Aspen’s historic homes need a certified builder.
Seamline Pacific Builders is licensed in the City of Aspen and Pitkin County, with the historic specialty certification Aspen requires for its landmark and historic properties.
- City of Aspen / Pitkin County
- Unlimited License #UC-000382, valid through 04/2028. Authorized for projects of any size and type in the City of Aspen and Pitkin County; issued by both Chief Building Officials.
- Aspen HPC
- Historic Specialty Certified, B.E.S.T. card 2608-0502, certified through 08/2029. The Board of Examiners for Standardized Testing certification Aspen requires to work on designated historic and landmark structures.
Why the pairing matters
Aspen protects its history harder than almost anywhere in the country. Work on a designated historic property runs through the Historic Preservation Commission, and the City limits who is qualified to perform it.
Holding an unlimited license and the historic specialty certification together means one firm can carry a project from a full-scale build to a delicate landmark restoration without handing off the parts that matter most.
What we take on in Aspen
Historic and landmark restoration
Sensitive work on designated properties, executed to HPC standards and the City’s review process.
Luxury residential
High-finish custom homes and major renovations where precision, discretion and schedule certainty are non-negotiable.
Additions and adaptive reuse
Bringing historic structures forward: additions and modernization that respect the original and satisfy review.
Owner’s representation
A builder’s read on your project before and during construction: cost-certain planning and disciplined delivery.
A track record behind the credential
Seamline is new to Aspen; its leadership is not new to demanding, high-stakes construction. Ryan Dumoulin led senior roles at prior firms on complex, code-intensive work: high-rise, healthcare, institutional and large-scale residential.
Planning a project in Aspen?
Historic restoration, a luxury build, or an owner’s-rep engagement: talk to us before the drawings are final.