Boris Koružnjak, Dipl.Eng.Arch. was born in 1955 in Zagreb. He graduated at the Faculty of Architecture, University of Zagreb in 1979 in the class of Prof Rašice and received his Master’s Degree in 2000 upon completing post-graduate studies in ‘Spatial Planning, Urban Development and Park Architecture’ at the Faculty of Architecture, University of Zagreb with a paper entitled ‘Housing for senior citizens on the example of an analysis of homes for old-age pensioners in Zagreb’.
As of 1979 he is employed by the Faculty of Architecture at the Institute of Architecture under Prof Kincl, and as of 1982 he is a honorary assistant at the Department of Architectural Design.
In 1989 he became a scientific researcher and research associate at the Faculty of Architecture, University of Zagreb.
He continued his expert training during 1989, 1992 and 1993 in Vienna (ILBAU–G.m.b.H.) and in Stuttgart (Biro Laage & Partner, Biro Behnisch & Partner).
In 1993 he founded the architect studio ARK with Gordana Domić.
As of 1999 he is an accredited architect and member of HKAIG (and of HKA as of 2008).
In the period 1995–2004 he was an assistant for Architectural Planning 1–5. Since 2003 he has been working at Architectural and Urban Workshops when he became assistant professor. In 2003/04 he taught Housing Estates. In 2007 he became associate professor running a course on Sports Facilities at the Faculty of Architecture, University of Zagreb.
He was associate dean for business – 2003–2007 and Head of the Department of Architecture – 2007–2011 at the Faculty of Architecture in Zagreb.
From 2007 to 2008 he was a member of the Board for enrolment into HKAIG.
He has been the dean of the Faculty of Architecture, University of Zagreb since 2011.
He has presented his work on a number of occasions at solo and group exhibitions, as well as reading papers at professional and scientific conferences. Aside from working as lecturer and professor and on scientific research, he is also researching viable models for the housing of senior citizens and models for sports facilities, as well as being the author and co-author of a number of awarded architectural projects and completed housing, business and sports architecture and school buildings and interiors.