We are award winning architects in Islington and have been specialising in high end design led residential work for over ten years. Between us we have nearly five decades of experience of designing and leading residential projects. We have had over a dozen publications in national and international design magazines including Grand Designs and Wallpaper*. London Open House have invited us to open one of our projects to the public on Open House weekend and we were selected for New London Architecture’s Don’t Move Improve exhibition and publication.  

We lead extension, renovation and new build house projects from first ideas to construction completion, with teams of trusted consultants and builders.  Most of our projects have budgets of between £300,000 to £800,000, but size is less important than the potential to make something beautiful.  

We are a small practice by choice and all our projects get our full attention. We are very happy for you to speak to our clients and see our work. We think all our clients would say we are friendly and approachable and look after them well.  

Ms H, client of Islington House – Cerulean: “We particularly appreciated that ERA were always willing to see it as a collaboration, taking on board our needs and design choices, without trying to push us in one direction, while also providing honest feedback.” 

Mr D, client of Canonbury House – Thor: “Of the three major works we’ve done to our house, this was the best designed, managed & built” 

Adrie Rensen


Adrie is a Dutch architect working in Britain since the 1990s, designing and leading residential projects on every scale.  Before joining Jo, Adrie was Associate Director and Head of Technical Design at award-winning residential specialists PTE architects. Adrie is an accredited ISO auditor for quality control in design and construction.

Beyond work – Adrie enjoys kung-fu, chess, guitar and playing football several times a week.

Jo Edwards

B.Arch (1st), dip.Arch, ARB, RIBA III.

Jo has over 24 years’ experience of leading complex projects from inception to completion. Jo got a first-class degree at the Mackintosh School of Architecture in Glasgow & won several prizes. She has lead residential, leisure & conservation projects. She set up Jo Edwards Architects in 2010 and was joined by her husband, Adrie Rensen to create Edwards Rensen Architects (ERA) in 2012.

Beyond work – Jo enjoys Parkrun, being lead alto at local community choir Finsbury Park Singers and learning Italian.