Jan Kasl is an architect and the President of the Czech Chamber of Architects. He is a member of several boards and committees in academic world (Czech Technical University, Academy of Performing Arts) and professional bodies (former President of EUROPAN CZ, member of Czech Architecture Foundation, Open House Prague etc.).
He is recently engaged in major transport projects of the City of Prague, involved in landscape and spatial design as well as architectural design of mainly residential development. Between 1998 and 2002, he was the Mayor of the City of Prague.