Essex's #1 architectural design firm

With the most 5-star
Google reviews

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A strong stable company you can rely on.

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Complete package containing everything you could need.

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Wherever you are in Essex, we’re here to help.

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Essex architects
that hit the mark every time.

With 5,000+ projects to our name

No fluff, just home extensions done right

Hear it from our customers

5.0
Based on 60 reviews
powered by Google
Jack Dev
08:58 04 Mar 25
I was looking for an architect in Billericay and came across Kirkwood. They designed my single-story rear extension, which includes an open-plan kitchen and an internal knock-through. The architects and structural engineers were fantastic and really understood what I wanted to achieve. Kirkwood also put me in touch with local builders who were reasonably priced and completed the extension without any fuss. If you’re looking for a reliable Essex architect serving Billericay, I’d definitely recommend Kirkwood.
Maria Krystal Humphrey
11:20 03 Feb 25
We had a single-story house extension built in Thurrock, Essex, by the builders that Kirkwood passed us onto. Kirkwood's architects did a really good job, so we were pleased we went to them rather than a design-and-build company that just subcontracts the architectural work out.
Grace Biddiss
09:27 02 Feb 25
We appointed Kirkwood as our architects for a double story and wrap around kitchen extension in Billericay, Essex. They provided us with architectural plans, structural engineering and building regulation drawings. The team was professional from start to finish and the builder they recommended has done a faultless job. You definitely get what you pay for, highly recommend. Thanks!
Freyja
19:14 01 Feb 25
We’ve worked with residential architects before, but Jamie and his team, especially Nathan, were fantastic. Kirkwood designed plans for our double-story side extension, loft conversion, and single-story rear kitchen extension, and we knew we had to choose the right company since it involved our entire home.Based in Brentwood, Essex, we were also introduced to builders and tradespeople through Kirkwood, and they were excellent—professional, respectful, and a pleasure to work with. If we ever take on another project, we wouldn’t hesitate to use them again.
Harry
14:41 01 Feb 25
I was skeptical about Kirkwood’s 5 star reviews but now I’m one of them. Incredible service, especially for the money we paid. They wasn’t the most expensive but for the standard of service we received, they defiantly should have been. They done the architectural plans for our home extension in Chelmsford. The architect was amazing at creating our open plan kitchen and dining area. The structural engineer was quick, polite and drunk tea like it was going out of fashion. Strongly recommend if your considering a architect for your home extension in a Chelmsford.
Riley Russell
13:58 31 Jan 25
Kirkwood done a fantastic job on our architectural plans for our new single story kitchen extension in Brentwood. They gained us approval from the council and also provided the structural engineering for the project. We used their recommended builder who so far, we cannot fault one bit. Thanks again and highly recommend.
iansalsbury
10:54 24 Jan 25
The Kirkwood team were a pleasure to work with and have in our house. What can be a stressful time was made a lot easier by a team who build with quality, communicate clearly, and address and action any questions you raise....however small or large.We now have an amazing extension, and would be happy to use the team again.
Natalie Moore
12:29 23 Jan 25
Jamie and team are always helpful and very knowledgeable. Work on our kitchen extension carried out professionally and to high standard from design to build completion. A fantastic job, and very pleased. Many thanks
Kelly Pye
08:27 22 Jan 25
Jamie has provided lots of advice on house improvements including different options for extending as well as the possibility of a loft conversion. He responds quickly to queries and is full of knowledge! I wouldn’t hesitate to recommend him
Boris
19:35 12 Nov 23
Kirkwood Design and Build Builders, Wickford did a fantastic job on our extension in Billericay. They helped with planning permission, design, and build. Professional company through and through. Given that we haven't done such a large project before, we were a bit nervous and had a lot of questions. Jamie and his team from Kirkwood Design and Build Builders was good putting us at ease and now that we are fully complete with all our work, we further appreciate how professional this company is. Would highly recommend.
Holly Luckin
09:29 11 Nov 23
Nothing was to much hassle and Jamie is lovely!
john rocke
11:33 09 Nov 23
Great company and very professional. Nothing was a problem, very helpful and will definitely use them again. Have already given their details to a friend of mine.
Dave Lynch
19:32 08 Nov 23
Work carried out to a very high standard, very pleased with the results.
Sharon Gormer
13:06 07 Nov 23
Very professional company, helpful and friendly staff.
Aaron Tutton
11:15 07 Nov 23
Great builders, very professional and perfectionists! Thank you for such an amazing job
Olly Tait
13:28 21 Apr 23
Jamie and his team were so profesional from start to finish and made the job a joy to watch our dream come together.Very knowledgeable and contactable throughout the process.Couldn't ask for a better outcome and value for money.Will definitely be recommending and 100% will use again!5 star!!!
Sandie
20:03 20 Jan 23
I highly recommend the Kirkwood team! Exceptional workmanship, clear communication, Jamie & his team have provided the utmost as a polite & professional team! Very satisfied customer, looking forward to planning our loft conversion this year with you guys! Many thanks!
About us

Kirkwood is a trusted, family-run architectural design and home extension planning company. We are Essex architects that advise on build costs right from the start, so the project can then be designed to a suitable budget. Here you can get an idea on build costs and see some of the areas we cover.

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Wallet icon representing Kirkwood’s cost-effective architectural design services for home extensions in Essex.
5-Star reviews
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We can also provide

Additional services if required

3D Kitchen Designs

See your kitchen in 3D with Howdens—we handle everything for you.

Build Costs

Don't design over budget, our Essex architects offer cost advice.

Build Inspection service

Experts inspect your builder's work confidentially.

Use our vetted builders

Kirkwood’s network of trusted trades delivers competitive quotes.

Kitchen discounts

Kirkwood trade discounts deliver premium Howdens kitchens affordably.

Construction agreement service

We manage quotes and contracts with Kirkwood Build Contracts, saving you time and money.

Comprehensive choice

We manage every detail of your extension, from quotes to contracts.

Piled foundations

As extensions increasingly require piling, Kirkwood specializes in this area.

Essex | Architectural Design & Planning

Serving Essex & surrounding areas

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