Danbury Architects
Experienced Danbury architects specialising in custom home extension plans and full architectural services. From rear and side extensions to loft conversions, we design every project with your home and budget in mind. Speak to a trusted architect in Danbury today.
Danbury's #1
architectural design firm
with the highest number of
5-star Google reviews
A secure home extension design company you can trust
Architectural design services in Essex, packaged just for you
No matter where you are in Essex, we’re ready to assist
Precision-driven architectural design that delivers.
With 5,000+ projects to our name
No fluff, just well designed home extensions
As trusted architects in Danbury, we are known for giving honest and upfront advice, especially around build costs, and all before you have spent a penny. Our full architectural design service covers everything from house extension plans and planning permission to structural engineering. As your local Danbury architects, we guide you through every stage and can also connect you with reliable local builders. If you are looking for a team that genuinely cares about getting your project right, we are here to help.
- Avoid costly build errors
- Access reliable builders
- Prevent council disputes
See what our customers are saying on
Google Reviews
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.
We now have an amazing extension, and would be happy to use the team again.
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!!!
Leave the hassle behind – Kirkwood manages everything
Our architectural design services in Danbury
Kirkwood are experienced Danbury architects providing complete architectural design services for homeowners looking to extend or improve their property. From the initial concept through to structural calculations and planning permission in Danbury, our house extension planning package includes everything you need.
Architectural plans & drawings
We produce clear and detailed architectural plans tailored to suit your house extension budget. Some projects require full building regulations drawings for construction, while others only need planning drawings for approval. All our extension plans are accurately scaled, clearly presented, and easy to follow. Every set of plans is created to meet Chelmsford City Council planning requirements.
Planning permission & permitted development
We will advise you on exactly what type of application your house extension needs. It could be full planning, a householder application, permitted development, or prior approval. In Danbury, permitted development is often a common route, but it still requires council approval and a Certificate of Lawfulness. We handle all the paperwork and deal directly with Chelmsford City Council on your behalf.
Building regulations & structural calculations
All house extensions must comply with building regulations. We prepare a full set of technical drawings and include structural calculations where required. These extension plans are used for council checks, builder quotations, and the actual construction. Building regulations drawings can also be provided if your project needs them, though they are not always essential.
Extension planning in Danbury
We offer a complete extension planning service in Danbury, covering everything you need for your house extension. It all begins with a quick Zoom call where we talk through what is possible and give you honest advice on design options and build cost estimates. You can think of us as your own house extension affordability guide, and the planning permission advice is completely free.
How much does an architect cost for a house extension in Danbury?
Architect costs for house extensions in Danbury typically start at around £1,400 and can rise to £3,000 depending on the size and complexity of the project. A smaller single storey extension under permitted development usually falls between £1,400 and £1,700. Detached homes may cost slightly more due to the extra time required for site measurements. While the cost of architectural plans is a small part of the overall budget, it is one of the most important. If the design is wrong at the start, the entire project can go off track. We have been called in to fix enough of them. Work with an experienced Danbury architect and get your extension off to the right start.
Architect costs for house extensions
Architectural design costs vary depending on the size and type of property. Larger homes take more time to survey and need more detailed plans, which can affect the overall price. Double storey extensions are usually the most expensive, while garage conversions tend to be the most affordable. If your extension includes internal layout changes, this can also increase the cost due to the extra design time. As experienced architects in Danbury, we create clear and accurate house extension plans suited to your layout and budget.
What’s included in our architectural design services
Our architectural design services for Danbury house extensions include everything you need to get started with confidence. We begin with a full measured survey of your home, covering both the interior and exterior. From there, we create detailed existing and proposed extension plans, including any necessary amendments. You will also receive a design revision consultation to fine-tune your ideas, followed by full planning application submission and ongoing management with Chelmsford City Council.
It don’t stop there
As experienced Danbury architects, we deal directly with the council on your behalf so you do not have to worry about the paperwork or the process. We also provide a free build cost estimate at the start and can introduce you to trusted local builders with fair pricing. From single storey extensions and garage conversions to full double storey projects, every part of our service is tailored to your needs and delivered to a high standard.
Need help finding a good local builder near you? This guide shares what to look out for and how to avoid costly mistakes.
Kirkwood articles: Expert home extension & renovation insights
Ready to begin your Danbury project?
Book a Zoom consultation, get free expert advice, and move forward with the next stage – your architectural plans.
Get in touch by emailing info@kirkwoodbuild.co.uk or phoning 01268 944233 to schedule a free consultation. Let’s turn your ideas into a well-designed, approved, and beautifully planned extension.










