Surveying & Map Checking
New Service Counter Hours
Effective October 2, 2017, Department of Public Works counter service hours at the 555 County Center, 5th Floor, Redwood City office will be Monday-Friday, 8am-Noon and 1pm-5pm.
What We Do
The Public Works and Map Checking Unit:
- Review subdivision maps within Unincorporated San Mateo County. Review all Records of Survey, and Corner Records in San Mateo County to assure technical accuracy and adherence to various State and County regulations.
- Perform field surveys in connection with Public Works related projects.
- Maintain indexes to various surveying and mapping records.
Surveying Research Resources
Survey and Subdivision Maps - June 24, 2016 *New Interface and new URL* View / download / print all of the maps that were available in the previous GIS
Maps not filed for recording - An index of maps in County archives occasionally mentioned in older deeds
San Mateo County Genealogical Society - The SMCGS has some land-related records in their databases.
On Site Research
The following records are not available online at this time but can be researched on-site at the Public Works Office:
- Vertical Benchmarks
- Field Books
- Right-of-Way Maps
- Miscellaneous Records
8:00am to 4:30pm
Please note: All survey research must be performed by the surveyor / engineer. Public Works staff is only available to assist in locating the types of records to be researched and in reproducing maps and field books. We cannot take phone or email requests to research the above mentioned records.