Patrick Callahan

Landscape Designer

Patrick Callahan has more than ten years of experience providing landscape design for a variety of municipality and institutional projects as well as high-end residences. He brings a strong understanding of design detailing and construction documentation, and he is skilled at creating high-quality plans, renderings and 3D models. Since joining Halvorson Design, he has applied his expertise in detailing and the development of construction documents and renderings for Tuscan Village, a large-scale mixed-use development in Salem, New Hampshire and the Manning Community Park in East Milton Square.



Bachelor of Landscape Architecture | UMass Amherst | 2006