We are residential Architects based in South West London and provide a completely bespoke service that covers all stages of the design process from concept to construction. Our award winning RIBA Chartered Practice was founded in 2015 by ARB and RIBA Chartered Architect Iacopo Sassi with the specific goal of becoming one of the leading residential architects in South West London.
Our team has a high degree of experience working mostly on high-end residential projects, including extensions and loft conversions. With over 15 years of professional experience in the field we help clients achieve their dreams; designing rational and beautiful spaces that perfectly fit their needs.
Our main goal is to deliver ambitious living spaces that are both functional and sustainable. We are passionate about design and love to work in a bespoke manner with every single client, respecting their specific priorities and goals. We are specialists in lighting design too, and we believe that a focus on bringing in optimum natural light can completely transform a home.
Our team has a high degree of experience working mostly on high-end residential projects, including extensions and loft conversions. With over 15 years of professional experience in the field we help clients achieve their dreams; designing rational and beautiful spaces that perfectly fit their needs.
Our main goal is to deliver ambitious living spaces that are both functional and sustainable. We are passionate about design and love to work in a bespoke manner with every single client, respecting their specific priorities and goals. We are specialists in lighting design too, and we believe that a focus on bringing in optimum natural light can completely transform a home.
Services
Square One Architects is an RIBA Chartered Practice based in Hampton, South West London, which specializes in bespoke residential architecture. We believe designing and building your house should be a fun and exciting experience, whilst being overlooked by qualified professionals capable of not only understanding your needs and ambitions, but proposing new and unique solutions as well.
This recently completed project located in the London Borough of Kingston Upon Thames is spread between two semi-detached Victorian properties which both sought to extend their roof spaces. The properties already benefitted from handsome elevations and styling which called for a modern addition to avoid any pastiche details which could have been harmful to the character of their original elevations.
Reviews (10)
Paul Tanto
Oct 25, 2021
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Sally Foulkes
Jul 03, 2021
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Positive: Professionalism, Quality, Responsiveness, Value
We used Square One Architects to design our single story rear extension, and found them to be very good. Iacopo was very responsive to all our emails, arranged regular updates to keep us informed, and presented us with several options, and produced high quality and clear drawings to make decisions easier.
We used Square One Architects to design our single story rear extension, and found them to be very good. Iacopo was very responsive to all our emails, arranged regular updates to keep us informed, and presented us with several options, and produced high quality and clear drawings to make decisions easier.
Kathryn Martindale
Jun 24, 2021
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I would highly recommend Square One Architects. Iacopo really helped us get the best out of our 1960's house kitchen extension. He offered practical and clever design solutions and was responsive, considerate and thoughtful. We are very happy with the space we now have and he helped us to make the right decisions to make the most of it.
Gavin McCarthy
Nov 24, 2020
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I recently engaged Square One for a conversion project in my house. I found them highly professional and reliable throughout. They showed a genuine interest and enthusiasm for our project and were extremely helpful with suggestions on how best to approach the various applications and approvals from the local council. Square One also recommended various other companies, including the builders who we ended up going with. They were all excellent and we're delighted with the end result. First class.
Angela Jopling
Oct 16, 2020
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Tom Clifton
Oct 05, 2020
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Positive: Professionalism, Quality, Responsiveness, Value
Iacopo provided excellent service and support throughout our project. We are very happy with the design and the end result is exactly what we hoped for. Iacopo’s support during the build and engagement with the builder was very helpful. We would highly recommend Square One Architects.
Iacopo provided excellent service and support throughout our project. We are very happy with the design and the end result is exactly what we hoped for. Iacopo’s support during the build and engagement with the builder was very helpful. We would highly recommend Square One Architects.
Matt Johnston
Aug 28, 2020
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Iacoppo and the team at Square One came highly recommended to us and they achieved a superb result negotiating planning and securing a loft extension ceiling height that exceeded out expectations.
They produced a creative result, sympathetic to the age and style of the property.
Our contractors appreciated the accuracy of the drawings and attention to small engineering detail. All small but important factors which reduced the need for on site decision making or changes.
Overall the project went extremely well.
Matt & Ruth, Hampton
They produced a creative result, sympathetic to the age and style of the property.
Our contractors appreciated the accuracy of the drawings and attention to small engineering detail. All small but important factors which reduced the need for on site decision making or changes.
Overall the project went extremely well.
Matt & Ruth, Hampton
Callum Rochford
Aug 15, 2020
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Toby H.
Jan 02, 2020
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David Christmas
Dec 14, 2019
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We had a loft conversion and side return designed for our mid terraced house in 2017. We got quotes from many architects and a lot would not quote due to the size of the project or didn’t show any interest in what we wanted. Then we found Square One. Iacopo was exactly what we were looking for and helped us to navigate through the planning process and helped us to deliver our dream extension. He was a perfect fit for us, very friendly and guided us each step of the way with just the right information during each of our meetings. We would highly recommend Square One and would use them again if
