Historic Structure Reports

ARG’s Planning and History Group has completed numerous Historic Structure Reports (HSRs), which are the primary reports that document the history, significance, and recommended treatment of historic buildings. An effective part of preservation planning, HSRs address goals for the use or reuse of historic properties. Although specific contents are tailored to meet client goals, HSRs typically include a historic context statement; a chronology of development and use; an evaluation of integrity, significance, and period of significance; a list of character-defining features; a conditions assessment; and repair or treatment recommendations.

The Ahwahnee, Yosemite National Park, CA 
ARG prepared The Ahwahnee Historic Structures Report to foster the unique building’s rehabilitation. The HSR conveys information about the extraordinary qualities of The Ahwahnee’s design and construction through historical information, fine-grain existing conditions data, and forward-looking treatment recommendations.


Angel Island Immigration Station, San Francisco Bay, CA
ARG produced Historic Structure Reports and Reuse Guidelines for the three principal, existing structures at the Angel Island Immigration Station. ARG was subsequently selected to lead the planning effort to restore and interpret the Station. The project included the barracks, hospital, powerhouse, as well as the former administrative building’s location.


Governor’s Mansion/Temple of Justice, Washington State Capitol Campus, Olympia, WA
As part of its role as Campus Conservator, ARG has completed HSRs for multiple buildings at the Washington State Capitol Campus, including the 1908 Governor’s Mansion and the 1913 Temple of Justice.


Los Angeles Union Station, Los Angeles, CA
Opened in 1939, Los Angeles Union Station is widely considered to be the last of the great American rail terminals. Designed by some of the most notable architects and designers of the era, the station remains an iconic landmark in Los Angeles and a tribute to the prosperity and optimism of the growing city. Union Station’s owner, Metro, engaged ARG to produce a historic structures report which will guide space-by-space treatment of the historic station in the face of growth and changing trends in rail travel.


McConaghy Estate, Hayward, CA
The Hayward Area Historical Society (HAHS) engaged ARG to prepare an HSR for the McConaghy Estate in unincorporated Alameda County. The HSR summarized the historic significance of the property, assessed building conditions, and made recommendations regarding the treatment, rehabilitation, and long-term stewardship of the property, contributing to the creation of a future Master Plan for the site.


Reno Depot, Reno, NV
Historically linked to the construction of the transcontinental railroad, Reno’s 1926 Depot building was the subject of an HSR conducted by ARG that included historical research, an existing conditions survey, building code research and analysis, and treatment recommendations. The report served as a comprehensive planning document to be used by the City of Reno to guide the preservation of the structure as it is readied for rehabilitation and possible new use.


State Forester’s Office Building, Historic Preservation Plan, Salem, OR
ARG led a diverse team of specialized subconsultants to complete a Historic Preservation Plan (HPP) for the State Forester’s Office Building in Salem, which lays the groundwork for the building’s rehabilitation. In completing the HPP, ARG: documented the history of the building; identified current physical conditions; identified future program needs; developed prioritized treatment recommendations; provided a preliminary cost estimate; and provided project implementation planning services.


The Village Green, Baldwin Hills, CA
ARG completed an HSR for the Village Green in Baldwin Hills. This HSR was the recipient of a 2012 Los Angeles Conservancy Preservation Award and a 2012 California Preservation Foundation Preservation Design Award. The Village Green, formerly known as Baldwin Hills Village, was built in 1941-42 and is considered the best and most fully-developed example of Clarence Stein’s “Radburn Plan” of community planning characterized by a complete separation of automobile and pedestrian traffic. Village Green is a Los Angeles Historic Cultural Monument and a National Historic Landmark.


Wayfarers Chapel, Rancho Palo Verdes, CA 

Designed by noted architect Frank Lloyd Wright, Jr., Wayfarers Chapel continues to be owned and occupied by the Swedenborgian Church for the purposes of serving wayfarers from across the world who come to reflect, meditate, and pray amongst the natural beauty of the sanctuary. The HSR included an analysis of the  Chapel, Bell Tower and Office Wing, Colonnade, and Office Annex and provided treatment recommendations to ensure that this special property remains an architectural gem for future generations to enjoy.

All photography except for Angel Island by Architectural Resources Group