PWP Landscape Architecture was founded in 1984 by Peter Walker. After completing a degree in landscape architecture at the University of California, Berkeley in 1955 and studying at the University of Illinois, Walker also attended the Harvard University Graduate School of Design. He received an MA in Landscape Architecture from Harvard in 1957, and won the Wiedenman Prize in the same year. At Harvard, Walker was strongly influenced by his professor, Hideo Sasaki, with whom he founded Sasaki Walker Associates in 1972. The two worked together until 1983, and the next year Walker opened his own practice, which over the years became a benchmark for the practice of design and landscape architecture.

The PWP Landscape Architecture design process combines history and tradition with innovation and technology. Since its inception, the practice has been dedicated to finding solutions for resource management and habitat preservation, collaborating with ecologists, civil engineers, horticulturists and experts in many other fields. Over the years, PWP Landscape Architects has realised numerous projects worldwide, including the South Coast Plaza Town Center in Costa Mesa, CA, 1991, the University of California Library Walk, 1995, the principle outdoor spaces surrounding the Novartis Headquarters in Basel, 1999, Sony Center plaza in Berlin, 2000, the landscape for the USB Tower/One North Wacker Drive, 2002, the Nasher Sculpture Center, 2003, the United States Federal Courthouse, 2004, the American Embassy Beijing, 2008 and Barangaroo, 2014.

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