Contra Costa County Courthouse Block
Also known as Finance Building
Many listed buildings are private homes. Please enjoy them from the street.
About the district
Contra Costa County Courthouse Block, at 625 Court St., was added to the National Register of Historic Places on Dec 28, 1989. It was among the first 2 of Martinez’s 9 listings. The Register lists it for its politics and architecture, at the local level. It describes its style as Classical Revival, as it does for 103 other California listings. The district takes in 2 historic buildings. Four more Register listings are within a quarter mile.
PDFRead the original nominationThe form that put it on the Register, with its history, photos and a map · 57 MB · National Archives↗Make it a walk: 5 landmarks in about 10 minutes
625 Court St., Martinez · about 0.3 miles on foot, as the crow flies
4 more Register listings within 2 miles
★ National Historic Landmark · D district · B building · S site. Each opens its own page.
Classical Revival style, nearby
Other National Register listings within 25 miles described as Classical Revival.
Memories of Contra Costa County Courthouse Block
The record says what it is. Neighbors know what it means.
Your answer becomes a post in Town Square.
Questions about Contra Costa County Courthouse Block
Is Contra Costa County Courthouse Block on the National Register of Historic Places?
Yes. It was added on Dec 28, 1989 (Register number 89002113).
Is Contra Costa County Courthouse Block a National Historic Landmark?
No. It is on the National Register; California has 141 National Historic Landmarks. The nearest is John Muir National Historic Site, 1.9 miles away.
Can you visit Contra Costa County Courthouse Block?
Our record doesn’t say whether it is open to visitors. Many listed buildings are private, so it may only be seen from the street.
Where can I read the history of Contra Costa County Courthouse Block?
In its National Register nomination, the form that put it on the Register: a 57 MB PDF at the National Archives, linked on this page.
Sources: National Park Service, National Register of Historic Places (05/22/2026) · National Archives catalog record 123858514. Map tiles © OpenStreetMap contributors.