Senior Associate

Born and raised in Milan, Andrea Ermolli obtained his Masters in Architecture from the Milan Polytechnic University. He moved to Seattle in 2001 to work with Stephen and has participated in many large residential projects involving new construction as well as remodel work. In his spare time, Andrea cultivates his hobby of astrophotography.






Architectural Drafter

Peter Sweeney received his Bachelors of Science in Engineering Mechanics – Aeronautics from the University of Wisconsin.  Peter is a designer, engineer and draftsman who enjoys exploring the bridge between design and creation.  He strives to employ the latest building techniques to defy existing construction limitations and has contributed toward projects involving marine, aerospace, and industrial design.  When Peter is not pushing boundaries in the studio, he enjoys doing so in the mountains.






Assistant in Landscape Projects

Quill’s affinity for horticulture and garden design grew from a childhood spent gardening alongside her mother and exploring the woodland flora of the Cascade Mountains. Quill received her BA in Biology focused in plant sciences from the Colorado College, and her MS in Public Horticulture form the Longwood Graduate Program and the University of Delaware, where her studies focused on the preservation of historic gardens and landscapes. Most recently she planned and directed the preservation of the 130-year-old historic estate gardens at Meadowburn Farm on the border of New York and New Jersey.  In addition to her involvement at SSD, she serves as the Director of Historic Preservation at the E. B. Dunn Historic Garden Trust.




Studio Manager

A Pacific Northwest native, Michelle received her undergraduate degree in Natural Resource Management from Huxley College of the Environment at Western Washington University. She worked for over 15 years in the field of restoration ecology both in the San Francisco Bay Area and here in Western Washington.  She is currently a graduate student a Antioch University in their Couples and Family Therapy Program with special interest in emotional geography and art therapy.  Michelle is also an artist both working in ceramics and illustration, and a nature lover spending much of her time hiking and exploring the natural areas of this region.

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