Our Studio Since 1989…

1117 Projects

Designs in 12 states

37 college, co-op and high school interns mentored

Yielded more than 4 million square feet of construction…and counting

Over 200 classrooms designed in the past 5 years

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Over 30 years of excellence in design…

HSA was founded in 1989 by friends and colleagues Phil Hooper and Mitch Shiles. The firm’s early success was through spearheading residential reconstruction projects in St. Croix, post Hurricane Hugo. In 2007, longtime HSA project architect Matt Heckendorn became Principal and the firm’s name subsequently changed to Heckendorn Shiles Architects. Our over thirty-year history has seen an evolution of project types, technology and sustainable initiatives while our commitment to deliver innovative and powerful designs has been constant.

Today we are a dynamic practice with diverse project types including interior, educational, therapeutic, sports facilities and ice rinks, community and municipal buildings, space and master planning, and art installation. We have received awards for our adaptive reuse, historic restoration and sustainable projects. 

To date, we have completed over 1100 design projects in 12 states.  Highlights of recent work includes the adaptive reuse of a former asbestos textile mill, renovations to Philadelphia landmarks including the Cira Centre and Wells Fargo Arena, the Philadelphia Flyers Practice Facility, and guidance on a public art structure for the Papal visit to Philadelphia in 2015. Our talented team of architects and interior designers continue to champion new project types that push our portfolio, technology, and collective imagination.

Please enjoy our 30 Year Celebration video of our award-winning projects and our firm archive photos of staff favorite memories through the years.