The building was one of 34 projects across the county to be shortlisted and the winners were announced at an awards ceremony at County Hall, Maidstone on 8 November.
Congratulating all the finalists, Paul Carter, Leader of Kent County Council, said: ‘The design and construction of these buildings featured at the Kent Design & Development Awards are truly stunning and it shows how far we’ve come in design and build in the last 20 years.
‘Quality makes a difference to where we live and work and these buildings and structures show to the world that Kent is the place to be.’
The Sibson Building at the University’s Canterbury campus was officially opened in May 2017 and houses two of its academic schools.
Designed by architects Penoyre and Prasad, the Sibson Building is home to Kent Business School and the School of Mathematics, Statistics and Actuarial Science. It is named after the late Professor Robin Sibson, a former Vice-Chancellor of the University.
The building has already been named South East Building of the Year by the Royal Institute of British Architects (RIBA). RIBA described it as ‘a very thoughtful building, with a clear architectural concept which has been rigorous enough to withstand the project development and budgetary constraints’.