Semple Brown Design

At Semple Brown, we design timeless, transformative places in Colorado and beyond. Our work spans architecture, interiors, and planning across a wide range of sectors and scales. Ellie Caulkins, Larimer Square—ours are familiar places, designed to stay the same as you change and, in turn, change you the longer you stay.

Project Types

Commercial 20%
Residential 20%
Educational 20%
Multi-Family 10%
Retail 10%
Interior Design 20%

Specific Designations

  • 2030 Commitment Signatory Firm

Firm Size

10-49 employees

© AIA Colorado 2026
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