Moss Beach Building Permits Are Frozen Until 2028. Here's What Still Works.
Two comparable properties on the same Moss Beach block can carry very different value right now for a reason that has nothing to do with lot size, ocean glimpse, or condition. One comes with an active county building permit already attached. The other doesn't. That gap matters more than it did a year ago, and it will keep mattering until at least January 1, 2028, because San Mateo County has effectively stopped issuing new residential building permits anywhere in the unincorporated Midcoast, Moss Beach included.
This isn't a housing shortage story or a construction-cost story. It's a rationing story, and understanding the rationing is now part of due diligence for anyone looking at land, a teardown, or an ADU addition in Moss Beach.
The freeze is narrower than the headline suggests, and the details decide whether it affects you.
San Mateo County's Local Coastal Program caps new residential building permits in the urban Midcoast, which covers unincorporated Montara, Moss Beach, El Granada, Princeton, and Miramar, at an average of 40 units per year, including ADUs. As of the county's most recent update, the department cannot accept new building permit applications for new residential units until January 1, 2028, unless the cap itself gets amended first.
What still moves: planning permit applications. The county continues accepting and processing those, and it's encouraging applicants to file now, because entitlement review alone can take months. What doesn't move without a planning permit already in hand: a building permit, which is the document you need before a contractor can pull a slab or frame a wall. If you're adding an ADU that doesn't typically require a planning permit, the county's guidance is to file a Formal Coastal Development Exemption now to get a place in line.
The City of Half Moon Bay isn't part of this. It's incorporated and governed separately. This cap applies specifically to the unincorporated Midcoast.
The cap didn't tighten because the county changed its mind about growth. It tightened because of how the cap's own math works.
| Detail | |
|---|---|
| Annual cap | 40 residential units per year, averaged over a rolling three-year window |
| Exception | Affordable housing can exceed the cap in a given year |
| Trade-off | Any overage gets subtracted from the following two years' allowance |
| 2025 permits issued | 102 total: 71 affordable, 31 non-affordable |
| Result for 2026-2027 | Only 18 new residential building permits allowed, combined, across both years |
| Status as of July 2026 | 5 issued, 13 remaining before the department halts entirely until 2028 |
The 71 affordable units came from a single project: Cypress Point, a MidPen Housing Corporation community going up at the corner of Carlos and Sierra Streets in Moss Beach on a 10.875-acre parcel. It's a mix of one, two, and three-bedroom units, sized to house around 210 people once complete. Construction started December 16, 2025, with an estimated 20 months to finish, putting occupancy somewhere around August 2027.
That single project, built to satisfy a real housing need, is also the reason the county has almost nothing left to give anyone else through the end of 2027.
The rolling three-year average is the part worth sitting with, because it's not a bureaucratic footnote. It's the whole mechanism.
The county's Local Coastal Program treats affordable housing as a priority use, which is why it's allowed to exceed the annual cap. That's a reasonable policy on its own. But the averaging rule means every unit built above the 40-unit line in one year has to be paid back with fewer units allowed in the next two. Cypress Point alone accounted for 71 of the 102 units permitted in 2025, more than the entire annual cap by itself. Add 31 non-affordable units on top, and the three-year average was blown out far enough that the county's own accounting leaves room for only 18 more units across two full years.
The practical effect is that a policy designed to protect housing supply for lower-income Coastside workers has, as a side effect, frozen market-rate building for everyone else in the Midcoast, including a homeowner in Moss Beach who just wants to add a bedroom.
San Mateo County knows this is a problem and is trying to change the 40-unit cap through a Local Coastal Program amendment. That process has to go through the California Coastal Commission, and county planning staff have said it could take a year or more to complete.
It's also not moving smoothly on the local side. The county's Planning Commission voted 4-1 in late May 2026 to recommend the Board of Supervisors approve a proposed amendment, but the Midcoast Community Council raised concerns at that same meeting. The county held a public meeting on June 30, 2026 at Supervisor Ray Mueller's office in Princeton to walk through alternatives, and Mueller has indicated a preference for one specific option among several presented. A resident survey on the alternatives closed July 3, 2026.
None of that has produced a final answer yet. If you're timing a purchase or a build around when the cap might loosen, the honest answer right now is that nobody, including the county, has a firm date beyond the January 1, 2028 floor.
If your plan involves adding square footage, a new structure, or an ADU anywhere in the unincorporated Midcoast, the permit status of a property is now a variable worth pricing in before you write an offer, not after.
Ask these questions early, ideally before you're in contract:
A property with completed entitlements is functionally different from an identical lot with none, and that difference will likely widen the longer the freeze holds. This is also worth checking if you own property already and have been sitting on remodel plans. Getting a planning application filed now, even if you don't intend to build immediately, secures your place in a queue that will only get longer.
Does this cap apply to El Granada and Montara too, or just Moss Beach? It applies across the entire unincorporated urban Midcoast, which the Midcoast Community Council defines as Montara, Moss Beach, El Granada, Princeton, and Miramar. Moss Beach is where the project that triggered the current shortfall is being built, but the permit ceiling is shared countywide across all five communities.
Does the freeze affect remodels that don't add units? The cap is on building permits for new residential units, including ADUs. A remodel that doesn't create a new dwelling unit isn't the same category, though any project in the Coastal Zone still needs to clear its own Coastal Development Permit or exemption review separately.
Is there any way to build sooner than 2028? Two paths exist right now. One is a property with an already-active building permit application, which continues processing. The other is filing a planning permit or, for ADUs, a Formal Coastal Development Exemption now, which places the project on a waitlist for prioritized building permit issuance once the county has capacity again, whether that's from the January 2028 reset or an earlier LCP amendment.
Could the cap change before 2028? It's possible. The county is pursuing a Local Coastal Program amendment that would need California Coastal Commission approval, and staff have estimated that process could take a year or more. There's no confirmed date yet.
If you're weighing a lot, a fixer, or an addition anywhere in Moss Beach or the broader Midcoast, this is exactly the kind of local mechanic that doesn't show up on a listing sheet. I've spent more than two decades working this coastline, and I'd rather walk you through what a specific parcel's permit history actually means before you're deep into escrow. Reach out to Frank's Home Search and let's connect.
