California STR Regulatory Patchwork in 2026 a Guide From the Redwood

Thomas Garner
Jul 15
14 min read

Updated: 17 hours ago

If you own, operate, or are shopping for a short-term rental in California, you've probably already discovered the uncomfortable truth: there is no California short-term rental law. There's no statewide permit, no statewide night cap, no statewide occupancy tax rate. What exists instead is a patchwork of hundreds of independent city and county ordinances, each written by a different planning department, each responding to a different local housing fight, each enforced (or not enforced) on its own timeline.

That patchwork gets a second layer of complexity; almost nowhere else in the country has to deal with it. Any property that sits in California's coastal zone — a strip that runs from the Oregon border down through places like the Redwood Coast towns, Half Moon Bay, and Cambria — is also subject to review by the California Coastal Commission under the California Coastal Act. A city or county can adopt whatever STR ordinance it wants, but if that ordinance affects the coastal zone, the Coastal Commission must certify it as part of the jurisdiction's Local Coastal Program before it's fully enforceable. That's why you'll see coastal towns take years longer to finalize STR rules than inland ones, and why the rules that come out the other end often look different from what the city council originally proposed — the Coastal Commission has historically pushed back hard against caps or residency rules it sees as effectively banning visitor accommodations in the coastal zone.

So before any single town's rule will make sense, hold two ideas at once: local ordinance layer (every city and county sets its own rules, independently, often incompatible with the county or town next door) and coastal review layer (a second, state-level check that applies only inside the coastal zone, and only adds friction — it doesn't replace the local rule). Nowhere is this dual complexity more visible than in California, and nowhere in this pilot's nationwide research did we find a state with regulatory geography this scattered. This guide walks it region by region, from the fog belt of the Redwood Coast to the high desert.

North Coast / Redwood: Humboldt County, Trinidad, and Mendocino

Humboldt County adopted a countywide short-term rental ordinance on March 5, 2024, after roughly two years of hearings and a delayed vote. The ordinance caps STRs at 2% of housing units in the Greater Humboldt Bay Area — the populated coastal strip that includes Ferndale — and at 5% of units elsewhere in the unincorporated county, with Shelter Cove specifically exempt from the cap. Existing operators could be grandfathered into the new system, but only if they were operating before October 26, 2023; anyone who started after that date had to compete for a permit under the new cap like everyone else. The ordinance also introduced a new STR permit fee, which has drawn its share of "money grab" criticism from local hosts in county meetings and letters to the editor since it took effect.

Enforcement in Humboldt is not theoretical. In February 2026, the Ferndale Unified School District superintendent was publicly reported by the Lost Coast Outpost for operating an unpermitted vacation rental in city limits for roughly a year — without a business license, without paying the applicable taxes, and, according to the reporting, after allegedly telling city staff she'd stopped when she hadn't. The property in question couldn't have been legally permitted in the first place because it was within 600 feet of an already-registered vacation rental. It's an useful data point for hosts weighing whether to skip the paperwork: even in a rural county, code enforcement is watching, and local journalism is watching the enforcement.

Trinidad, a small incorporated city inside Humboldt County, runs its own rule on top of the county's — this is the local-ordinance-layer point in action, because Trinidad's city limits aren't governed by the county ordinance at all. Trinidad's Resident STR license, tied to a homeowner's primary residence, caps the number of nights available for operation at 59 per year. A separate Full-Time STR license exists for non-owner-occupied rentals but requires a minimum rental period of 60 days, effectively pushing it out of the short-term category entirely. Every STR type in Trinidad also carries a 2-night minimum stay. The net effect is that Trinidad is meaningfully more restrictive than the unincorporated county around it — a genuine short-term Airbnb-style stay is really only viable there under the 59-night resident license.

Mendocino County layers coastal-zone character preservation on top of the same dual-layer framework. The clearest example is the Town of Mendocino itself, where county code caps the town at no more than 10 licensed Vacation Home Rentals and 20 Single Unit Rentals, explicitly to preserve "Town character" and keep it functioning as a residential community rather than a visitor-services district. New Vacation Home Rentals are restricted to specific mixed-use zoning districts. Beyond that town-specific cap, Mendocino County's broader coastal STR framework is still being actively worked through — the county has been engaged in a multi-year Local Coastal Program update process with the Coastal Commission, and as of early 2026, supervisors were still debating permitting and enforcement mechanics for the inland portion of the county. We were not able to fully confirm the current countywide coastal ordinance mechanics for Mendocino outside the Town of Mendocino's specific numeric caps in this research pass — verify the current status as a draft before publishing specific claims about countywide Mendocino Coast rules.

Central Coast: Half Moon Bay, San Mateo County, and Cambria

Half Moon Bay's short-term rental ordinance, certified by the California Coastal Commission and in effect since 2024, is built around owner presence. To operate an STR, the property owner must occupy the home as their primary residence for at least 6 months of the year, and if the operator isn't the owner, the owner must give written consent. Unhosted rentals — meaning the primary resident isn't present during the guest's stay — are capped at 60 nights per year. There's no nightcap on hosted rentals where the owner is present. STRs are also banned in ADUs. The Coastal Commission's sign-off mattered here specifically because the Commission has generally resisted approving ordinances that functionally eliminate visitor accommodations in the coastal zone; the 60-night unhosted cap, rather than an outright ban, was part of what got this one certified.

San Mateo County has a separate rule for its own unincorporated coastal zone — a different jurisdiction from the City of Half Moon Bay, even though they're neighbors. The county's coastal-zone STR ordinance caps rentals at 180 nights per calendar year, but with an important carve-out: any night the owner is present at the property doesn't count against the cap, so an owner-hosted rental can effectively run beyond 180 nights. STRs are restricted to legal residences zoned R-1 (single-family) or R-3 (multi-family) within the coastal zone, and the ordinance sets occupancy and parking requirements tied to bedroom count.

Cambria, an unincorporated community in San Luis Obispo County, operates under the county's Coastal Zone Land Use Ordinance rather than a Cambria-specific city code (Cambria isn't incorporated). The relevant provision caps rental of a residence at four individual tenancies per calendar month — a turnover limit rather than a total night cap. Notably, unlike Half Moon Bay or Humboldt, Cambria's rule imposes no hard cap on the total number of STR permits countywide, making it meaningfully more open to new entrants than Half Moon Bay's owner-residency model, even though both sit in the coastal zone. STRs are barred from ADUs, guesthouses, and agricultural worker housing regardless of zoning.

Desert & Sierra: Idyllwild, Bishop, and Truckee/North Lake Tahoe

Idyllwild-Pine Cove, in Riverside County's mountain district, runs the tightest numeric cap in this guide: 500 STR certificates total, with no more than 2 certificates per owner and a 150-foot spacing requirement between any two STRs. As of late 2024, the area sat at 462 issued certificates against that 500 cap, so the ceiling hadn't yet been fully reached, but it's close. When the number of available certificates falls below the cap and demand exceeds supply, Riverside County runs a biannual lottery — evaluated every January and July — to award the remaining slots rather than on a first-come, first-served basis.

Enforcement here has been aggressive and well-documented. Riverside County's own semiannual report showed that between January and July 2024, the county filed 539 cease-and-desist orders, fielded 5,392 complaint calls, conducted 866 site inspections, and issued citations totaling roughly $56,000 — but that tally covers the combined Idyllwild-Pine Cove and Riverside County Wine Country (Temecula Valley) districts together, not Idyllwild alone. It's also worth not conflating the two districts' spacing rules: Idyllwild-Pine Cove's spacing requirement is 150 feet between STRs, while Wine Country's is a separate, larger 500-foot rule. They're often cited interchangeably online, and they shouldn't be.

Bishop, in Inyo County on the eastern Sierra side, actually has two separate rule sets worth knowing apart. Inyo County's own STR rule has required hosted-only rentals on residential land since 2020; the county followed that with a 2022–2023 moratorium on new permits, then reopened with a permit cap set per sub-area — as few as 2 permits in some zones, up to 29 in the South/Southeast County sub-area — with previously grandfathered permits exempted from the new caps. Inyo County also levies a 12% Transient Occupancy Tax.

Separately, the City of Bishop — its own incorporated jurisdiction, distinct from the surrounding county — adopted Ordinance No. 602 on January 26, 2026, now codified in Bishop Municipal Code Chapter 17.74. This is adopted law, not a draft: it requires owner-occupied primary residency (verified with a driver's license, utility bills, mortgage statement, or voter registration), a city business license renewed annually, and a permit that's valid for one year before renewal.

Truckee and North Lake Tahoe constitute the most permit-constrained STR market in this pilot's nationwide research. The Town of Truckee has a hard cap of 1,255 STR registrations, and that cap is fully reached — new applicants go onto a waitlist rather than getting an immediate permit. As of the Town of Truckee's own live tracking page in July 2026, the waitlist stood at 304 people, with a current wait time trending around 16 to 22 months before a registration opens up. Truckee also added a new 365-day waiting period after a property sale before the new owner can apply for an STR registration, which closes off a workaround some buyers had used to jump ahead of the general waitlist by acquiring an already-registered property. Placer County's separate North Lake Tahoe jurisdiction — the unincorporated area around the lake, distinct from the Town of Truckee — caps permits at 3,900 and, as of June 2026, had roughly 300 permits remaining before hitting that ceiling. Because Truckee's permit mechanics are genuinely complex — waitlist tiers, transfer rules, the new post-sale waiting period — this guide intentionally summarizes rather than repeats them in full; if you're actively working the Truckee waitlist, our dedicated Truckee STR permit guide walks through the process step by step.

Topical Authority Markets: Julian & Borrego Springs, and Mount Shasta & Dunsmuir

Two markets round out California's regulatory map with honestly thinner confirmed detail. Julian and Borrego Springs, both unincorporated communities in San Diego County, fall under county rather than city jurisdiction; Borrego Springs in particular appears to run a comparatively low-friction STR environment requiring a Transient Occupancy Tax certificate (8% of gross receipts) rather than a hard numeric cap, but we were not able to independently confirm specific Julian-area ordinance mechanics — zoning restrictions, caps, or spacing rules — in this research pass, and that detail should be verified before this guide states anything more specific about Julian.

Mount Shasta and Dunsmuir sit in Siskiyou County, and the picture there is split between city and county rules that shouldn't be conflated. The City of Mount Shasta caps STR licenses at 3% of total city housing units, with STRs in residential zones capped at 19 total and new STRs otherwise restricted to C-1 and C-2 commercial zoning. Unincorporated Siskiyou County — which governs the areas immediately around Dunsmuir and outside Mount Shasta's city limits — runs a different standard requiring vacation rentals to sit on at least 2.5 acres in designated zoning districts, with occupancy capped by septic capacity and a requirement for a locally based, 24/7-available professional property manager. The city-versus-county split here is confirmed, but a host evaluating a specific Dunsmuir parcel should verify which jurisdiction actually governs that address before assuming either rule set applies.

The Bottom Line

California doesn't have one STR law — it has hundreds, layered with a state coastal-review process that most other states in this pilot simply don't have to navigate. A property in Ferndale, a property in Half Moon Bay, and a property in Truckee are all "California short-term rentals" in name only; the permit process, the night caps, the residency requirements, and the enforcement posture are entirely different in each place, and sometimes different again between the city and the county that surrounds it. The through-line for any host or investor evaluating a California market is simple: find the specific jurisdiction — city or unincorporated county — check whether it sits in the coastal zone, and read that jurisdiction's ordinance directly. Nothing else in this state can be assumed to transfer from one town to the next.

Keep going on Crest & Cove: the Crest & Cove intro · local SEO keywords that actually book · the five elements of a converting hero · how to compare STR marketing agencies · Asheville paddling spots worth the drive · Ferndale against AirROI $25,638 · Trinidad against AirROI $57,010 · Destin against AirROI, not leftover year.

Work with Crest & Cove Creative

Clerks stay. Crest & Cove does not invent leftover occupancy. Nationwide. crestcove.co or (256) 998-7502. Reach out at crestcove.co or (256) 998-7502.

Frequently Asked Questions

Is there a single statewide short-term rental law in California?

California has no statewide STR permit system or night cap. Every city and county writes and enforces its own ordinance independently, which is why rules can differ dramatically between neighboring jurisdictions, and even between a city and the unincorporated county that surrounds it. A property in Ferndale, a property in Half Moon Bay, and a property in Truckee are all "California short-term rentals" in name only; the permit process, the night caps, the residency requirements, and the enforcement posture are entirely different in each place, and sometimes different again between the city and the county that surrounds it.

What is the California Coastal Commission's role in short-term rental regulation?

Any STR ordinance that applies within California's coastal zone — a strip running along most of the coastline, including the Redwood Coast towns, Half Moon Bay, and Cambria — must be certified by the Coastal Commission as part of that jurisdiction's Local Coastal Program before it's fully enforceable. This adds a state-level review layer on top of the local ordinance and is a big part of why coastal STR rules take longer to finalize than inland ones.

What is Humboldt County's short-term rental permit cap?

Humboldt County's ordinance, adopted March 5, 2024, caps STRs at 2% of housing units in the Greater Humboldt Bay Area (which includes Ferndale) and 5% elsewhere in the unincorporated county, with Shelter Cove exempt. Grandfathering only applies to operators active before October 26, 2023. The ordinance caps STRs at 2% of housing units in the Greater Humboldt Bay Area — the populated coastal strip that includes Ferndale — and at 5% of units elsewhere in the unincorporated county, with Shelter Cove specifically exempt from the cap.

How does Idyllwild's short-term rental certificate lottery work?

Riverside County caps Idyllwild-Pine Cove at 500 STR certificates, with a 2-certificate-per-owner limit and 150-foot spacing between properties. Every January and July, the county evaluates whether the number of issued certificates has fallen below the 500 cap; if it has, a lottery is held to fill the remaining slots. When the number of available certificates falls below the cap and demand exceeds supply, Riverside County runs a biannual lottery — evaluated every January and July — to award the remaining slots rather than on a first-come, first-served basis.

How long is the Truckee short-term rental permit waitlist?

As of July 2026, the Town of Truckee's live waitlist tracker showed 304 people waiting, with current wait times trending around 16 to 22 months. Truckee's registration cap of 1,255 is fully reached, and a new 365-day post-sale waiting period now applies before a new owner can apply. As of the Town of Truckee's own live tracking page in July 2026, the waitlist stood at 304 people, with a current wait time trending around 16 to 22 months before a registration opens up.

Is Bishop's owner-occupied short-term rental rule still a draft?

No — as of this writing, it's adopted law. The City of Bishop's Ordinance No. 602 was enacted on January 26, 2026, and is codified in Bishop Municipal Code Chapter 17.74, which requires owner-occupied primary residency to be verified through documents such as a driver's license or utility bill. This is separate from Inyo County's own hosted-only rule for the surrounding unincorporated area, which has been in place since 2020.

Does Cambria have a cap on the total number of short-term rental permits?

Cambria, under San Luis Obispo County's coastal zone rules, limits rentals to four individual tenancies per calendar month but does not cap the total number of STR permits issued, making it more open to new operators than a hard-capped market like Half Moon Bay or Humboldt County. Notably, unlike Half Moon Bay or Humboldt, Cambria's rule imposes no hard cap on the total number of STR permits countywide, making it meaningfully more open to new entrants than Half Moon Bay's owner-residency model, even though both sit in the coastal zone.

Which California markets in this guide still need ordinance details verified?

Mendocino County's broader coastal-zone STR mechanics beyond the Town of Mendocino's specific numeric caps, Julian's specific San Diego County ordinance details, and the precise Dunsmuir-area jurisdictional lines within Siskiyou County were not fully confirmed in this research pass. Hosts evaluating those specific markets should verify current rules directly with the relevant planning department before relying on any secondary source, including this one.

About the Authors

Crest & Cove Creative is a short-term rental marketing agency founded by Thomas Garner and Jacob Mishalanie. We build direct-booking brands, listing-optimization systems, and market-specific content strategies for independent STR operators nationwide, including emerging corridors such as California's Desert & Sierra Markets. Keep going on Crest & Cove: the Crest & Cove intro · local SEO keywords that actually book · the five elements of a converting hero · how to compare STR marketing agencies · Asheville paddling spots worth the drive · Ferndale against AirROI $25,638 · Trinidad against AirROI $57,010 · Destin against AirROI, not leftover year.

Sources

Verified in this research pass via direct web search of official government and news sources:. Julian and Borrego Springs, both unincorporated communities in San Diego County, fall under county rather than city jurisdiction; Borrego Springs in particular appears to run a comparatively low-friction STR environment requiring a Transient Occupancy Tax certificate (8% of gross receipts) rather than a hard numeric cap, but we were not able to independently confirm specific Julian-area ordinance mechanics — zoning restrictions, caps, or spacing rules — in this research pass, and that detail should be verified before this guide states anything more specific about Julian.

Humboldt County's STR ordinance adoption date (March 5, 2024), 2%/5% cap structure, Greater Humboldt Bay Area/Ferndale coverage, October 26, 2023 grandfathering cutoff, and the February 2026 Ferndale Unified School District superintendent enforcement case (Lost Coast Outpost reporting).
Trinidad's Resident STR 59-night cap, Full-Time STR 60-day minimum, and 2-night minimum stay requirement (Trinidad STR ordinance).
Half Moon Bay's 2024 owner-residency ordinance (6+ months primary residency, 60-night unhosted cap, ADU ban) and San Mateo County's separate unincorporated coastal-zone 180-night cap with owner-present exception.
Cambria's four-tenancies-per-month limit under San Luis Obispo County's Coastal Zone Land Use Ordinance, and confirmation it carries no total permit cap.
Idyllwild-Pine Cove's 500-certificate cap, 2-per-owner limit, 150-foot spacing rule, and biannual lottery mechanics (Riverside County ordinance and Riverside County Transportation & Land Management Agency semiannual report); the corrected enforcement statistics (539 cease-and-desist orders and roughly $56,000 in citations, January–July 2024, combined Idyllwild-Pine Cove and Wine Country districts) and the distinct 500-foot Wine Country spacing rule.
Bishop's Ordinance No. 602 (adopted January 26, 2026, Bishop Municipal Code Chapter 17.74) as adopted law, and Inyo County's separate hosted-only rule in place since 2020.
Truckee's 1,255-registration cap and the corrected waitlist figures (304 people, 16–22 month wait as of the Town of Truckee's live tracking page, July 2026) and the new 365-day post-sale waiting period; Placer County/North Lake Tahoe's 3,900-permit cap with roughly 300 remaining as of June 2026.
Mount Shasta's city ordinance (3% housing-unit cap, 19-unit residential-zone sub-cap, C-1/C-2 zoning restriction) and Siskiyou County's separate unincorporated-area standard (2.5-acre minimum, septic-based occupancy cap, local 24/7 property manager requirement).