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YSA are a RIBA Chartered Practice based in London founded by Will Stevens and Sara Yabsley in 1995. Our mission is to design contemporary buildings of clarity and refinement and buildings that exceed our client’s expectations; and surprise and delight.

Our design approach focuses on materiality and the use of light, the key components to create the ‘spirit’ of a building. Our designs are sensitive to their settings and respond and relate to their surroundings, we are able to work with and in close proximity to historic buildings. Our designs are in response to, and are driven by our client’s requirements and their goals and objectives.

Much of our work is in the residential sector, for private and commercial clients, with budgets that range from £50,000 to over £1,000,000.

We engage fully with our clients making sure they are involved in the design process and understand their building as it is developed. We develop a brief to set clear goals and realistic deliverables to ensure our clients expectations are managed throughout the project.

YSA develop consultant teams appropriate for each project, demanding the very best from our co-professionals to deliver buildings that perform both at an aesthetic level and functionally and economically.

We tailor our services to suit individual clients and along with architectural services can offer an Interior Design Service including the design of bespoke furniture and fittings and lighting design.