Roy Harper AIA & Associates, Inc. (RHA) is a full-service architectural design / planning team based in Houston, Texas. This professional association has been responsible for a wide variety of successful project completions in the past 51 years, to include the following types of commissions: Churches, Residential, Historical Restoration, Waterproofing / Roofing / Forensic Building Inspection, Retirement Centers, Recreational, Master Planning / Site Development, Industrial / Warehousing, Banks, Office Buildings, Retail / Food Services, Hospitals / Medical Clinics, Tenant Improvement Renovations and Additions