Petr Hájek Architekti is an architectural practice based in Prague, established in 2009 after the split of the earlier firm HŠH architekti. Led by Petr Hájek, born in 1970, the organization operates from Grafická 20 in Prague and has developed a reputation for integrating experimental approaches and interdisciplinary inspiration into Czech architecture.
Since its founding, the studio has been responsible for several notable projects recognized both nationally and internationally. A defining example is the recent Concert Hall in Karlovy Vary, designed between 2019 and 2024 by Petr Hájek, Nikoleta Slováková, and Martin Stoss. The project, inserted into the historical Imperial Spa, features a prominent red self-supporting structure, retractable seating, and adjustable acoustic systems to suit a variety of events. It was awarded the Czech Architecture Award in 2024, chosen from more than 300 entries.
The office’s earlier works include the expansion of the DOX Centre for Contemporary Art in Prague and the Centre for Environmental Education in the Krkonoše Alps. Their activities range from cultural and educational buildings to public interventions such as the renovation of the Archdiocesan Museum in Olomouc and the transformation of a water tower in Prague’s Letná.
Petr Hájek himself is also an educator at CTU in Prague and the Academy of Fine Arts and Design in Bratislava, and received the 2018 Architect of the Year award in the Czech Republic. The studio’s output combines pragmatic responses to client needs with innovative exploration, particularly in technology and form, without resorting to architectural spectacle for its own sake.