Armstrong Simmonds Architects | home
Practicing at the confluence of art, architecture, and building technology, we collaborate with clients to create buildings and environments in dialogue with culture and place.
Side & Rear Extension – Twickenham

The clients for this modern rear and side extension were looking to expand their three-bed house, creating a large open plan kitchen and living space while updating the facade of the existing house.


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.

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

Side Infill Extension – Clapham

This side infill extension creates a spacious open plan kitchen, living and dining room. Floor to ceiling Crittal doors and a large rooflight spanning the length of the kitchen bring natural light deep into the plan.

Loft Conversion – Clapham

This loft conversion adds a new master bedroom to a three-bedroom terraced house, using bespoke carpentry to make efficient use of the space available.

Side and Rear Extension – Wandsworth

This large side and rear extension features a full width glass box to the rear of the property, affording the new open planning living space unobstructed views out to the garden.