In 1995, Dominique M. Hawkins founded PDP as a small "boutique" practice specializing in planning and design services for historic sites and buildings. Since its inception, the firm has selected its projects and clients carefully and collaborated closely with the country's foremost experts in the field, providing excellence in preservation planning, design and architecture.

Ms. Hawkins is recognized nationally for her expertise in preparing design guidelines for historic districts, with a portfolio that includes some of the most significant historic cities in the country, including New Orleans, LA; Oak Park, IL; Newton, MA, and Ft. Lauderdale, FL. Her work in this area of preservation planning has been recognized as pioneering and is used as the standard by several State Historic Preservation Offices.

In June 2010, Dr. George C. Skarmeas joined the firm as Partner and Planning & Design Director. Prior to joining PDP, Dr. Skarmeas was the founding Principal and Director of the Preservation Studio at RMJM (formerly HillierARCHITECTURE) from 1996 to 2010, leading projects involving major iconic National Historic Landmarks such as the US Supreme Court, the Virginia State Capitol, and the Cincinnati Museum Center at Cincinnati Union Terminal.

The hallmarks of the firm are the direct involvement of its partners in all projects, commitment to design and preservation excellence, attention to detail, and collaboration with the country's foremost experts in specialized areas of historic preservation.

PDP continues to create sensible, sensitive and sustainable solutions with a long-term value, through the careful treatment of architectural, cultural and historic resources.

PDP is certified as a Woman-Owned / Minority Business Enterprise.