[Who We Are]

86 Years of Experience.
One Focused Team.

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Meet The Team
[our purpose]
86 Years of Experience. One Focused Team.
Witha steadfast commitment to excellence, integrity, and customer satisfaction, CHCis the ideal partner for any tenant improvement project. From concept tocompletion, we are dedicated to delivering superior results that exceed expectations and create a positive, collaborative construction experience.
Commercial building interior construction documentation photo.
Founder & CEO
Chris Holbrook
Chris started in major ground-up projects, which allowed him to see all facets of construction. He moved into tenant improvement in 2009 and has since specialized in the construction of tenant improvements in Class A occupied buildings in the greater downtown Portland area.
Team member two professional headshot.
director
Dianne Walsh
Dianne specializes in emissions modeling and ESG alignment, helping clients embed measurable sustainability across logistics, agriculture, and industrial networks.
Team member one professional headshot.
chief of operations
Luca Morrison
Luca designs data ecosystems that unify supply chain insight, real-time reporting, and predictive analytics—turning messy systems into actionable intelligence.
Team member five professional headshot.
sales director
Sienna Rae
Sienna guides clients from discovery through delivery, translating technical strategy into clear action across cross-functional teams and fast-moving operational environments.
[our Story]
How We Got Here.
Established in December 2019, Chris Holbrook Construction is the result of decades spent mastering the intricacies of building in Portland. Chris transitioned from major ground-up projects to specialized tenant improvements in 2009, identifying a critical need for expertise in Class A occupied environments.

CHC was built entirely on reputation. Our first project came from a client who already knew what Chris could deliver. Every project since has come the same way: referrals from people who've seen the work firsthand. 278 successful projects and counting, it's still the only way we've ever operated.
[Our Values]
What We Stand For.
Every decision we make comes back to these principles:
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See the proof
Presence. Every person on our team is on site every day, working alongside trusted union craftspeople.
Relationships. We're only as good as the partners we keep. Clients, subs, and teammates working toward a collective win.
Schedule. Your deadline is our deadline. We've never missed one.
Safety. Zero injuries across every project. No exceptions.
Respect. We specialize in occupied buildings. Your tenants won't know we're there until the space is done.
Worker installing metal duct in commercial building HVAC system.
JLL Portland commercial office interior.
Great Results
Built by
Chris Holbrook Construction company celebration event.
Great People
“We came to them with a complex logistics challenge. Not only did they understand it faster than anyone else, they built a solution that’s saving us time, money, and emissions—every single day.”
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lara rowland
director of communications
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Trusted by the Best
[Build with CHC]
Let’s Get to Work
We didn't build this company just to win bids; we built it to help you win. Whether you are ready to break ground or just starting to plan, we are ready to help you navigate the process. If you want a partner who values your time, respects your budget, and is committed to Portland’s future, let’s talk.
 Start your project
 Start your project
Commercial building interior construction documentation photo.Commercial building interior construction documentation photo.
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