About us

Anthony Thomas Architects – RIBA chartered South West London architects


Award-winning residential & commercial London architects specialising in exceptional living space

Anthony Thomas Architects are an award-winning London architect practice based in Clapham, South West London (SW4). We specialise in small to large-scale projects and consultancy work across London, seamlessly integrating architecture with building management, interior design and garden design.

What we do

Creating beautiful, practical spaces which enhance quality of living and returns on investment. You may be a growing family needing extra space or have a unique vision for your London property – with over 25 years in the business and over 300 projects under our belt, we know how to transform a seemingly ordinary space in something quite remarkable. We take the time to get to know our clients, taking into account their current and anticipated lifestyle needs, financial objectives and creative vision, and translate these into workable solutions.

The results speak for themselves. Using trusted contractors and applying the highest standards of architectural innovation, quality and integrity, we create beautiful, practical spaces which transform living spaces, bring families together and add value to your property.
Our work has been featured in leading architectural, building and design publications and television programmes including, ‘Homes and Property’ and ‘The Sunday Times Home’ section. The RIBA selected our projects to feature in the coveted ‘Open House London’ initiative, two years running.

Where we work

Although we predominantly work on projects in and around South and South West London including:

We also offer bespoke building consultancy services and architect project work across London and the surrounding areas. We also undertake work in London conservation areas and on Listed Buildings.

Our work

Of course, we can design you a new London home from scratch, but we also relish the opportunity to create functional London loft conversions, extensions, basement extensions, conservatories and redesign living spaces. We ensure that our work meets clients’ financial and lifestyle objectives and complies with building and local planning authorities as well as regulatory bodies. We do our very best to adhere to strict budgets and are always open and honest about estimated costs.

Contact Anthony Thomas Architects 020 8675 6056, request a site visit, speak to us for general advice or view our Frequently Asked Questions section.