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Office Locations

County Administration South

County Administration South

601 North Ross Street
Santa Ana, CA 92701

Click map icon here for directions.

Mailing Address:
P.O. Box 4048
Santa Ana, CA 92702-4048

  • To submit an online service request, please visit MyOCeServices.ocgov.com
    myOCeServices
  • If you need to report a flood emergency, please call 9-1-1 immediately.

OC Public Works Headquarters

Administrative Services

Hours of Operation:
Monday - Friday | 8:00 a.m. to 5:00 p.m.
Phone: 714.667.8800
  • Director’s Office and Administration, 4th Floor
  • Building Services, 2nd Floor
  • Human Resource Services, 4th Floor

OC Development Services

Hours of Operation:
Monday - Friday | 8:00 a.m. to 4:00 p.m.
Phone: 714.667.8888
  • County Service Center, 1st Floor
  • Permitting
  • Building and Safety
  • Inspection Services
  • Land Development
  • Planning

OC Survey

Hours of Operation:
Monday - Friday | 8:00 a.m. to 4:00 p.m.
Phone: 714.967.0852
  • OC Survey Public Counter, County Service Center, 1st Floor
  • Corner Records
  • Geodetic
  • Parcel, Record of Survey and Tract Maps
  • Right-of-Way Engineering Public Counter, Room 252

OC Infrastructure Programs

3rd Floor
Hours of Operation:
Monday - Friday | 7:30 a.m. to 4:00 p.m.
Phone: 714.647.3999 | 714.245.4589
  • Programming
  • Engineering Design
  • Flood Programs
  • Project Management
  • Traffic and Development Support

OC Facilities Design and
Construction Management

Phone: 714.667.4938

Glassell Campus

OC Operations & Maintenance

2301 Glassell Street, Building A
Orange, CA 92865

Click map iconhere for directions.

Hours of Operation:
Monday - Friday | 6:00 a.m. - 4:30 p.m.
Phone: 714.955.0200

OC Environmental Resources

Agricultural Commissioner /
Sealer of Weights
& Measures

222 East Bristol Lane
Orange, CA 92865

Click map iconhere for directions.

Hours of Operation:
Monday - Friday | 8:00 a.m. to 12:00 p.m. / 1:00 p.m. to 5:00 p.m.
Phone: 714.955.0100

OC Watersheds Program

2301 North Glassell Street
Orange, CA 92865

Click map iconhere for directions.

Hours of Operation:
Monday - Friday | 8:00 am to 5:00 pm
Phone: 714.955.0600
24-Hour Water Pollution Hotline: 1.877.89.SPILL (77455)

Fruit Street Campus

OC Construction

1152 East Fruit Street
Santa Ana, CA 92701

Click map iconhere for directions.

Hours of Operation:
Monday - Friday | 8:00 a.m. to 5:00 p.m.
Phone: 714.245.4500

OC Facilities Maintenance
& Central Utility Facility

(CNG)
1143 E. Fruit Street
Santa Ana, CA 92701-4204

Click map iconhere for directions.

1152 E. Fruit Street
Santa Ana, CA 92701-4204

Click map icon here for directions.

Phone: 714.647.3999

Compressed Natural Gas (CNG) Fueling Station
Operating Hours: 7 Days/24 Hours Self-Serve Fueling

Products Available: Compressed Natural Gas
2023 W. Collins Avenue
Orange, CA 92867

OC Fleet Services

Transportation Fleet Management - Repair Shop 1
1143 E. Fruit Street
Santa Ana, CA 92701-4204

Click map icon here for directions.

Hours of Operation:
Monday - Friday | 7:00 a.m. - 5:00 p.m.
Phone: 714.567.7744