Making the best use of his knowledge of building systems and processes, including a background in structural engineering, he designs from the inside out. Each project is created with its foundation and framework simultaneously integrated with the aesthetic considerations of floor plan and traffic flow. Every joist, post, and beam is already sized and located, every shear panel accounted for, the needs of the plumber and HVAC contractor already considered. By making the best use of your site’s sunlight potential, passive solar features can reduce you heating bill. As a Certified Green Designer, David Hirzel can help minimize your project's environmental impact.