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Public Works will re-open our front counter to the public on July 6 and start providing some modified services.  Our hours will be 8 – 5, with closure from 12 – 1:30 for sanitation. Masks are mandatory in our building, and we ask that you adhere to physical distancing protocol. We will have limited services at our front counter and will not be accepting drop in meetings.  Please contact 805-781-5252 to make an appointment with staff.  Bus passes can be purchased at the Kiosk on the corner of Osos and Palm or by phone via Follow us on Twitter @SLOCountyPWD for the latest updates.

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County Surveyor


The Public Works Development Services counter is now closed to the public except for payments, but we are continuing services. Please call 805-781-5252 to make an appointment with staff. To protect the health of customers and employees, our staff will work remotely to process your permits and conduct map review. Map reviews are being performed remotely on PDF submittals that are submitted via email to  the County Surveyor. This new process is explained in the document in this link . A Record of Survey review and recording fee calculator is located in this link.

1879 Map of San Luis Obispo County


County Surveyor - Edward M. Reading

The County Surveyor’s Office is responsible for the review of subdivision maps,  Records of Survey, and Corner Records for the County of San Luis Obispo. The County Surveyor’s Office is also charged with maintaining accurate land survey records for the County of San Luis Obispo.

What we do:

  • Review subdivision maps and documents for conformance with state and County law.
  • Review Records of Survey and Corner Records for conformance with state and County law.
  • Maintain records and indexes of survey related documents as required by state law.
  • Provide survey related information to the public.
  • Prepare, review and approve various district boundaries for the Local Agency Formation Commission (LAFCO).
  • Provide survey monument preservation research for county capital improvement projects.
  • Provide Right-of-Way information for the Department of Public Works.
  • Provide land surveying services to other County departments.

What we don't do:

  • Surveys for private property owners
  • Recommend private Surveyors
  • Private property easement research

Services we offer:

Links to other useful sites:

San Luis Obispo County Surveyors

  1. William Hutton 1850-1852
  2. William Borland 1853-1854
  3. David P. Mallagh 1855-1857
  4. L. Abby 1858
  5. B. M. Henry 1859-1862
  6. L. Dant 1863-1866
  7. A. L. Cervantes 1867-1868
  8. Robert R. Harris 1869-1874
  9. George Lakui 1876
  10. J. H. Doyle 1877
  11. Thomas Bingham 1877-1878
  12. George Lakui 1878
  13. Exra Carpenter 1879-1881
  14. Robert R. Harris 1882-1883
  15. Exra Carpenter 1884-1885
  16. George Storey 1886-1891
  17. George Spurrier 1892-1893
  18. Victor H. Woods 1894-1901
  19. Austin F. Parsons 1902-1922
  20. William J. Black 1922-1925
  21. John P. Black 1926-1932
  22. Kenneth Beck 1933-1961
  23. C. Richard Gallagher 1961-1967
  24. George Protopapas 1967-1991
  25. Clint Milne 1991-1995
  26. Tim Nanson 1995-2001
  27. Glen Priddy 2001-2009
  28. Dan Manion 2009-2010
  29. Doug Rion 2010-2016
  30. Edward M. Reading 2016-



Contact Public Works via web form, email, or call us at (805) 781-5252.