If you wish to research recorded maps, property lines, private and commercial, we have the following maps and records available.
Maps & Field Notes: (Copies may be obtained at OC Survey Counter (714) 967-0852 or online at Land Records
- Recorded Tracts
- Recorded Parcels
- Recorded Records of Surveys
- Orange County Survey Alignment Books [OCS] (Contains information on street alignments in the Unincorporated Territory of Orange County).
- Orange County Survey Tie Books [CSTB] (Contains information on street centerline ties in the Unincorporated Territory of Orange County).
- California Division of Transportation Field Notes [CALTRANS] (Available only at the local Caltrans Office).
- Benchmarks (Contains information Vertical Control in the Unincorporated Territory of Orange County).
- Alpha Named Tracts (Ex. Yorba Tract.)
- Rancho Partition Maps (Indexed by name).
- U.S. Government Township Plats (Indexed by name).
- U.S. Government Township Plats Notes (Indexed by name).
- S.H. Finley Field Book (Contains early County survey data. Indexed and available at the Records Management Unit).
- California Division of Transportation [CALTRANS] Contains information on the following:
- Monument Maps
- Relinquishment Maps
- R/W Maps Coordinate
- Control Maps
All records are indexed on cards by street names located in Central Files.
- Construction Plans (Contains information as it relates to structures or roads built and contracted by the County of Orange. Indexed on cards by street names located in Central Files).
- Aerial Photos (Aerial photos of areas of Orange County. To view Aerial Photos contact Maria Abrogar at 714-967-0815).
- City Boundaries (Contains information on the annexation and incorporation of all cities located in Orange County. (Indexed and filed in the Boundary Unit).
- Taxing Districts (Indexed and filed in the Boundary Unit).
- Political Districts (Contains information on the boundaries of all Supervisorial Districts. Indexed and filed in the Boundary Unit).
- Horizontal Control (Contains information on the Cadastral Points located in the County of Orange. Indexed and filed in the Geodetic Unit).
- Flood Control Notes (Contains field notes as it relates to flood control structures located in the County of Orange. Indexed and filed in the Records Management Unit).
- Assessor's Maps (Contains information on all parcels taxable in the County of Orange. Available at the Orange County Assessor's Office. Ph: (714) 834-2758).
- Property Deeds (Indexed at all Title Companies and at the County Recorder's Office. Ph: (714) 834-2887).
- Official Maps (Contains information on early subdivisions of the County. Available at the County Recorder's Office).
- Right-of-Way [R/W] Maps (Contains information on R/W held by the County of Orange. Maps and information located in the O.C. Right-of-Way Engineering. Ph: (714) 667-9650.
- City Field Notes (Contains information on street centerline tie notes. Available only at the applicable City).
- Corner Records (Contains information on property or boundary corners which have been replaced by private surveyors. Un-indexed and available at the Public Service Counter).
- Lot Line Adjustments (Contains information on boundary lines which have been adjusted in Unincorporated Territory and approved by the County of Orange. Available at the Central Files on microfiche).
- Highway Lighting District (Information available from the Boundary Unit).
- Orange County Street Lighting Assessment District [OCSLAD] (Contains information on street lighting districts. Available from the Boundary Unit).
- Tract Improvement Plans (Indexed and available from Central Files).
- Street Improvement Plans (Indexed and available from Central Files).
- Various District Maps (Including those not previously mentioned such as Sewer & Water Districts. Available from Boundary Unit).
