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House Extension Professionals in City of Westminster, Greater London

Expand your living space with a well-designed extension, custom built to meet your needs and preferences

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2,263 Professionals

Featured Reviews for House Extension Professionals in City of Westminster, Greater London

CATO creative
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars19 February 2015
“CATO creative have designed and project management our house refurbishment. They've literally done everything for us and have designed a fantastic family home that considers everybody including the cats. Right from the start the level of creativity and imagination has they have shown has been fantastic. I never imagined that we've have fairground lights in the loo, a metal staircase to the loft and a gloss red staircase in the hallway - We have! Throughout the process they involved us fully in the fun bits and left us out of all the hard work. They took care of all the planning and permissions required to start the works. To find a builder the team completed a tender for us helping us appoint the right contractor. During the build they managed everybody making sure it all happened at the right time. Hopefully the photographs will be shared soon.”
Shinz Design Consultancy
House Extension Professionals in City of Westminster, Greater London
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!”
Akita Komar Architects
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars27 July 2020
“We had a very good experience working with Marcin and his team. He is very knowledgeable, understands the client requirements and proposes options to choose from. He is also upfront in suggesting any option that has less probability of approval. They also follow up with the council on the application and ensure they stay in touch with the case officer, answering their concerns and adjusting quickly to get the application approved Thanks Marcin and team for the wonderful work you did in getting positive outcome on both our applications”
Go Plans
House Extension Professionals in City of Westminster, Greater London
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.”
FRAME Studio
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars11 February 2024
“Turning my apartment into a stylish haven was effortless with FRAME Studio. Their team's commitment to excellence and keen attention to detail ensured that every aspect of the remodel surpassed my expectations. The entire process, from conceptual design to execution, took just three months. What's more, they handled everything while I was away, making communication a breeze. I didn't have to lift a finger as they coordinated with their team of contractors. I highly recommend them to anyone in search of top-notch interior design for their apartment remodel. FRAME Studio truly elevates living spaces to new heights.”
RHJB Architects
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars20 May 2016
“Designed a Garden Room extension to the back of a 1960s house in a 20th Century Conservation Area to create an 'integrated living' feel to the ground floor including taking the kitchen into this space. The Architects worked collaboratively with us, taking the design through the Planning process, producing detailed tender documents to enable us to select an appropriate builder. Remaining in the background but available to support us during the construction period.”
Michael Radcliffe Architect
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars18 May 2022
“Mike did an excellent job throughout the duration of our project especially for the part of the time when we were in Australia when he communicated effectively with the building team on our behalf. We have found his organisational skills to be first class and we are pleased with his ability to come up with solutions to problems which are inevitably encountered on the way in a project of this size. He is clearly well respected by those who have dealings with him and we have no hesitation in giving our recommendation”
MODEL Projects Ltd
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars17 January 2014
“Model Projects were a delight, from the initial brief with James who immediately took my requirements and turned them into a fantastic design - spot on first time with no amendments necessary. Kathryn then took over on a day to day basis as project manager and I cannot praise her highly enough. Dealing with the local authority, building control, structural engineers and the many contractors was done with calm and determination and I now have my dream space.”
Trevor Brown Architects
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars14 October 2015
“Trevor Brown was a pleasure to work with. We started with a humble idea of replacing a structurally unsound kitchen with something a bit nicer, and he transformed the project into a fabulous piece of architecture. Trevor is knowledgeable, and has an ambitious attitude to even simple projects. By paying attention to both the structure and the details of the kitchen, Trevor created a space which is a beautiful space and also very functional. Trevor is a busy man, but he replied to emails, and answered the phone when we had queries. He worked well with the construction team and they were able to take a pragmatic approach to solving problems along the way. We exceeded the original budget, but that was at least in part because we chose more expensive options when Trevor offered us choices.”
Francesco Pierazzi Architects
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars4 June 2014
“Innovative design ideas with precise attention to detail. FP provided a thorough service from design to project management (including liaising with builder throughout project; obtaining planning permission; managing payment schedules). Good source of knowledge and advice for furnishings and fittings. Some expensive tastes...! Very nice to deal with and would reccomend without any hesitation.”
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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 City of Westminster.

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?
2,263Local Pros on Houzz Who Serve City of Westminster, Greater London
95,000+Total Number of Reviews Left by Homeowners
Are you considering a house extension? On Houzz, you can find an extensive selection of City of Westminster 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 City of Westminster 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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