Rowan read architecture at the University of Cape Town, South Africa, where he won the national award for the best architectural design thesis of the year. He settled in the UK in 1993. Past experience includes working with the Fitzroy Robinson Partnership in London, Freeland Rees Roberts Architects in Cambridge, and with Patrick Ward, as well as running his own practice. Rowan has now been working in Cambridge for the last 9 years. He has acted as project architect and lead consultant on projects up to the value of
2m. Whilst with Freeland Rees Roberts, he designed the internal public spaces, gallery and auditorium for the Magdalene College Cripps Court, and the was project architect for the new Gunn Library for Peterhouse .

Rowan has a keen interest in sustainable architecture, is a member of the Association for Environment Conscious Buildings, and has had work published in their journal, Building For a Future.

Rowan has, in the past, been a supervisor for students at the Cambridge School of Architecture. He is a governor at the Lantern Primary School in Ely, and a trustee for ADeC (Arts Development in East Cambridgeshire).