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
2026
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Colorado Business Committee for the Arts
Semple Brown Design
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CBCA 2026 Arts & Business Partnership Award
2025
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AIA Colorado
Kaylyn Kirby
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2025 Young Architect of the Year
2025
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NEWH The Hospitality Industry Network (Network Executive Women in Hospitality)
Semple Brown Design
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Top Interior Designers (TopID)
2025
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Mayor's Design Awards
Bruce Randolph Avenue Residences
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Design Award: Economic Development - Small Scale
2025
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Mayor's Design Awards
Tears-McFarlane House and Secret Garden Bar & Cafe
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Design Award: Community and Culture
2024
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ColoradoBiz
Asteria Theatre at Colorado Mesa University
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Top Project of 2024
2024
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Green Globes, Green Building Initiative
Asteria Theatre at Colorado Mesa University
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Project of the Year
2024
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Mayor's Design Awards
Concord Energy
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Design Award: Back to the Future
2024
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IIDA Rocky Mountain Chapter
Colorado Photographic Arts Center
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DEI award
2024
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Mayor's Design Awards
Prodigy Coffee Shop
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Design Award: Neighborhood Gem
2024
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IIDA Rocky Mountain Chapter
Colorado Photographic Arts Center
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Best Serve (Non-profit and community-based projects)
2023
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AIA Colorado
Concord Energy
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Honorable Mention
2023
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Capitol Hill United Negborhoods
Semple Brown Design
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Historic Preservation Award
2022
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Historic Denver
Benzina
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Remix Award
2021
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Luxe RED Award Winners
V|O Residence
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Regional Winner, Contemporary/Modern Architecture
2021
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ENR Mountain States
Denver Center for the Performing Arts Helen Bonfils Theatre Renovation
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2021 Best Projects Award. Cultural/Worship category. Merit Award
2021
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Mayor's Design Awards
Benzina
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Design Award: Neighborhood Gem
2020
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IIDA Rocky Mountain Chapter
Magnolia Hotel
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Best of the Best Award
2020
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AIA Colorado - Denver
Kent Denver Middle School
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Award of Distinction
2020
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IIDA Rocky Mountain Chapter
Magnolia Hotel
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Best Play (Hotels + Resorts)