Sustainably preserving our historic resources
Historic Preservation
Hennebery Eddy specializes in crafting timeless projects that integrate historic architecture with modern elements to extend their lives and enhance their stories. Our in-house historic services are integral to and reflective of the firm’s mission to inspire, embrace, and renew. Through the lens of sustainable preservation, we craft future-focused restoration and maintenance solutions that promote long-term stewardship while addressing our climate crisis.
OSU Strand Agriculture Hall
We helped Oregon State University transform this 100-year-old classroom building into a modern, accessible, and efficient learning environment while restoring its historic character-defining features.
Historic Resources Group
Our Historic Resources Group comprises a dozen in-house experts who provide the full spectrum of historic services while advancing industry best practices. They are LEED-accredited historical architects, historians, and preservation specialists, cross-trained in assessment, design, materials conservation, and architectural history — all meeting or exceeding the Secretary of Interior’s Standards for Qualifications for Historic Preservation Professionals. Passionate about preservation, they work as integrated design team members to develop innovative yet appropriate solutions.
Sustainable Preservation
Our approach is to maximize sustainable measures while maintaining historic integrity. Building on our expertise in historic materials and assemblies, we tailor designs to take advantage of a structure’s inherently sustainable features in tandem with selective replacements. Solutions focus on resiliency, energy need reduction and efficiency, and life-cycle costs, coupled with guidance from established preservation standards and best practices.
Conservation Lab
We employ industry-leading tools and technology to investigate and evaluate. Our conservation lab offers sampling, microscopy, and color matching of historic painted finishes; identification of metal and wood finishes; and identification of wood species. In the field, teams use borescope, ground-penetrating radar, resistance drill, moisture meter, infrared thermography, 360-degree cameras, GIS mapping, molding profiles, and a variety of hand tools.
Leadership
We are a leader in advancing the sustainable preservation field, helping our clients, colleagues, and communities manage their resources. Our staff are involved with the Association for Preservation Technology and Pacific Northwest Preservation Field School, volunteer with local historical societies, serve on the Portland and Bozeman historic landmarks commissions, and teach workshops through groups like the NPS Historic Preservation Training Center.
“I commend you for considering sustainable preservation practices and the ways in which they can be incorporated into the Painted Desert Community Complex, including the restoration of Richard Neutra and Robert Alexander’s many original design features that are inherently sustainable.”
– Chris Morris, Senior Director of Preservation Programs, National Trust for Historic Preservation
Expertise
By the Numbers
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12+ qualified historic professionals
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10 National Historic Landmarks
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10 State Historic Preservation Offices
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30 historic preservation awards
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100+ condition assessments
Stewardship Documents
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Determinations of Eligibility
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National Register Nominations
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Condition Assessments
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Historic Structure Reports
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Preservation & Maintenance Plans
In-House Resources
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Modeling: energy, daylight, carbon
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Preservation training workshops
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Workflow: “Pathways for Existing Buildings”
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“Conversation Guide: Diversity, Equity, and Inclusion in Design”
News and Insights from Our Historic Resources Group
Research, awards, and behind-the-scenes looks at our projects.
Preserving and Protecting Our State and National Parks
Hennebery Eddy helps parks with stewardship of historic resources.
Preservation is Inherently Sustainable
Learn more about our approach to designing for a regenerative future.
View Portfolio
We work around the country — from backcountry Alaska to the Petrified Forest in Arizona — on rustic vernacular structures, modern-era high-rises, and National Historic Landmarks.
See Historic Projects
If you aspire to reduce risk and improve the long-term viability of your historic or cultural resource, we can help. Let’s talk about what’s possible.
