3h is a group of architects working in Budapest, Hungary. The firm’s activities include the design of office, residential, public and ecclesiastical buildings and the restoration of historic buildings. Numerous Hungarian and international prizes, invitations to tenders, publications and exhibitions testify to the quality of its output. The firm, which currently employs 15 people, was set up in 1994 by Katalin Csillag and Zsolt Gunther. The office takes pride in both its flair for imaginative concepts and its skill in finding cutting-edge technical solutions. 3h refers to the hardness of a pencil: just as the hard 3h pencil leaves an indelible mark, so the 3h group of architects strives to leave its mark on the world with its designs and buildings.