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Welcome to Armstrong Simmonds Architects

Based in South West London, we are an award winning architectural practice, priding ourselves on our creativity and passion to tailor and deliver bespoke architectural solutions for our clients.

We are a RIBA Chartered Architects practice founded in 2010. Our team has a high level of experience in the residential sector, working on a wide range of projects including high-end residential, new build apartments, house design, basements, extensions & loft conversions.

From our base in Clapham we take on projects within London and have good relationships with the local councils planning departments especially in Central and South West London boroughs.

We will diligently guide you through each stage of the process from conceptual design / planning approval through to the completion of your dream project.


We will work with you to develop a concept design, sketching layout options to explore the potential of the property.

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We’ll package up your designs and act as your planning agent to get approval from your local authority.

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Before you get constructing, we’ll produce technical drawings so your home is safe and legal going forward.

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