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House Extension Professionals in Portsmouth, Hampshire

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Portsmouth / 25 mi
Architects & Architectural Designers
House Extensions
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186 Professionals

Featured Reviews for House Extension Professionals in Portsmouth, Hampshire

JETArch Design LTD
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars10 April 2025
“Having had been left a plot of land from my fathers estate(pony land) I asked James of JETArch DesignLTD to design two houses and obtain full planning permission from my local council planners department. Over the course of 7-8months Not only did James achieve this, planning was granted at the first attempt. I would point out this was not straight forward and many surveys were carried out and had to be evaluated. Throughout the whole experience I was kept up to date with the progress going forward until completion. I have no hesitation recommending (James)JETArch for any building project you may need undertaking. Michael Rawlings”
dwell design
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars28 March 2017
“dwell design began working for us on the extension and refurbishment of our new home after the plan drawing company we had initially been recommended totally let us down. By comparison Anthony and the team were thorough, interested, passionate and knowledgeable with much appreciated attention to detail. I felt that Anthony took the time to understand what it was that we were looking for in our home and tailored the plans to suit what we really needed, coming up with a design that worked for us. The final result is all we had hoped for and more and would not have happened without all the hard work from the dwell team. They have all been a pleasure to work with.”
The Classic Barn Company
House Extension Professionals in Portsmouth, Hampshire
Average rating: 5 out of 5 stars27 November 2022
“After steering us through planning, the build went smoothly, with good project management and communications. Our project was for the one of their barn designs to connect to our house and their architect artfully incorporated this into the design. We were kept informed at every stage and communications went well with each member of the Classic Barn's team. The designs are well insulated and the featured oak work is really eye catching. We are absolutely delighted and look forward to many years enjoyment.”
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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 Portsmouth.

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?
186Local Pros on Houzz Who Serve Portsmouth, Hampshire
95,000+Total Number of Reviews Left by Homeowners
Are you considering a house extension? On Houzz, you can find an extensive selection of Portsmouth 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 with a strong track record of creating bespoke, high-quality extensions in Portsmouth 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.