HDR acquires Calthorpe Associates
The company is internationally recognized for innovative leadership in regional planning, urban design, and TOD.


HDR is expanding its multidisciplinary team of urban and regional planners by acquiring Calthorpe Associates, based in Berkeley, California. Going forward, the firm will do business as HDR|Calthorpe.
Calthorpe Associates is internationally recognized for innovative leadership in regional planning, urban design, and transit-oriented development. Since 1983, the company has assisted public and private-sector clients in shaping livable communities. The firm is an international leader in smart growth and a founding partner in the Congress for the New Urbanism.
The combined relationship with HDR will benefit communities with groundbreaking urban growth in livable, sustainable, and low-carbon solutions.
Peter Calthorpe will join HDR as a sr. VP. He is a renowned pioneer of innovative approaches to urban revitalization, community planning, and regional design. He was awarded the Urban Land Institute’s prestigious J.C. Nichols Prize for Visionaries in Urban Development and is one of the founders and first board president of the Congress for the New Urbanism.
Joseph (Joey) Scanga will join HDR as a VP. He has two decades of diverse experience at Calthorpe Associates and has managed projects in countries worldwide.
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