Mon, Nov 24, 2025·Half Moon Bay, California·Planning Commission

Half Moon Bay Joint Study Session on Fire Hazard Maps & Safety Element Update (2025-11-24)

Discussion Breakdown

Public Safety50%
Environmental Protection14%
Procedural10%
Engineering And Infrastructure8%
Water And Wastewater Management5%
Historic Preservation4%
Transportation Safety4%
Fiscal Sustainability2%
Community Engagement2%
Homelessness1%

Summary

Half Moon Bay Joint Study Session on Fire Hazard Maps & Safety Element Update (2025-11-24)

City Council and the Planning Commission held a joint special study session focused on (1) updated Fire Hazard Severity Zone (FHSZ) mapping and defensible space/“Zone Zero” implications, and (2) progress on the City’s Safety Element update under the Peninsula Resilience Planning (PrEP) project. Discussion emphasized the difference between hazard vs. risk (including insurance risk), likely inspection and disclosure requirements, the potential impact on downtown (street trees/awnings), and the need to balance wildfire measures with flood, erosion, habitat, heat, and community character.

Discussion Items

  • Item 2A — Local Responsibility Area (LRA) Fire Hazard Severity Zone maps & defensible space (“Zone Zero”)

    • Staff report (Todd Seely, Interim Public Works Director):
      • Updated FHSZ maps were received by the Coastside Fire Protection District (CFPD) on Feb. 24, 2025 (from the State Fire Marshal).
      • Staff stressed the maps evaluate hazard, not risk; hazard is based on physical conditions and expected fire behavior over 30–50 years without considering mitigation.
      • Noted uncertainty about timing and enforcement of new requirements; flagged potential impacts to residents and City assets, including downtown liability because part of downtown is mapped Very High.
      • Raised cost concerns for vegetation management in hard-to-access areas (e.g., Frenchman’s Creek Park), citing an estimate of about $30,000 per tree using cranes and noting about 70 trees in that area.
      • Cited the Governor’s emergency declaration as mainly easing environmental entitlements for removals, but no large-scale grant funding identified for major tree removal.
    • Technical Q&A (Cal Fire Unit Chief Jed Wilson / CFPD):
      • Explained modeling inputs (fuels, topography, weather, fire history) and that newer mapping includes ember-cast considerations; maps are not parcel-based.
      • Inspection and regulatory differences by zone:
        • In Very High (LRA): CFPD stated it will begin inspecting Very High properties; CFPD estimated 1,684 homes to inspect in Half Moon Bay and expected a multi-year (about three-year) phased approach due to staffing needs.
        • High: disclosure requirements and Building Code Chapter 7A apply; inspections not required as described for Very High.
        • Moderate: CFPD stated there are no additional requirements.
      • Zone Zero timeline (as discussed): staff referenced a CERT resource noting Jan. 1, 2026 for new construction Zone Zero, with work on existing homes beginning 2026–2028.
      • CFPD described a collaborative, education-forward approach and stated a “heavy hammer” approach is not preferred.
      • Confirmed insurance risk maps are separate and typically proprietary to carriers; Cal Fire does not incorporate them into hazard maps.
      • Confirmed power lines are not included as a delineating factor in the hazard mapping model (discussion distinguished hazard vs. ignition-risk topics).
      • Clarified defensible space concepts: 0–5 feet (Zone Zero), a reduction zone to ~30 feet, and further reduction out to 100 feet, with acknowledgement many downtown parcels lack those distances.
      • Noted future map updates are on an approximate 5–8 year cycle (one speaker later summarized it as “five years”).
    • Downtown impacts raised by Council/Commission and staff:
      • Seely flagged potential implications for street trees that fall within five feet of structures and raised concerns about possible impacts on awnings.
      • Wilson suggested a replacement-by-attrition approach (e.g., replacing with non-combustible awnings over time) rather than immediate removal.
      • Discussion included interest in whether historic/heritage downtown could receive special consideration; staff said they were not aware of exemptions but would look into it.
      • Councilmember comments emphasized incentivizing home hardening and neighborhood-level approaches (e.g., Firewise Communities programs that may yield insurance discounts).
    • Eucalyptus / habitat considerations:
      • Commissioners questioned treatment of eucalyptus given protected species habitat (e.g., monarchs). CFPD/Seely stated projects would still require analysis (including CEQA as applicable) and that any removals would be approached transitionally, with biologist involvement and potential replanting elsewhere.
    • Collaboration beyond City limits:
      • Commission/council discussed whether fuel mitigation in adjacent unincorporated (SRA) areas could reduce hazard affecting the City; CFPD said collaboration would be key and that fuels reduction can affect future hazard mapping.
  • Item 2B — Safety Element Update (PrEP Project) progress report

    • Presentation (Leslie Lako, Community Development Director; Aaron Fannensteel, consultant team):
      • Explained the Safety Element as a required General Plan component addressing hazards, emergency preparedness, and climate change effects.
      • PrEP is a multi-jurisdictional effort (San Mateo County + eight cities) intended to pool resources, coordinate engagement, and align with related planning (e.g., Hazard Mitigation Plan, OneShoreline).
      • Noted that because Half Moon Bay has Very High FHSZ areas, the Safety Element must be reviewed by Cal Fire and approved by the Board of Forestry and Fire Protection.
      • Clarified document structure: goals (desired conditions), policies (decision-making tools), and implementation actions (specific steps).
      • Highlighted public engagement methods (library workshop, stakeholder meetings, communities of concern, online mapping/survey tools).
      • Consultant emphasized many maps in the plan are “static,” but the online viewer allows users to explore layers.
    • Council/Commission discussion themes and requested refinements:
      • Human-caused hazards: Consultant said hazardous materials and airport safety are included but are not required by Government Code; hazardous materials details can become quickly dated.
      • Flooding and permitting: Council members expressed concern about needing “emergency permits” rather than being able to do proactive flood mitigation and described challenges coordinating multi-agency permits (Coastal Commission, Water Board, Army Corps, Fish & Wildlife, etc.).
      • Evacuation planning: Multiple speakers emphasized that Half Moon Bay’s key strategy in many scenarios is evacuation and raised concerns about single ingress/egress neighborhoods. Discussion referenced state requirements (e.g., SB 99, AB 747) and the need for stronger, clearer evacuation communication.
      • Shelter-in-place: A commissioner requested identifying safe shelter-in-place locations if evacuation cannot be completed in time.
      • Pilarcitos Dam / inundation: Commissioners requested clearer policies or actions for warning/communication and mitigation planning related to the Pilarcitos Dam and creek inundation.
      • Utilities undergrounding: A commissioner asked for stronger prioritization of undergrounding utilities, framing overhead lines as a key fire ignition concern.
      • Holistic approach / tradeoffs: Commissioners emphasized that wildfire vegetation actions can affect heat, shade, runoff, erosion, habitat, and downtown character; requested more integrated guidance and species selection.
      • Urban tree canopy vs. wildfire: Discussion flagged apparent tension between policies supporting shade/urban canopy (e.g., SCP 7-1 and SCP 7-3 were cited) and new wildfire standards; consultant stated shading can be achieved by multiple means, and tree species/placement matter for fire behavior.
      • Community-facing tools: Requests included better guidance on “what residents can do now,” including where to find recommended fire-resistant trees/plants and more visible tsunami/evacuation signage.
    • Process / deadline: Lako requested written comments—especially on the fire section—by Nov. 20 to support Cal Fire review, while noting comments would continue to be accepted through the process.

Public Comments & Testimony

  • Jimmy Benjamin (resident, 400 Pilarcitos Ave):
    • Expressed concern about unexpected consequences of thinning trees in riparian corridors on alluvial fans, stating it can increase erosion and bank widening, potentially moving trees closer to homes or creating other hazards if vegetation is removed.
    • In the Safety Element discussion, advocated for more targeted evacuation messaging (warning only neighborhoods that need it) to avoid overloading limited evacuation routes.
    • Raised concerns about erosion/sedimentation and stated much of Half Moon Bay is on an alluvial fan and broadly subject to liquefaction; also pointed to smaller impoundments (not covered by typical dam rules) as inundation hazards.
  • Sarah O’Sullivan (Coastside Books, Main Street):
    • Shared personal evacuation experience from the 2020 fire and stated Main Street served as a “sanctuary.”
    • Urged the City to preserve downtown’s character and not “get rid of everything” in response to potential fire hazards.
  • Colleen Henry:
    • Warned that removing vegetation/amenities could make downtown a “desolate wasteland.”
    • Emphasized protecting the historic downtown’s economic vitality.
  • Janice Moody (downtown business owner; UC Master Gardener):
    • Stated she learned her area is Very High hazard due to nearby hills as potential fuel.
    • Described planned home-hardening measures (e.g., changing vent screens to 1/8-inch mesh; replacing an adjoining fence with metal).
    • Requested waivers/exceptions, particularly for succulents, arguing they are water-rich and not easily ignited.
    • Recommended maintenance practices: well-hydrated landscaping, limbing up trees, removing dead debris, and using composted mulch described as fire-retardant.
  • Amber Stowe (Paper Crane, Main Street):
    • Criticized applying statewide rules uniformly across different climate zones and warned that stripping downtown greenery would create heat and air-quality harms.
    • Argued ignition sources relate to upstream causes (including utilities) and cautioned against “destroying our downtown before a wildfire even got here.”

Key Outcomes

  • Report received / study session held; no formal votes recorded in the transcript.
  • CFPD / Cal Fire next steps (as described):
    • Zone Zero rules expected from the Board of Forestry by Dec. 31, 2025 (deadline referenced).
    • CFPD stated it would begin inspections focused on Very High areas and phase implementation over multiple years; CFPD indicated outreach (including a social media “blitz” explaining inspections) and collaboration with the City.
  • City next steps (as described by staff):
    • “Wait and see” approach on final Zone Zero rule details while planning for potential impacts, seeking collaborations with neighboring jurisdictions/property owners, and minimizing City fiscal impacts.
    • Staff and officials invited public and commissioner/council written comments, with emphasis on the fire section by Nov. 20 to support required Cal Fire review of the Safety Element.
  • Potential future policy/design direction (discussed, not adopted):
    • Explore protections/strategies for heritage/historic downtown in the context of wildfire standards.
    • Consider leveraging or refining downtown streetscape designs (e.g., tree placement concepts from the Streetscapes Master Plan) to maintain character while improving resilience.
    • Strengthen evacuation communications (including zone-based messaging), signage, shelter-in-place planning, stream gauge/early warning efforts, and inter-jurisdictional fuel mitigation coordination.

Meeting Transcript

And we'll now have a um we'll have a roll call again, I believe. According to the agenda. Okay. All right, I'm gonna start with council. Councilmember Johnson. Here. Councilmember Nagengast. Here. Councilmember Penrose? Here. Vice Mayor Reddick? Here. Mayor Brownstone. Here. Commissioner Del Nagro. Commissioner Rems. Here. Commissioner Hernandez. I am present. And Chair Reddick. I'm here. We have a quorum. Great. Thanks everyone. Welcome Planning Commission. It's been a while since we had a joint session, so nice to see folks again. We're going to start with um, this is a special study session, and in a moment, staff will um tell you about what's going on and how much we'll be covering today. And um again, this is just a beginning to um talk about fire hazards and our safety element. This will be a continuing conversation. Um we'll start with um item 2A, local responsibility and area fire hazard severity zone maps. And we'll receive a report about fire hazard severity zone maps and implications to the Half Moon Bay community associated with the maps and defensive space zones. Uh good evening, Mr. Mayor, uh Vice Mayor Ruddick, council members, Commissioner Ruddick, and planning commission members. Uh my name is Todd Seely. I'm the interim public works director, and it is a pleasure to be here with you this evening. Uh, this evening I'm joined uh by Calfire Unit Chief Jed Wilson. Um he is here to support the public works department and kind of uh give us a little bit of information on the fire mapping and and how it could potentially affect the city. Um see here, is this running through a little bit of technical issues. There we go. Um our recommendation for you this evening is to receive a report about fire hazard severity zone maps and the implications to the Half Moon Bay community associated with the maps and the defensible space zones. A little bit of background on this item. On February 24th, 2025, the coastide fire protection district received the updated fire hazard severity zone maps from the state fire marshal's office. I've provided all of you here this evening with a copy of uh the current map, and there are copies available for the public at the uh front counter as well if anyone's interested in taking a look at them. Uh these maps were developed pursuant to government code section 51178, which mandates the identification and classification of areas in California based on their relative fire hazard severity. Uh fire hazard severity zone maps arose from major destructive fires, prompting the recognition of these areas and strategies to reduce wildfire risks. Uh the fire hazard severity zone maps evaluate hazard, not risk. So that's an important uh thing to take into consideration when we're looking at this. Hazard is based on the physical conditions that create a likelihood and an expected fire behavior over a 30 to 50 year period without considering mitigation efforts. Uh risk is the potential damage a fire can cause the area under existing conditions, not account are accounting for any modifications such as fuel reduction projects or defensible space. Uh some discussion we'd like to have this evening is since the publication of these maps.