Extension Plans UK
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We are extension plans UK, the one stop shop for cheaper and faster architectural plans for planning permission and construction. Having your home extended is a great way to increase the space in your property, perhaps you are looking to create a new larger kitchen/diner or even a playroom for your children, with our house extension plans online your possibilities are endless.

Here at Extension Plans UK we are experts in planning drawings online and can create online extension plans for both single storey extension and double storey extension plans all at competitive prices. We are an online reputable team with all of the experience and knowledge for extension planning online, so if you aren't sure where to start we are here to help, for more information be sure to call our team today.
Services
In many cases, extensions can be built without the need for a planning application. You are required however to have Architectural plans created for building control approval. We also strongly recommend submitting plans to the council for approval in the form of a certificate of lawful development.
PorthouseDean Structural Engineers specialise in providing calculations and detailed drawings for Building Regulation applications. Established in 2012, PorthouseDean have assisted thousands of homeowners with structural design services, mainly focusing on residential new build and alteration projects.
Whether that's plans, building regulations or both, please select from the options below to be navigated to the correct drawings. If you need both, be sure to select from the final dropdown for a discounted price. This includes submission to the council, existing and Proposed drawings and a site plan of your property.
Reviews (6)
Phong Luu
Phong Luu
Aug 31, 2021
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Extension plans UK helped me out of a really tough spot that my previous Architecture firm left me in such as incomplete or inaccurate designs which did not pass Building Regulations.
I approached Extension plans UK to salvage the project and they have been absolutely amazing. They were responsive and professional to ensuring the project(2 storey side + rear extension project) was approved by building regulations(BR). They professionally listed all the steps and executed on them without any delays. They clearly demonstrated experience and expertise when it comes to property extension projects
Gerry Saint
Gerry Saint
May 25, 2021
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Positive: Professionalism, Quality, Responsiveness, Value
Recommended! We found Extension plans uk via an on line advert. After researching their company and communicating with them we decided to go with them. They were competitively priced and we found their service to be simple, hassle free and reliable. If you are looking for this kind of service then look no further!
Carolyn Corbett
Carolyn Corbett
Apr 20, 2021
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We can't rate Extension Plans UK highly enough. The service we have received has been excellent and everything has been done in a timely manner. They are very professional operation, extremely responsive to any queries and nothing is too much trouble. From our first enquiry on the 18/01/21 we had our plans passed by the local council on 12/04/21, truly amazing!!
Victoria Behun
Victoria Behun
Mar 17, 2021
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So so happy! Found Extension Plans UK online while looking for affordable architects who don't compromise on quality. We were after something very particular, and from the first time we spoke on the phone following the online quote, I could tell they'd do a great job. They are professional, polite, quick to respond, extremely helpful and very considerate of the client's requests. We got the loft conversion & ground floor extension drawings done, as well as the building regulation drawings, party wall agreement and Thames Water manhole relocation plans. Everything was handled perfectly and saved
Irfan Dabhad
Irfan Dabhad
Sep 09, 2020
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Thank you Extension Plans. Excellent service with always a constructive, thorough, positive approach and good effective communications. I would not hesitate to recommend to others.
Victoria Lancaster
Victoria Lancaster
Sep 01, 2020
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Positive: Professionalism, Quality, Responsiveness, Value
Really pleased with the support we received during our project. The Extension Plans UK team guided us through the process, helped with all the information we needed and always with a very quick turnaround. Would definitely use again in the future and recommend to anyone else looking to complete a home extension project.