APD Preservation offers professional and technical services related to cultural resource management and compliance at the Federal, State and local levels.

Historic Resource Evaluations

Determinations of Consistency with the “Secretary’s Standards”

Cultural Resource Surveys to locate, identify and evaluate historic structures

Historic structure reports

Literature Research and Context Studies

Historic designation documentation, including NRHP and California Register evaluations and nominations; CA DPR Form 523s

Environmental Review and Documentaiton, including:

National Historic Preservation Act (NHPA) Sections 106 and 110
National Environmental Policy Act (NEPA)
California Environmental Quality Act (CEQA)



I’ve had the pleasure of working with Alice Duffee on a number of projects and in different capacities. We served together on the board of the Sonoma League for Historic Preservation, and Alice has assisted me in client matters as a consultant and potential expert witness. Her research and writing skills are outstanding, and she’s an effective presenter at public hearings. Alice is a noted and respected authority on historic designation and preservation matters and is a tremendous resource.

Michael Woods

Land Use, Permitting and Real Estate Attorney

My firm has had the benefit (and pleasure!) of working with Alice on at least 4 projects. Her credentials speak for themselves; she’s extremely knowledgeable and intuitive in helping her clients navigate the often times challenging path to discretionary approval for historic projects. In addition to her extensive research and thorough reports, she is happy to attend hearings and often times will educate the members of a jurisdictional board about the meanings and subtleties of the complex guidelines controlling historic preservation and new construction.

I could not give her a more enthusiastic referral!

Robert Baumann


Design Consultation and Determination of Effect – “Hawker Project”, 158 West Napa Street, Sonoma, CA

Historic Resource Evaluation – 316 East Napa Street, Sonoma, CA

Historic Resource Evaluation & Consistency Evaluation - Father Roberts Hall, St. Francis Solano Church, Third Street West, Sonoma, CA

Historic Resource Evaluation – First Congregational Church, Sonoma, CA

Historic Resource Evaluation and Determination of Effect – 227 East Spain Street, Sonoma, CA

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