A full-service architecture firm creating enduring and evolving places in Colorado and beyond

Semple Brown was founded in 1982 by Sarah Semple Brown and Rusty Brown. For four decades, our firm has been distinguished by a deep level of respect and care for our clients. For us, it’s the people who make these places so meaningful.
From the projects we take on to the future of our firm, we do it all together.

Semple Brown is employee owned, which means that every team member, from our principals to our associates, feels a true sense of ownership over our work.

Meet the people behind our favorite places






























































Flexible and responsive, we design our process to the project, never the other way around
Awards & recognition
2006
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Western Home Awards
Jim Theye & Dee Chirafisi Remodel
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Award of Merit
2006
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Mayor's Design Awards
Steuben's Restaurant
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Design Award
2006
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AIA Colorado
Stapleton Pool House #2
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Award of Citation
2006
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AIA - Sunset Magazine Awards
100 Dexter
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Award of Merit
2006
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AIA Denver
100 Dexter
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Architects Choice Award
2006
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IES/IIDA
Ellie Caulkins Opera House in the Quigg Auditorium
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Lighting Merit Award
2006
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AIA Denver
Arnold Loft
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Architects Choice Award
2006
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ASID Colorado
McStain Neighborhoods
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1st Place Corporate
2006
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AIA Denver
Cataract Ranch
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Architects Choice - Superior Residential Design
2005
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Colorado Contruction
Ellie Caulkins Opera House in the Quigg Auditorium
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Gold Hard Hat Award
2005
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AIA Colorado
Semple Brown Design
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Firm of the Year
2005
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AIA Colorado
DesignScapes
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Award of Merit - Built Architecture
2005
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Builder Magazine
100 Dexter
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Builder's Choice Design & Planning Award
2005
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AIA Denver
Cataract Ranch
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Award of Merit - Built Architecture
2004
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AIA Colorado
100 Dexter
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Award of Honor - Built Architecture
2004
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CEPI (Council of Educational Planners International)
Denver School of the Arts
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Lighthouse Award
2004
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AIA Pennsylvania
Stapleton Neighborhood Park - Pool House
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Award of Honor
2004
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AIA Denver
Arnold Loft
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Award of Merit - Built Interiors
2004
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AIA Denver
100 Dexter
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Award of Honor - Built Architecture
2004
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ACE Award Winner
Denver School of the Arts
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Project of the Year