Black Dog Architects Co. 1805 Brook Rd, Abington, PA19001 Black Dog Architects provides design services for residential renovations, additions and new homes, as well as…More small-to-medium commercial and institutional projects, including the adaptive reuse of older (historic) homes and buildings. We work on projects as small as new dormers for an attic renovation to full house-sized additions, business renovations and new homes. Don Marquardt, a long-time resident of Abington, owns Black Dog Architects and can work with you to brain-storm a project, full design and construction/permit documents. We design in 3-D from the start to help you clearly understand how your plans will work and look prior to construction. He is sensitive to environmental concerns and considers common sense to be critical for a successful project. Visit our website for more information.