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Architectural planner for new house extension in Aylesbury by Extension Designs Ltd

Extension Designs Ltd prides ourselves on the quality of our architectural planning services. Client satisfaction is paramount, and we welcome feedback from house extension and conversion projects we have worked on in Aylesbury, Berkhamsted and High Wycombe.

FAQs and Testimonials: Welcome


We'd love you to take a minute or two and read our customer testimonials below as these will give you a good indication of the way our architectural planning company operates.

We've also added a section for architectural FAQs, which we will be updating soon. If you need planning advice for your property, Extension Designs Ltd is here to guide you through the design process, every step of the way.

Get in touch today to discuss how our architectural services can help your building project.

New spacious kitchen extension in Aylesbury



'Alan designed a rear extension and loft conversion for our 3-bed semi. We are extremely pleased with the result and Alan provided a great service. He listened to the brief and presented drawings that met our needs very well, creating solutions to maximise the utilisation of space, including a utility room and a downstairs WC. The drawings were delivered on time, and Alan dealt with all planning applications etc. taking away a lot of stress from us. We can highly recommend Alan and would have no hesitation in using his services in the future.'


“I have had the pleasure of using Extension Designs on a few projects over the years, one of them being my own extension. I cannot speak highly enough of the service that Alan provides. From the vaguest of notions, he turns them into a working plan and has some absolutely fantastic ideas and comes up with incredible designs. Couple that with his knowledge of regulations and a hands on approach to dealing with the planning process and you have the complete package. Anyone thinking of extending or building need look no further than Extension Designs.”


‘I have to say that Alan and the designs he has created are perfect for us. We gave a brief and he knew exactly what we wanted. Thank you so much for all the time you spent on making our dream home. We are so happy with the progress on the project and the ideas you came up with to make the most of the space we had available. Thoroughly recommended.”


Bear with us, we will be adding some content here shortly.

Extension Designs Ltd will shortly be adding the answers to some frequently asked questions to this page.


We are based in Aylesbury, Buckinghamshire, and we offer our architectural planning and design services across Chesham, Amersham, High Wycombe and Berkhamsted. We offer a no fee initial appointment at your home to discuss your requirements.

Call us today on:


07973 501676

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