At CTA Historic Preservation Services, we strive to facilitate a healthy synergistic preservation process aimed at meeting our client's goals. The field of historic preservation encompasses a wide spectrum of possibilities for the many historic resources our western region is proud to maintain. Our approach begins with a strong working knowledge of The Secretary of the Interior's Guidelines for the Treatment of Historic Properties, supplemented with our expertise of building materials and systems, construction techniques, and the unobtrusive incorporation of modern improvements. We believe it is critical to respect the built evidence of our history and to enable it to endure for the benefit of future generations.

By working closely with our specialized engineers, we are able to improve the comfort and functioning of historic properties without damaging the historic fabric. Our Historic Preservation services are frequently integrated with CTA's other professional services, as older buildings are being renovated for new uses.

Services provided:

- Building Assessments
- National Register Eligibility Assessments
- National Register Nominations
- HABS/HAER Documentations
- Historic Structure Reports
- Maintenance Plans
- Design for Rehabilitations, Adaptive Reuse, & Restorations