About Us

Architectural Solutions

Hammer Architects has built a substantial portfolio encompassing academic, commercial and residential projects.

Much of our work focuses on designs involving renovations and additions and often requires a sensitive integration of new construction with an existing historic or architecturally significant structure. Although the style of our work may vary, our designs consistently reflect a strong respect for context. Our goal is to create well designed buildings that are appropriate to their surroundings and make a significant contribution to their environment.

The size of our firm allows us to maintain close collaborative relationships and provide substantial principal involvement in all phases of our commissions. Our technical commitment enables us to arrive at innovative solutions, in response to our clients’ budgets, schedules and program objectives, and our experience permits us to discover creative ways to fulfill our clients’ expectations.


Mark Hammer
Mark Hammer

Mark Hammer brings to the practice over forty years of experience extending across a diverse range of building types. Prior to starting Hammer Architects, he had been an Associate with Bruner/Cott and Cambridge Seven Associates and was the project architect for several award-winning projects. Among these are the 20 and 21 Custom House Street office buildings in Boston’s Financial District, the 931 Massachusetts Avenue Condominiums in Cambridge, The US Navy Submarine Museum in Groton, Connecticut and the new Alumni Center and Chandler Athletic Center at Williams College. Mark resides in Cambridge and Truro.

Don DiRocco
Don DiRocco

Prior to joining Hammer Architects in 2005, Don DiRocco worked at several architectural firms in the Boston area and on Nantucket. Don became a Principal at Hammer Architects in 2018, and is currently a member of the Faculty at the Boston Architectural College. Don resides in Boston and Provincetown.

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