Seán and Stephen is an architecture practice based in East London. 

We work on a wide range of projects, from domestic extensions and residential developments through to affordable co-working spaces, permanent public artworks, temporary museum installations, and high street regeneration projects. 

We have a proven track record of helping our clients achieve their goals. We are driven by finding solutions for both design and management challenges in projects: small sites, tight budgets and timelines, planning policy context and statutory consents.

The Current Team : Stephen Mackie, Seán McAlister, Toby O'Connor

Past Members : Maija Viksne, Gary Nash, Lotta Paulus

Directors Stephen Mackie and Seán McAlister studied together in Dundee. They gained varied experience at different companies in London before establishing the practice together in 2013. They are both ARB registered architects and Seán & Stephen Ltd. is an RIBA Chartered Practice