Sebastián Irarrázaval was born in Chile in 1967.

He trained as an architect at Universidad Católica in Santiago and the Architectural Association in London. In 1993 he set up his own practice in Santiago. In 1999 he received the AOA (Architecture Offices Association) award to the most outstanding young architect and was awarded at the Architecture Biennial in Chile. He has taught design studio at Universidad Católica de Chile since 1994 and as visiting professor at the Massachusetts Institute of Technology (USA, 2007) and Università Iuav di Venezia(Italy, 2016).

His projects have been published worldwide in specialized magazines; among them Casabella, Arquitectura Viva, ARQ, and A+U. Practice work has been exhibited locally and abroad. Recent exhibitions include XV Chilean Architectural Biennial, Venice Biennale, Shenzhen and Hong Kong bi-city Biennial where he received the Public Choice Award and the Milan Triennial where he exhibited an ideal city for Africa. Irarrázaval was awarded twice at the W.A.Ve. International Workshop held at Università Iuav di Venezia (Italy, 2014-2015) and was shortlisted for the Mies Crown Hall Americas Prize (USA, 2016) and the Architecture Swiss Award (Switzerland, 2017).

Recently his project “2Y house” was chosen among the 3 best projects of the year by Archdaily. His latest project “Public Library of Constitución” has been granted Merit at the AZ Award (Canada, 2016), Honor at the Wood Design and Building Award (Cana-da, 2016) and RIBA Award for International Excellence (UK, 2017). Recently Irarrázaval has been awarded Eero Saarinen Honorary Lecturer by the Museum of Finish Architecture (Finland, 2017) and Riba International Fellowship by the Royal Institute of British Architects.