Historic Preservation

We believe preservation architecture is more than just restoring a historic building. It’s about creating a place that celebrates the past while remaining relevant well into the future.

Treanor Specialty Historic Preservation

Unlock the power of historic buildings

Our historic preservation architects, architectural historians, and conservators see the unique value of historically significant buildings and view each through the eyes of a detective, learning every nuance of your building. We understand the methods and materials used to construct historic buildings, identifying opportunities for modernization while maintaining character-defining features. Applying this understanding, we partner with building owners to help them preserve, reuse, or expand their historic buildings. Our historic architects go beyond simply navigating historic standards, combining the technical precision that old buildings demand with creative design solutions that build from, restore, and improve what is there.

From studies to full architectural services, we work on a variety of building types, preserving the sense of place and culture that makes each community unique.

Historic preservation services

Picture of historic historic features including a copper column and decorative plaster.

Historic preservation architecture services

  • Preservation
  • Restoration
  • Rehabilitation
  • Adaptive reuse
  • Additions/new construction in historic setting
  • Compliance reviews
  • Condition assessments
  • Forensic investigations
  • Materials conservation
  • Seismic upgrades
  • Sustainable design

Historic preservation planning and research services

  • Architectural history research
  • Environmental compliance documentation
  • HABS/HAER documentation
  • Historic preservation plans
  • Historic resource evaluations
  • Historic structure reports
  • Historic tax credit assistance
  • Interpretive signage and exhibits
  • Master planning
  • National register nominations

Building types

  • Academic buildings
  • Capitols
  • Churches
  • City halls
  • Civic facilities
  • Community centers
  • Courthouses
  • Historic parks
  • Historic sites
  • Hotels
  • Libraries
  • Military facilities
  • Multifamily residential
  • Museums
  • Office buildings
  • Park facilities
  • Post offices
  • Theaters

Creative solutions from a proven process

Using a process built upon respect for the past and an understanding of modern needs, we take a systematic approach to historic preservation that has produced results for our clients, no matter the size or complexity of the project.

Whether you need a study, condition assessment, or architectural design, we tailor our process—understand, investigate, develop, refine, and finalize—for your project. We document your needs and wants and identify the facts to establish your project goals and priorities. Understanding what your building started as, what it grew into over the years, and what you want it to be is the key to a successful historic renovation.

Graphic showing Treanor's design process.

Featured projects

Kansas Statehouse after historic preservation was complete.

Kansas Statehouse Preservation & Restoration

Topeka, KS

Jesse Unruh Building Treanor Justice design studio

Jesse Unruh Building Rehabilitation

Sacramento, CA

Meet our people

Joy Coleman

Principal, Specialty Leader

James Bibens

Architectural Designer

Justin Curtsinger

Architect, Senior Associate

Kara Grant

Interior Designer

Elizabeth Graux

Associate Principal

Andreea Hamilton

Architect, Senior Associate

Bethany Henry

Architectural Designer

Zac Kornis


Todd Renyer

Associate Principal

Cecilia Simbana

Architectural Designer

Sam Villasenor

Architectural Designer

Austin Villejo

Architectural Designer

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