Donnie Garrity, LEED AP


Project Manager



Donnie joined the O’Sullivan Architects team in the fall of 2013, after working 6 years for a large Boston firm. However, this was not the first time he has been with O’Sullivan Architects as he first met the team when he shadowed David O’Sullivan as a high school student to be exposed to the architectural industry. Pursing a degree in the field, Donnie graduated from Syracuse University cum laude with a Bachelor of Architecture in May of 2007, where his studies included a semester of study abroad in Florence, Italy.

After graduation Donnie worked in other Boston area architectural firms where he gained widespread experience on a multitude of types of projects which included, commercial mixed-use, residential, community centers, adaptive rehabilitation, and housing rehabilitation and where he also earned his LEED AP credential. Donnie has worked from preliminary project conception through construction administration on the rehabilitation of over 900 residential units, the adaptive re-use including mill conversions of over 325 residential units, and the new construction of over 180 residential units. Donnie looks forward to continuing his growth as an architect, and bringing an innovative and considerate approach on all future projects.

In his off-time Donnie enjoys spending time with family and friends, which usually revolves around some sort of sporting event whether it is playing or watching.