CASA Architecture + Design is a RIBA Chartered based in London and St Albans founded by Irene Casajuana in 2020, following over 20 years of extensive experience in award winning practices in Barcelona and London.

We are a passionate and creative architectural firm specializing in high-end residential projects, committed to delivering a personalised and cost-effective service with emphasis on crafting unique spaces tailored to each project needs.

Our portfolio includes projects of various scales, ranging from the renewal and extension of existing properties to the creation of new homes, workplaces and public spaces. 

As well as full architectural services, we provide bespoke interior and furniture design, and advice and consultancy on design, planning and sustainability issues.