skip to main content
Photos
Photos
Advice
Stories From Houzz
Houzz Discussions
Houzz Research
Sign In
Houzz Logo Print

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

Get Matched with Local Professionals
Answer a few questions and we’ll put you in touch with pros who can help.

Location (1)

Nearby Locations

Popular Locations

All Filters
City of Westminster / 25 mi
Architects & Architectural Designers
House Extensions
1 – 15 of 2,264 professionals
1234567816Next Page
2,264 Professionals

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

Spatial Affairs Bureau
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars11 May 2020
“Took 9 years to design and build my home and Peter and Spatial Affairs team have been absolutely amazing from beginning to end. Spatial Affairs Bureaus' experience, approach, attention to detail and clients needs have been exceptional. Peter is dedicated to providing the perfect home and work space!”
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!”
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”
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.”
ade architecture ltd
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars18 May 2016
“Daniel and I worked for the same client; I designed the garden on an extension and house house refurb that Daniel had designed. His work was very imaginative and he had a very different take on a typical Victorian house conversion. We had to work alongside each other during the build in order that the interior and exterior were cohesive and complemented each other. I found him to be very approachable and easy to work with. He was always flexible when necessary and would listen to other people's ideas on certain elements whilst still maintaining his design aesthetic.”
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.”
Hampstead Architects
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars20 December 2021
“HA have been a great help with our extension/ renovation and have helped guide us through planning, structure and building regs. They even put us in touch with some quality local contractors which gave us confidence going into the build stage. Working with Phil and the team has been great along with their honesty and advise it has made the project an enjoyable process. I would highly recommend HA !”
Extension Plans UK
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars21 September 2023
“Very professional service giving us everything we needed at a fraction of the cost of getting an architect.”
KMI London Ltd
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars9 October 2018
“A company with a conscience! Kal, Vladi and the team at KMI were committed to getting it right for us from the start to the end. Excellent workmanship and attention to detail and they were professional and reliable during the 6-week project. I am looking forward to calling on the team again for building and decorating works in the future.”
VC Design Architectural Services
House Extension Professionals in City of Westminster, Greater London
Average rating: 5 out of 5 stars5 August 2014
“VC Design was recommended to me and I would do the same without hesitation. We contacted Veronica about drawing up plans for our ground floor extension and although conceptually we had a clear idea of what we wanted to she was invaluable in advising us how to best use the space and our options within the parameters of planning. She also contacted previous clients and arranged for us to see the work they had done, this allowed us to see first hand some of the ideas we had discussed. Veronica submitted the planning application and we have now received our approval - a job very well done.”
1234567816Next Page
List your business here for free - Learn More
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?
2,264Local 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.

United Kingdom
Tailor my experience with cookies

Houzz uses cookies and similar technologies to personalise my experience, serve me relevant content, and improve Houzz products and services. By clicking ‘Accept’ I agree to this, as further described in the Houzz Cookie Policy. I can reject non-essential cookies by clicking ‘Manage Preferences’.