HPA is a multi-disciplined design corporation that offers services in both architecture and planning to institutions, corporations, and developers throughout the Western United States.

Partners Yong Nam, Bob Jacob, and Susan Littlefield have diverse backgrounds and expertise. Working together at HPA for sixteen years, they are the new generation of leadership that continues to enhance HPA’s reputation for creating value for it’s clients. The philosophy at HPA is that service is a keystone of working as an architect. We are committed to our client’s objectives and strive to provide services that save them time, save them money, provide them flexibility, functionality and provide them with facilities that are a valuable asset.

Since the beginning of the new millennium in 2000, HPA has:

• Mastered planned over 100,000 acres for business and industrial parks for developers and government agencies
• Designed and assisted on construction for over 80,000,000 sf of industrial facilities for developers and corporations
• Designed and assisted on construction on over 2,000,000 sf of FDA validated biotech facilities for corporations
• Designed and assisted on construction of the largest single industrial facility in the Inland Empire, the 2,400,000 sf State Bros. Headquarters in San Bernardino, CA.
• Created value for our clients by assisting in constructing facilities valued at over $ 2,000,000,000
• After 30 years in operation, HPA continues to provide the best architectural services available for commercial, office and industrial facilities throughout the country.