Senate committee advances bill tightening limits on local down‑zoning and early judicial review

At a meeting of the Senate Local Government & Housing Committee, members advanced House Bill 10‑93, a measure sponsors said would tighten state protections against local measures that reduce residential density without offset and would let local governments seek early judicial review of proposed land‑use ordinances.

The bill’s prime sponsor, Senator Ball, told the committee the measure is aimed at preserving recent gains in housing affordability and closing “end runs” around the earlier law HB 23 12 55. “So what this bill does, 10 93, is that it strengthens, HB 23 12 55 and continues the positive trend that we're seeing in our state right now with regard to the cost of housing by, preventing local governments from imposing laws that have the effect of increasing density, even when that's not done through an explicit cap,” Ball said.

The bill also would create a pre‑enforcement option for municipalities to obtain a court ruling on whether an initiated ordinance is lawful before an election or implementation, an element supporters said would avoid wasted campaigns and litigation.

Why it matters: Sponsors argued HB 10‑93 responds to local initiatives that, in their view, circumvent state law limiting local growth caps and that those initiatives have forced costly litigation or retroactive changes that stop development. “This bill newly allows localities to get a judicial determination of the legality of a code provision before a costly election,” attorney Rob Greer told the committee, calling that feature a “very smart streamlining of the process.” Opponents countered that the bill unduly restricts municipal planning authority and could interfere with legitimate local choices, including wildfire‑safety planning.

Supporters and opponents: Testifying in favor were business and housing advocates including the Denver Metro Chamber and several housing‑policy groups. Max Nardo of the Southwest Energy Efficiency Project described recent local actions he said were shrinking development capacity and increasing sprawl pressure, citing one example in Lakewood where a proposed project of about 400 apartments was threatened by a voter initiative that would have increased park‑dedication requirements and, he said, “would cause the project to no longer pencil.”

Opponents included the Colorado Municipal League and the Colorado Counties, Inc. Bev Staples of the Colorado Municipal League said municipalities “only have 2 options when presented with an initiated ordinance, either pass the law or schedule an election for voters to approve or reject it,” and urged the committee to reject HB 10‑93 on the grounds that it would limit local planning authority. Reagan Shane of Colorado Counties, Inc. said the group was “in an opposed position” because of concerns about the ability of counties to respond to local needs in emergencies or infrastructure constraints.

Wildlife and technical fixes: Western Resource Advocates’ John Holt testified in a neutral‑to‑supportive posture and requested a narrowly drawn exemption for mapped wildlife crossings and movement corridors to avoid unintended impacts on low‑density areas needed for wildlife. Senator Paul, responding to concerns about wildfire and the wildland‑urban interface raised by Senator Snyder, said sponsors were discussing a possible floor amendment on wildlife crossings and that the bill allows tools such as transferring density within a jurisdiction to preserve safety concerns.

Amendment and committee action: The committee unanimously adopted amendment L005, which sponsors described as a narrow clarification that the measure applies to “residential density or residential use” and establishes a baseline measurement date of July 1, 2025, for comparing future changes. Senator Ball moved the bill to the Committee of the Whole; the motion passed on a recorded vote of 4 to 3. The clerk announced the tally as follows: Senator Bazely — No; Senator Ball — Aye; Senator Liston — No; Senator Rich — No; Senator Snyder — Yes; Vice Chair Gonzales — Yes; Chair — Aye.

Where it goes next: The bill was sent to the Committee of the Whole for further consideration with the adopted technical amendment.

Ending: Committee discussion indicated sponsors are open to limited refinements before floor action, particularly to address wildfire and other narrowly defined public‑safety exceptions. The bill’s proponents argued the measure would reduce litigation and stop retroactive local changes that can halt projects already in development; opponents said it would restrict local land‑use discretion and urged continued work with municipal and county governments.