Assessor's parcel maps can be obtained from Contra Costa County via
CCMAP. Search by address or by parcel number.
Recorded subdivision and parcel maps can be obtained from the
Contra Costa County Public Works Department. Benchmarks can also be searched utilizing this on-line tool or referencing the benchmark data shown on the subdivision maps.
Should the websites have any issues, please contact Contra Costa County Public Works by emailing
[email protected],