Principal Architect / Owner


Terence Thornhill has over twenty years of experience in the design, management and planning of architectural and interior design projects for private, corporate, and governmental clients.   Mr. Thornhill has been the principal architect for projects requiring expertise in master planning, conceptual planning, architectural design coordination, construction contract negotiation, and construction management.

Mr. Thornhill’s corporate experience includes office, retail, medical, industrial and aircraft related developments for regional and international clients.   In addition to the insight gained from involvement in residential and commercial development, Mr. Thornhill’s extensive work with developers has helped to clarify economic constraints and design opportunities critical to a successful project.   His institutional experience includes planning and design of a multitude of project types. He has dealt extensively with committees and long range planning organizations and is experienced in teaming with other architects and consultants for specialized program requirements.


University College Dublin 1982-1984

Master of Architecture*

Dublin, Ireland

University of Washington 1979-1982

Bachelor of Arts in Architecture

Seattle, WA

Central Washington University 1978- 1979

Undergraduate Studies

Ellensburg, WA


State of Washington, 1989 – Registration #5210


American Institute of Architects-Spokane Chapter
National Trust for Historic Preservation
Tri-City Area Chamber of Commerce
Construction Specifications Institute
Tri-Cities Visitor & Convention Bureau
Tri-Cities Water Follies Board of Directors
Rotary International - Columbia Center Club

Our Lady of Lourdes Hospital Century Club Founder

Knights of Columbus


Mid-Columbia Small Business Award (1999)

       Gold Award

MAME Award - Seattle Master Builders (1991)

Judges Award - The Florentine Condominiums

Seattle, WA

              *(Washington State Department of Licensing -

                 Architectural Division equivalency recognition)