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House Extension Professionals in Welwyn, Hertfordshire

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Welwyn / 25 mi
Architects & Architectural Designers
House Extensions
1 – 15 of 1,609 professionals
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1,609 Professionals

Featured Reviews for House Extension Professionals in Welwyn, Hertfordshire

Fabric Space
House Extension Professionals in Welwyn, Hertfordshire
Average rating: 5 out of 5 stars1 February 2018
“We have worked with Fabric Space on several projects and are so proud of the end result. They have interesting ideas, attention to detail and really care about their clients. If you'd like a practice that offers unique solutions then I would highly recommend Fabric Space.”
Sheldon Peever Studio Ltd
House Extension Professionals in Welwyn, Hertfordshire
Average rating: 5 out of 5 stars7 May 2015
“We employed Christine Peever to provide us with architectural services to renovate a 4 storey property dating back to 1912. The property was in a very poor state and we had no experience of such a project. Christine was an excellent listener to our needs and I felt she understood our strengths and weaknesses as her clients and adapted herself to us both as individuals to create our vision. Her note taking was faultless and she carried out all changes with exactness and efficiency, of which there were many! We also have to thank her for her endless patience during the decision making processes. She pushed us hard to make as many decisions as possible before going out to tender and this has inevitably assisted us with keeping our budget under control. We look forward to welcoming her back to the property shortly so that she can see what she helped us to create.”
Marlin Design Ltd
House Extension Professionals in Welwyn, Hertfordshire
Average rating: 5 out of 5 stars21 October 2020
“Great service from Mark, i would highly recommend anyone considering getting professional drawings for your house extensions to use Marlin Designs, not only did they delivered on time but on budget, Mark was always on the other end of the telephone to answer any queries you may have. I found Mark to be very professional and easy to work with throughout the process, I would definitely recommend his services to anyone.”
Shinz Design Consultancy
House Extension Professionals in Welwyn, Hertfordshire
Average rating: 5 out of 5 stars26 July 2017
“Yihyi has helped our family on a couple of occasions, and both have gone so well that we intend to get her involved in a third project. We can't recommend her highly enough. She helped my brother turn a two bed one bath flat into a three bed two bath flat, creating a great family home from a small space, with flair and care - but without a huge budget. A couple of years later, she has helped me update my loft space and create a living and sleeping space that we absolutely love, and also reworked my bathroom, shower room and small toilet - all of which I love. If you get the chance to hire her - do it!”
DPE Architecture
House Extension Professionals in Welwyn, Hertfordshire
Average rating: 5 out of 5 stars14 May 2021
“Doug is fantastic. I highly recommend. His attention to detail is fantastic and had lots of great ideas on how to improve the project. Having taken the project on after we discarded our previous architects, he came in and made many crucial improvements to the project. Then managed the project through to completion really well, liaising with builder and client very effectively and professionally. He has a real passion for what he does and that comes through. We are extremely happy with the result. I'm already thinking about the next project with him.”
Ale&G - Design Solutions
House Extension Professionals in Welwyn, Hertfordshire
Average rating: 5 out of 5 stars12 May 2021
“Alessandra supported us with our kitchen renovation. She spent with us half day at Magnet to design our kitchen, select the materials and the colours. She was very careful and detailed oriented to make sure the kitchen we were getting was exactly what we needed/wished for. Important to note that Alessandra is open find solution for what you need/wish for (different from other architects who wants to put their mark and leave their “stamp” in their designs). She did delivered not a kitchen, but what we called a master piece of art - her careful selection of colour and materials + solutions to corners and panels at the top/at the bottom to hide electrics paid off having her in that work. Everyone who comes to our house or lastly who sees our kitchen from Zoom/Skype or Team spots how beautiful it is (not only beautiful, but for us who uses the kitchen it is entirely functional, easy to clean and all sorted). Thank you Alessandra - you made us very happy and ensured lockdown could be easily managed with our new lovely and super functional (easy to clean) kitchen! Before Alessandra - red kitchen. After Alessandra - the modern, atemporal grey/blue kitchen (please see pictures).”
Design Spec Ltd
House Extension Professionals in Welwyn, Hertfordshire
Average rating: 5 out of 5 stars15 April 2016
“Extremely pleased with the service we received from James at New World Designers Ltd. He couldn't have been more helpful, visiting us on numerous occasions to discuss what we wanted, offering ideas and suggestions and saying what was or wasn't possible. He also kept in regular contact throughout the whole process to keep us informed of what was happening. We will definitely be using them again and can't recommend them highly enough.”
Building Tectonics Ltd
House Extension Professionals in Welwyn, Hertfordshire
Average rating: 5 out of 5 stars4 September 2015
“Our conservatory included a kitchen, dining room/lounge with no doors & a plastic roof so we were very cold in the winter. We contacted Building Tectonics who transformed our uncomfortable space into a very light garden room by taking the walls down between the kitchen & dining room/lounge & adding a proper roof. We now enjoy cooking, eating & relaxing in a great open space”
Go Plans
House Extension Professionals in Welwyn, Hertfordshire
Average rating: 5 out of 5 stars31 December 2022
“Our experience with Go plans has been excellent. They arranged a home visit at very short notice, listened to our suggestions and compiled the initial drawings relatively quickly. They also successfully handled the whole planning permission process for us and provided a very fast and professional response to the requests and changes requested by the planning officer. We would definitely use them again for future work.”
Randa Kort Interior Architecture & Design
House Extension Professionals in Welwyn, Hertfordshire
Average rating: 5 out of 5 stars2 January 2022
“We were a little wary about signing up an interior designer for our extension project because most of the other professionals we used seemed to over-charge and tended to cease involvement as soon as they were paid. But Randa was different and undoubtedly the best value of any of the the professionals we used. To begin with she solved a problem with the interior walls that immediately saved us hundreds of pounds and overall she took the extra time and effort to see the project and her ideas through to completion. She was generous with her time, included a design for our kitchen even though that was not part of her remit and answered our questions promptly when we needed her advice. She also kept an eye open to make sure the builders weren't taking short-cuts and generally seemed to care. Some of her choices were good money-savers, sometimes her suggestions were too expensive for us but she was happy to recommend something different if it was not within budget.”
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Architect or Architectural Designer FAQs
A house extension is a construction process that involves expanding the footprint of your existing home. This could be extending outwards, either to the side or rear of the house, or upwards by adding another storey. House extensions provide extra living space and can significantly increase the value of your property.

House extensions can be categorised based on direction, structure and function. The main types include rear extensions, side return extensions, wrap-around extensions, and double or single-storey extensions. More specific ones could be kitchen extensions, loft conversions, basement conversions, garage conversions or conservatories. Select the type that best suits your property and meets your space needs, if you are unsure, speaking with a local home extension builder in Welwyn.

Generally, house extensions are worth the investment. They provide additional living space and can dramatically increase the resale value of your home, often covering the initial investment cost. However, plan carefully and choose a reputable house extension builder to ensure a high-quality build that will add value to your property.

The cost of a house extension can vary significantly based on several factors, such as the size, complexity of the design, quality of materials used, and geographical location. However, as a rough estimate, a single-storey extension can range from £1,000 to £2,000 per square metre, whereas a two-storey extension can start at around £1,500 per square metre.

Planning a house extension involves several stages, including idea generation, design, planning permission, and construction. Consult with a house extension architect to create a design based on your needs and budget. Ensure to check with your local council about planning permissions. Finally, choose a reputable house extension builder to bring your vision to life.
Why Hire Architects & Architectural Designers on Houzz?
1,609Local Pros on Houzz Who Serve Welwyn, Hertfordshire
95,000+Total Number of Reviews Left by Homeowners
Are you considering a house extension? On Houzz, you can find an extensive selection of Welwyn house extension professionals near you, eager to turn your vision into a reality. Whether you're planning an extra bedroom, expanding your kitchen or designing a brand-new workspace, these professionals have the skills and expertise to make your project successful. House extension professionals include architects who can draw up detailed plans and builders who will execute them to the finest standards.

Choosing a house extension professional on Houzz ensures peace of mind, knowing that you’re in safe hands. They come highly recommended with a strong track record of creating bespoke, high-quality extensions in Welwyn in a wide range of styles and budgets. Whether planning a new kitchen extension, adding a new storey, or just wanting more living space, find your house extension solution with us.

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