitchen extension

Architectural service on Planning Application on your Kitchen Extension

We can obtain planning permission on your Kitchen Extension and obtain a free kitchen design

Price: £950

We offer these services

  • gallery
  • website
  • Customer Service / Helpline

We offer these payment methods

  • Bank Transfer


Thankyou for your efficient service. Really impressed with the level of service and the speed !

Jules Weyworth

Delighted with the application approval that we got yesterday. As discussed initially, we were dubious of our chances as our property in Weybridge sits in a flood risk area + conservation area. But our full application for the 4m extension to the rear have been approved without any hassle. Also Elmbridge council was able to give us the approval within 7 weeks, so an added bonus. Thanks Especially to Youno who was very helpful in outlining all the pitfalls and guiding us to this position.

Emily and Co.

The response speed from the team was really quick, really efficient. We were able to check the drawing ideas in literally 1.5days of putting down the deposit. We are now waiting for the planning approval. Can’t wait for the 8 weeks to be over.

Laurry Hernderson

Thankyou for the double storey side extension drawings. I was pleased to find out that Extension Architects has really good knowledge on conservation areas, and listed buildings. I was told by two local architects that it was difficult to gain the side extension as the local conservation area guidelines, but with the advise of EA,we regained our lost confidence, and have managed to follow through and now the permission has been received, in my hands! Many thanks for all your efforts and I was extremely happy with the result. Expect a call from my neighbour Maggie, on their extension :)

Lewis Wright

Testimonials are added by the business owner and are not independently verified.

Opening hours

Monday to Friday: 9am - 6pm

Saturday to Sunday: Closed

Key Services

design and build, drawing for planning permissions, drawings for extention, extension architects , Extension Architecture, extension design, loft conversion planning, loft conversion plans, loft conversions planning permission, planning application specialists, planning drawings

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