materials conservation

Architectural Resources Group (ARG) is an award-winning, nationally recognized architectural firm founded in 1980, specializing in adaptive reuse, new construction in historically sensitive settings, historic preservation, planning, and conservation of culturally and historically significant buildings and sites. Headquartered in San Francisco with offices in Los Angeles and Portland, ARG is a 50+ person, majority woman-owned firm and a certified Women-Owned Business Enterprise in California and Oregon.

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Adaptive Reusearchitectural conservationconditions surveysconstruction administrationfacade inspectionsfeasibility analysisHABS/HAER/HALS documentationHistoric PreservationInterior Designmaster planningPlanningseismic strengtheningSustainable Design

Historic Building Architects, LLC (HBA) specializes in historic preservation architecture and materials conservation. The firm's collaborative investigative approach helps clients understand, preserve, and interpret cultural heritage. HBA is certified as a Women-Owned Business Enterprise (WBE) and Small Business Enterprise (SBE) by the State of New Jersey, has nine staff members, and is led by Principal Annabelle Radcliffe-Trenner. It operates an in-house Architectural Conservation Laboratory and strives to design 100-year repairs.

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adaptive use designbuilding investigationsconstruction administrationhistoric preservation architecturehistoric researchmaterial testing and analysisnon-destructive evaluationsUAS surveys