Since 1980, providing architectural design services for commercial, educational, medical, municipal, preservation, and residential projects from a renovated gristmill in Ashland, New Hampshire. 


Services provided by SDA include: Architectural Modeling, Architectural Rendering, Bid/Construction Documents, Building Renovations/Retrofit, Code Analysis, Design/Build, Services, Feasibility Studies, Historic Preservation, Infrastructure Studies, Master Planning, New Building Design, Opinion of Probable Cost, Phased Building Design, Planning, Programming, Project Administration, Roofing Design, Site Design, Strategic Facilities Planning, and Sustainable Design.