by Staff Reporter | Apr 26, 2026 | News
By Staff Reporter |
The housing moratorium crippling new construction in the Valley imposed by Gov. Katie Hobbs’ administration may not go on for much longer.
The Maricopa County Superior Court struck down the moratorium on Tuesday in Home Builders Association of Central Arizona v. Arizona Department of Water Resources, et al.
Under Hobbs, the Arizona Department of Water Resources (ADWR) issued new groundwater regulations rolled out in November 2024 dubbed the “Unmet Demand Rule” and the “Depth-to Water Rule.”
Per the court, these rules went impermissibly beyond the longstanding obligation for builders outlined in Arizona law, which required assurance of sufficient groundwater supply in order for each development to take place (100 years’ worth).
ADWR imposed the rules based on a groundwater model claiming that unmet demand and exceedance of the 1,000-foot depth-to-water limit existed throughout Phoenix. In other words, their regulations meant a developer seeking a certificate for one subdivision had to answer not just for their development area, but for the water status of the entire Valley. This resulted in ADWR’s indefinite suspension on granting certificates to any developers.
The consequence of these regulations brought new home construction to a halt throughout Maricopa County. The Home Builders Association of Central Arizona (HBACA), a trade association for the residential construction and development industry, challenged ADWR’s authority to impose new rules.
ADWR attempted to style the Unmet Demand Rule as a new implementation of an old rule, but the Maricopa Superior Court Judge Scott Blaney rejected that view as an undoing of the necessary limitations of administrative agency powers.
“‘To permit this would neuter all statutory limits on agency rule-making[,]’” stated Blaney in his ruling, quoting HBACA’s argument.
Blaney also found that ADWR didn’t follow state law on agency rulemaking under the Administrative Procedures Act. Blaney invalidated both rules.
“ADWR acted unlawfully by implementing two agency rules without first complying with the mandatory provisions of the APA[,]” wrote Blaney.
The Arizona Free Enterprise Club (AFEC) called the court ruling a win and criticized ADWR’s model justifying the overturned regulations as flawed.
“The Maricopa County Superior Court has struck down the Hobbs Administration’s attempt to impose a sweeping housing moratorium based on its flawed water model — a stinging loss for Katie Hobbs and a ruling that the state failed to follow proper legal procedures,” stated AFEC. “This is a major victory for transparency, accountability, and Arizona homeowners.”
Jonathan Riches, vice president for litigation and general counsel for the Goldwater Institute, represented the Home Builders Association of Central Arizona. Goldwater Institute’s vice president for legal affairs, Timothy Sandefur, hailed the ruling as a necessary check on an administrative state attempting to impose greater burdens than that which the law requires.
“The case is also a reminder of the dangerous power that the pervasive ‘administrative state’ wields over our daily lives — as unelected and unaccountable bureaucracies exert authority over every detail of construction, business, and property ownership, to cite just a few examples,” said Sandefur. “The only solution to the arbitrariness and lawlessness of these agencies is to rein in their power — and for courts to ensure that they obey the law.”
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by Matthew Holloway | Apr 23, 2026 | News
By Matthew Holloway |
Maricopa County Superior Court Judge Scott Blaney ruled Tuesday that the Arizona Department of Water Resources (ADWR) did not comply with state law when implementing a policy that restricted residential development in parts of Maricopa County.
In the order, the court found the agency “did not comply” with Arizona law in adopting the challenged requirements and declared the policy invalid.
The policy, commonly referred to as the “Unmet Demand” approach, was used by ADWR in evaluating whether proposed developments could meet the state’s requirement to demonstrate a 100-year assured water supply in the Phoenix Active Management Area.
Arizona law requires developers in designated areas to obtain a certificate of assured water supply demonstrating access to sufficient groundwater or other supplies for 100 years before construction can proceed.
According to the lawsuit, ADWR’s application of an “Unmet Demand” standard required consideration of projected groundwater demand across the broader management area rather than focusing on the water supply available to an individual development.
The court rejected the agency’s justification for the policy, stating that its interpretation of the law “lacks merit.”
The case was filed in January 2025 by the Goldwater Institute on behalf of the Home Builders Association of Central Arizona, challenging the policy’s legality under state administrative procedures.
In a statement following the ruling, Goldwater Institute Vice President for Legal Affairs Timothy Sandefur said the court’s decision invalidated the agency’s approach to regulating development under the policy.
He explained, “The reality is that although Phoenix is a desert, there’s plenty of water to serve the needs of development. Yet the ‘Unmet Demand Rule’ transformed overnight how home building could work in Maricopa County—restricting construction at a time in which the limited supplies of residences have caused housing prices to soar. And that was illegal, because the Department had no power to adopt the ‘Unmet Demand Rule’ in the first place.”
He added, “State law sets forth a process for creating new rules, and the Department didn’t bother trying to comply with those processes. Instead, it claimed that it had simply discovered somehow that this was what the law required all along.”
The challenged policy had affected development planning in portions of the Phoenix metropolitan area, including Buckeye and Queen Creek, where groundwater availability determinations are required for new subdivisions, according to court filings and statements in the case.
Sandefur called the ruling “a crucial victory for Arizonans, not just in Phoenix but throughout the state, who might well have been on the Department’s target list had it been allowed to get away with redefining the rules in this way.”
He added, “The case is also a reminder of the dangerous power that the pervasive ‘administrative state’ wields over our daily lives—as unelected and unaccountable bureaucracies exert authority over every detail of construction, business, and property ownership, to cite just a few examples. The only solution to the arbitrariness and lawlessness of these agencies is to rein in their power—and for courts to ensure that they obey the law.”
The court’s ruling focused on whether ADWR followed the procedures required under Arizona law to implement new regulatory requirements. The order concluded that the agency did not follow those procedures in adopting the “Unmet Demand Rule” approach.
In a statement to Capitol Media, a Department of Water Resources spokesman said the agency intends to appeal Judge Blaney’s ruling, stating, “Although there is no final judgment yet, the Arizona Department of Water Resources intends to challenge the decision once it is final.”
Matthew Holloway is a senior reporter for AZ Free News. Follow him on X for his latest stories, or email tips to Matthew@azfreenews.com.
