HCD Said Yes to Greenfield's Sewer Moratorium — With Strings

You've got housing moving through a California city — pending entitlements, maybe a housing element site — and the city announces a building moratorium tied to its sewer plant. Can it actually stop you? And if it does, what are you still owed?

Under the Housing Crisis Act, a city can't just declare a housing moratorium. It has to submit the ordinance to HCD and get approval first — and that approval is rare. Greenfield got one. On June 10, 2026, HCD approved the city's moratorium on new wastewater connections.

Here's the thing: the approval came loaded with conditions — and those conditions show exactly what a legitimate health-and-safety moratorium looks like, and how much protection the law still gives the projects caught inside.

What Greenfield was dealing with

Greenfield's wastewater plant was constructed in 1978 and upgraded in 2002 to 1.5 million gallons a day. After a levee break and repeated spills, "In October 2024, the Water Board reduced the permitted flow from 1.5 MGD to 1.2 MGD" — a state order, not a city choice.

Could septic fill the gap? No. HCD recorded the city's finding that septic "is not environmentally suitable due to Greenfield's status as a terminal basin with high percolation rates," and noted the Water Board agreed. So the city adopted Ordinance No. 575, a moratorium on entitlements for projects needing a new sewer connection, and sent it to HCD.

HCD's bright line: an imminent threat, nothing softer

The Housing Crisis Act sets one hard standard. To impose a moratorium, a city must show "an imminent threat to the health and safety of persons residing in, or within the immediate vicinity of, the area subject to the moratorium" (Gov. Code § 66300(b)(1)(B)(i)).

Raw sewage spilling during flood events clears it:

"HCD hereby notifies the City that it is approving the proposed building moratorium due to an imminent threat to health and safety."

It's the same standard HCD uses to reject moratoriums that don't clear it — traffic congestion, or an open-ended infrastructure-funding condition with no end date. Greenfield is the rare case that met the bar. HCD's approval runs through June 30, 2030, which doubles as the Water Board's deadline for a new facility.

Verified against the HCD Determination Letter to the City of Greenfield (Housing Crisis Act moratorium approval), June 10, 2026.

The strings attached

HCD didn't hand over a blank check. It approved "subject to the conditions described above," and warned it "may revoke its approval of the Moratorium if the City fails to satisfy the conditions on the required timelines." Four conditions:

• Annual status reports, due by year's end, tracked against Water Board milestones running to "June 30, 2030: Complete construction and startup of Phase I of the new plant."
• A connection priority list within 30 days, in an explicit order: (1) 100 percent affordable projects, (2) mixed-income projects with the most affordable units, (3) residential projects, (4) nonresidential developments.
• A housing element revision within three months. Greenfield's 2023 element claimed its 730-unit RHNA "can be accommodated with the available capacity" — which, HCD noted, "contradicts the reality that there is insufficient wastewater treatment capacity." The revision must also stress that the moratorium "takes place at the entitlement stage, allowing projects the opportunity to obtain planning approvals during the period."
• A RHNA rollover. Under Gov. Code § 65584.09, if the plant isn't finished on time, the unaccommodated portion of the city's 6th Cycle (2023–2031) allocation "must be carried over into the 7th Cycle."

Why this matters for your project

Even an approved moratorium isn't a black hole. Entitlements keep moving, because the pause bites at connection — not at planning review. Capacity, as it frees up, goes to affordable first; HCD even named one to jump the queue — the "34-unit project located at 296 Apple Avenue," 100 percent affordable and in the inventory. And HCD told the city to "provide appropriate sewer hookup to projects that have already submitted for building permits as of the date of this approval."

So when a city points a sewer moratorium at your project, ask: Did HCD actually approve it? Is there a real, Water-Board-grade imminent threat — or just congestion? And where does your project sit on the priority list?

One caution that matters: this is a Determination Letter — HCD's position approving one city's ordinance, not a court ruling and not settled law. Courts remain the final arbiter of what the Housing Crisis Act requires. Before you rely on any of it — to pause housing, or to fight a pause — verify with the jurisdiction and your own counsel. Nothing here is legal advice.

What CrossBeam does with it

When the letter lands on your desk, CrossBeam turns it around the same day: what each item is actually asking, the code or law behind it, and a written response you can hand to your team or your attorney — the back-and-forth that used to eat weeks, done in a couple of hours.