HDA is a young firm created in 2004 by Mark G Harold. With over 30 years of architectural experience in design, construction documentation, construction administration and associated responsibilities in many varied project types. Design philosophy is simple, form follows function, aesthetics also follow function and owners' desires, keep the client happy throughout the whole design process, and keep the project under budget.

• See also:
• Masterformat 1995
• Specifiers
• California
• United States