Book a free consultation with our experienced basement designers

Fill in the form below, and one of our award-winning architects will contact you to discuss your basement design options and planning permission requirements.

How We Work

Granit is an award-winning architecture and interior design practice. We provide a bespoke design service for people who want to create a beautiful home that reflects their style and tastes.

Our clients often find basement work can be overwhelming, or they don’t know where to start.

Our team has over 30 years of experience designing beautiful homes and basements. We’ve worked on everything from terraced houses in Clapham to townhouses in Chelsea. You can see some testimonials from our many satisfied clients here.

We have a rich track record of designing homes that are perfect for our clients. By working with people, space, light and modern interior design principles, we create basements and homes our clients love. This expertise is especially important in basement conversions where there are additional complexities, such as gaining planning permission and creating light, dry and spacious accommodation.

Who you will be meeting

Our architecture team is led by Robert Wilson and James Munro, who collectively have over 50 years of architecture and basement design experience. They work closely with our interior design team, too, which enables them to look at a project from every angle.

Fill in the form below, and we’ll contact you to book an appointment at your property.

“The results of working with Granit are superb. I now have some great space for me, my friends and my family. I just need to retire to enjoy it fully!…”

Mr Hywel Jones, Clapham

“At no time do we ever walk into our extension and feel anything other than in love with what’s been created….”

Mr Beri Cheetham, Wandsworth

Our Work

Here are some examples of basements we have recently designed for clients across London. We were able to find extra space for all sorts of features, from wine stores and utility rooms to home cinemas and children’s play spaces:

Battersea Architecture Architects South West London Architects South West London Architects South West London


You can also see examples of other basements in our project portfolio here.