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VIDEOS. From San Mateo County Planning meeting on Wednesday, May 27th, 2026 at 9:00am, as a hybrid meeting, with remote comment. Agenda and correspondence.
Agenda. Staff Report for Item #4: “Consideration of a Design Review and Coastal Development Permit (CDP), pursuant to Chapters 8.252 and 8.256 of the San Mateo County Zoning Regulations, to allow construction of a new 2,726 sq. ft. single-family residence with an attached two-car garage, on a 5,147 sq. ft. undeveloped parcel.
Correspondence for Neighbor at 847 San Ramon





More on Seal Cove and Montara Water and Sanitary District on Coastside Buzz
Seal Cove Resident Asks LAFCo to Urge Montara Water and Sanitary District to Respond More Quickly to PRA Requests; With Small Staff, MWSD Will Have More Records Available by April 17th; April 2, 2026
New 2025 Seal Cove Geologic Study Shows Landslide will Continue; Supervisor Mueller Explains County to Explore Remediation Costs but a Stormwater Assessment District May be Necessary; February 24, 2026
Congressman Sam Liccardo Secures $1.1M in Federal Funding for Montara Water and Sanitary District to Relocate Water and Sewer Pipes After Seal Cove Landslides; January 23, 2026
DATE CHANGE: County Holds Community Meeting to Discuss Newly Released 2025 Seal Cove Geologic Study; January 6, 2026
As Land Continues to Slide, the Long-Awaited Seal Cove Geologic Study has been Released for Public Review; Supervisor Mueller to Hold Community Meeting in January 2026; December 18, 2025
CANCELLED. Supervisor Mueller Holds Community Meeting for Seal Cove Updated Geologic Assessment; September 2, 2025
Midcoast Community Council Receives Presentation on Seal Cove Geologic History from Retired USGS Hydrogeologist who Lives in Seal Cove; June 26, 2025
HMB History Association Lecture ~ The Hidden History of Seal Cove and the Fitzgerald Marine Reserve; June 12, 2025
Moss Beach Seal Cove Landslide Residents Meeting at Supervisor Mueller’s Oceano Mall Office, June 2, 2025
SIGN UP for San Mateo County Building and Planning’s Seal Cove Critical Geotechnical Hazards Area for Updates, May 21, 2025
MSWD Water Leak Along Pescadero-Seal Cove Fault in Moss Beach Causes Water Discoloration; October 7, 2020
3 Geotechnical Reports and 1 Lawsuit Confirm the Consistency of Seal Cove’s Landslides Over 60 Years
1971 Geologic report of the Seal Cove-Moss Beach Area by F. Beach Leighton and Associates.
Lawsuit: 1975 Kopetzke v. County of San Mateo, Board. of Supervisors. “Since the exercise of police power was proper, it did not constitute a taking and no compensation is due. Chicago, Burlington & Quincy Railway Co. v. Illinois, 200 U.S. 561, 26 S. Ct. 341, 50 L. Ed. 596 (1906). To the extent plaintiffs’ losses result from any inherent geologic defects in their properties, the ancient rule of caveat emptor must apply. And to the extent their losses result from the regulatory activities of the Board based on the geologic findings of the Leighton Report, they constitute the unequal burden which citizens are frequently called upon to bear in the interests of the general welfare. Hadacheck v. Sebastian, supra.“
See also William Cotton and Associates 1980 Geologic Analysis of the Seal Cove area commissioned by San Mateo County.
San Mateo County Planning and Building’s Seal Cove Critical Geotechnical Hazards Area webpage, including the Seal Cove 2025 Cotton and Shires Geologic Study.




Cotton and Shires Seal Cove Geotechnical Hazard Zones 12/2025


San Mateo County Plannning Commission

San Mateo County Board of Supervisors (BoS) Agendas
The Supervisors meet on the 2nd and 4th Tuesdays of the month at 9:00am, as a hybrid meeting.



