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
2015
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Tilt-Up Concrete Association
Yates Pavilion
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Design Award
2015
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ULI
Hangar 2
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Innovation Honor Award
2015
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Mayor's Design Awards
Denver Union Station Wing Buildings
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Design Award
2015
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AIA Denver
Yates Pavilion
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Design Excellence Honor Award
2015
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Mayor's Design Awards
Colorado Ballet Armstrong Center for Dance
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Design Award
2014
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US Green Building Council
IMA Financial Group
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LEED Gold Certification
2014
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US Green Building Council
Gates Family Foundation
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LEED Gold Certification
2014
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CBCA (Colorado Business for the Arts)
Gates Family Foundation
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Workspace Award
2013
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AIA Colorado
Kent Denver School Dining Hall
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Citation Award
2013
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AIA
Semple Brown Design
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Sarah Brown, elevated to AIA Fellows (FAIA)
2012
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AIA Denver
Parker Arts, Culture, & Events Center
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Award of Citation
2012
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US Green Building Council
Anschutz Commons
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LEED Gold Certification
2012
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Canadian Copper & Brass Association
Kent Denver School Dining Hall
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North American Copper in Architecture Award
2011
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IIDA
Corner Office
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Honorable Mention
2011
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ENR Mountain States
Kent Denver School Dining Hall
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Best Green Project in Mountain States Region
2011
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AIA Denver
K & K Poolhouse
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Architects Choice Award
2011
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Brick Industry Association
Kent Denver Student Center for the Arts
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Brick in Architecture Award - Bronze Award
2011
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IIDA BEST Awards
Pura Vida Fitness Center
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Honorable Mention
2011
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US Green Building Council
Kent Denver School Dining Hall
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LEED Platinum Certification
2011
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ASLA
K & K Poolhouse
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Design Award