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Surveying the lands of northern California since 1975


Phelps and Associates Land Surveyors serves primarily the North Bay, Sonoma and Marin counties.  We have excellent esprit de corps, the staff is truly competent, and we zoom...


We have knowledge and experience in over 4,000 land parcels across the state.  Counties include Alameda, Contra Costa, Lake, Marin, Mendocino, Napa, San Benito, San Francisco, San Joaquin, San Mateo and Ventura. 

Our team can provide clear answers concerning your property.  The long history and rapport we have with local agencies and other professionals allow us to effectively navigate your project through to completion.

We are licensed by the Board of Professional Engineers and Land Surveyors.  Fred Phelps and Joe Hughes are licensed by the state of California. Our field equipment consists of the latest in electronic theodolites with built-in distance measuring capability, along with real time kinematic Global Positioning System receivers. 


Services include:

  • Land Planning / Property Consulting
  • Corner Reconnaissance
  • Property Surveys / G.P.S.
  • Topographic Mapping
  • Lot Splits / Subdivisions / Lot Line Adjustments
  • Certificates of Compliance
  • Elevation Certificates / Aerial Mapping
  • Construction Staking / A.L.T.A. Surveys
  • Litigation Surveys / Expert Witness / Court Exhibits
  • Access and Utility Easements


How can we help you?

Our Approach Works


Our office is located at 632 Petaluma Avenue, Sebastopol
Hours: 8:00am-4:00pm Monday-Friday
Call (707)829-0400