Extension Architecture is one of the leading Architecture & Planning Consultant practices in London. We are a small group of designers and thinkers who specialise in house extensions London, planning applications, building regulation drawings, loft conversions london and project management. If you are looking for reliable architects in London to take you all the way from creative direction to the ground up, extension architecture is here to help.

Due to us having over 11 years of expertise and experience in the industry, our team of architects in London are able to deliver an extensive range of services. From a variety of house extensions, such as flat conversions and single and double storey extensions to new builds and commercial, our team are able to work with any property type and help you to create your dream space.

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About Report

Extension Architecture is a dynamic, forward thinking architects' company based in Battersea London, made up of a team of in-house creative architectural and interior designers and experienced planning consultants. Our competitive edge is our extensive planning knowledge and our ability to find solutions for the seemingly impossible.

House Extensions Report

Extension Architecture's work always varies; our projects range in complexity and scale from house extensions and refurbishments to Change of Use and New builds. We are a leading Architectural and Planning practise that specialises in problem solving and maximising space and value for people looking to improve their property.

Single Storey Extension Report

If you've outgrown your home or want to add value, then a single storey extension could be the ideal solution for you. Our architects in London at Extension Architecture have extensive knowledge and experience in dealing with house extensions London and single storey extensions in London boroughs, such as Ealing, Merton, Hackney, and Kingston and Chelsea.

Double Storey Extension Report

Opting for a double storey extension not only gives you that extra space, but will also add value to your property. Many homeowners consider a two storey extension over a single storey extension, as whichever option you choose, you only need one roof and set of footings. Thus you get more value for your build and that extra space for bedrooms or bathrooms you require with a house extension London.

Loft Conversion Report

Converting your loft is one of the easiest and cheapest ways to boost the square footage of your home. If you're looking for more space and to add value to your property, it pays to find out if there really is cash in the attic! A loft conversion London offers some of the best returns when it comes to investing into a house extension London compared to the cost, and with almost 30% of your home's floor space tied up in your loft, why not go up?

Reviews (10)

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Sunaina Shori

Oct 03, 2021

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We engaged with several members of the team for different elements of the project including a junior PM, an interior designer and the owner himself with varied experiences.
EA gained its 5 star review because of our experience of working with Steph who was our architect and a thorough professional!
Our project is quite ambitious as we are converting our detached chalet bungalow into a house - my brief to Steph was wanting a final design where you had no idea of it ever being a bungalow. She delivered in spades! Steph has designed us our dream home!
I enjoyed the structured discovery stage where

Joo Lee

Aug 28, 2021

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They helped me with the planning for the rear extension and the internal reatructuring of my new house. Very pleased with their service, they were really helpful and professional.
Zak who did the planning drawing was very kind and profissinal. Mal and Young, project managers who helped me through every stage of the project were fantastic, they were very helpful, responsive and professional.
Highly recommended.

Brendan Freeman

Aug 18, 2021

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Positive: Responsiveness
Contacted the firm to enquire on the installation of potential roof terrace on our maisonette. Gave a very honest and informative response; it's unlikely we will get planning permission. I was very impressed and will consider them for future work.

Tim Ronayne

Mar 22, 2021

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After approaching a few firms to design, manage and build our side return extension, we settled on Extension Architecture after they made a good proposal and came across well. I can happily say that we are really pleased with the end result. Our house has transformed into exactly what we were imagining.
Youno - the director is clearly passionate about getting the right result, and has a good eye for aesthetics and attention to detail.
There were a few missteps and miscommunications from one project manager, but thankfully the firm responded well and another project manager, Young, took over and

Zac Dillon

Jan 02, 2021

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Working with Nadir at Extension Architecture was a truly trouble-free experience. They explained the process and was always at hand whenever I had questions. I trusted their judgement whenever they provided amendments to my initial plan and was thoroughly happy with the end result! 11/10

Barny Darby

May 23, 2020

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Positive: Professionalism, Responsiveness
We worked with EA to do all design and planning permission and then management of the build. The project was managed very well and was completed in September 2020 to a very high standard - we're very happy with it!

Mili Fernandes

May 06, 2020

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I really enjoyed the process of working with EA for getting my ideas onto paper and the subsequent construction. They provided some novel and common sense suggestions to help the application for gaining approval whilst allowing me to make best use of the space available.

Neal Lee

Nov 03, 2019

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Very pleased with their planning knowledge and managed to get the 8m extension that I had wanted Their interiors team did a fantastic job in creating my ultimate pad. Really pleased with the fitted wardrobe and kitchen design they designed and their recommended builder fitted. It was sourced from Germany and Italy at a price that beat Sharps and Hammond's.
Have recommended 2 neighbor already.

Andre Sarkis

Aug 20, 2019

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Extension architecture team was very polite and professional. they made the whole process so much easier and clearer. Any questions I had were answered. Planning went through with no issues and they helped every step of the way, Many Thanks!

Jessica Brickley

Jul 22, 2019

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I have been impressed with EA thus far. They were very creative in their approach with my loft and extension from the onset with their immersive design. I did pay a little more for the 3D service, but it was well worth it as it could allow myself and my partner what was going to be built. This also helped with my local planning officers in Kingston that can be a nightmare to visualise that I was not having something just ugly. I felt comfortable going into the build and their 3D's look exactly like what I have now built.
Thank you team for your comprehensive service from beginning to end.