Exact federal listing answer
Is Contra Costa County Hall of Records (Additional Documentation) on the National Register?
Yes · NPS status: Listed
Yes. Reference 91001385 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies Contra Costa County Hall of Records (Additional Documentation) as Listed in the National Register of Historic Places under reference 91001385.
Federal statusListed
National Register reference91001385
Listed dateSeptember 13, 1991
Property categoryBuilding
Published address725 Court St.
LocalityMartinez, Contra Costa County, California
Significance levelLocal
Published acreage0.9
Exact answer boundaryThis confirms the named federal record only.
It does not prove that another address lies inside this property or district, establish local landmark status, decide preservation review, define a legal boundary, or describe ownership or current condition.
Why the wording is date-boundedThe answer reflects the NPS dataset published through May 22, 2026 and a live NPS GIS Listed-status cross-check made September 20, 2026. NPS notes that spatial points and polygons may need correction and are not legal documents.
Additional published fields
Areas of significance: POLITICS/GOVERNMENT, ARCHITECTURE.
Other published names: Contra Costa County Court House.
Same locality
Other released Martinez records.
Each linked page answers a separate named federal record.