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FAQs

Field Survey Section

No, the Field Survey Section only performs surveys on County owned land, roads, and flood control channels, also Newport Bay, Dana Point Harbor, and Sunset Beach Marina.  Information about having a private survey done or how to obtain a Professional Surveyor to survey your own lot or boundary is available at the County Service Center or by calling  (714) 967-0852. 

Please call Wade Weaver, Deputy County Surveyor, Field Unit, at (714) 955-0151.  We certainly appreciate being notified when a survey monument is disturbed, or if one is about to be disturbed.

You may contact Wade Weaver, Deputy County Surveyor, Field Unit, at (714) 955-0151. 

Landbase Information Systems

In 1989, the Southern California Gas Company contacted Orange County to see if we would be interested in entering a partnership to create a parcel-level digital basemap.  The County of Orange then entered into such a partnership.  The County provided the land records (maps, deeds, horizontal control, and conversion quality control) and the Gas Company was responsible for converting these records into digital form.

The County of Orange Digital Landbase Mapping System "OC Landbase", or Land Information System (LIS), is a very accurate parcel-level digital basemap containing over 687,000 subdivision parcels that are linked to text information (attributes) such as Assessor Parcel Number, owner name and street address. The OC Landbase also contains graphic information for street centerlines and various districts.

The OC Landbase is currently stored in an ESRI Parcel Fabric dataset and is maintained using ESRI Parcel Editor. Going beyond the requirements of the California Public Records Act, the County of Orange translates and releases subject OC Landbase data in ESRI shape file format annually.

A link to view the Board Resolution 11-196 and the new OC Landbase license agreement template that govern the licensing and usage of the OC Landbase, is here:
Board Resolution 11-196 

Yes, the OC Landbase contains an independent compilation of land records, other spatial data, and copyrighted matter.  Any licensee of said data shall take all reasonable precautions to protect and maintain the confidentiality of the OC Landbase. 

Yes, the County of Orange Landbase is registered to the California Coordinate System, North American Datum 83.  The foundation of this system is the County Geodetic Control Network, consisting of over 2,700 control points on an approximate half-mile grid.  This strong foundation makes the County Landbase very accurate, and allows new map information to be added, without losing accuracy.

The County Landbase is updated on a regular basis.  Final tract maps and parcel maps are updated to the Landbase within 4-6 weeks of recordation.  Other land information such as records-of-survey, lot line adjustments, deeds, and boundary annexations are also posted to the Landbase on a regular basis.

Yes, the Landbase Maintenance section maintains several district features. These include census tract, city, college, school, irrigation, judicial and supervisorial district boundaries.  

Map Checking

Upon submitting a map for review, a screen check of the map is performed to verify that the map is in compliance with the Orange County Board of Supervisor's Ordinance 3984.  The Ordinance requires that the boundary is tied to two OCS GPS Horizontal Control points.  Further, the Ordinance requires that the map's Basis of Bearings be derived from the inverse between the two points. 

The map submittal package is reviewed to ensure that necessary reference materials have been submitted (i.e. title reports, traverse closures, underlying recorded maps, tie notes, deeds, official records).  

Maps are logged and checked by the date received.  Once the map checker has examined the map for boundary determination, drafting standards, and mathematical correctness, the map checker will write a correction letter and submit it for review by a Licensed Land Surveyor, prior to it being returned to the submitter for review and necessary corrections. 

For all map submittals or number issuance, create an account at myOCeservices.ocgov.com

For any questions concerning map submittals, please call our Public Counter at, (714) 967-0852.