Philip Thalis is a founding principal of Hill Thalis Architecture and Urban Projects. The practice is recognised for its independent standpoint, winning more than 100 professional awards, commendations and competitions for architectural, urban, public space and heritage projects.
Philip actively promotes the culture of architecture and city making beyond the profession, combining practice with public lectures, teaching, research, and architectural criticism. His book Public Sydney; Drawing the City (co-authored with Peter John Cantrill) examined successive transformation of the city's public places and major public buildings. He is currently professor of practice in architecture at the University of New South Wales.
From 2016 to 2021, Philip was an elected councillor of the City of Sydney, where he was able to advocate strongly for design quality and housing affordability, and for improved public transport, cycling and pedestrian amenity in the city. He was awarded the Australian Institute of Architects Gold Medal in 2024.