DENVER/DENVER — A bill advancing through the Colorado General Assembly would require all municipalities with more than 100,000 residents to allow multi-family residential development within a half-mile of any transit stop with at least 15-minute peak service frequency — a mandate that would directly override Denver’s existing neighborhood plans in areas including Park Hill, Congress Park, Platt Park, and the blocks surrounding several light rail stations where current zoning limits density to single-family and low-density configurations.

House Bill 1420, sponsored by a coalition of Front Range Democrats and backed by the governor’s office, passed the House Transportation and Local Government Committee last week on a 7-4 party-line vote and is expected to reach the full House floor within the month. A companion bill in the Senate has attracted bipartisan support, and the governor’s office has confirmed the governor would sign a version of the legislation if it reaches his desk.

Proponents argue that Colorado’s housing shortage — particularly severe in the Denver metro, where vacancy rates remain near historic lows and housing costs have outpaced income growth for most of the past decade — requires a state-level override of local zoning decisions that have effectively frozen density in the neighborhoods with the best transit access.

“The places with the most jobs, the best schools, and the most transit are also the places with the strictest rules about who gets to live there,” said the bill’s lead sponsor, a Denver-area representative, during committee testimony. “That’s not a coincidence, and it’s not something local control has been willing to fix on its own.”

Opposition has come from a cross-ideological coalition that includes neighborhood associations across Denver’s established residential districts and several suburban mayors who argue the bill eliminates local planning authority that communities have used responsibly. Denver’s planning department has not taken a formal position, but Mayor [Name] has said publicly that while the city supports “transit-oriented housing goals,” it has concerns about “the degree to which this bill constrains Denver’s existing comprehensive planning process.”

In Park Hill, where several blocks along the 40th and Colorado station area fall within the bill’s half-mile radius, a neighborhood association meeting on the legislation drew more than 80 residents and produced a formal resolution of opposition. Similar meetings have been held in the Congress Park neighborhood near the 9th and Colorado development area.

The bill includes provisions allowing cities to impose design standards and affordability requirements on projects permitted under the mandate, and exempts properties within Denver’s locally designated historic districts. Critics say those provisions are insufficient protections and that the historic district exemption is too narrow.

The bill’s fiscal note estimates that statewide, the legislation would make approximately 340,000 additional parcels eligible for multi-family development — a theoretical ceiling that housing economists say would not be realized immediately but would shift market conditions over time by expanding the supply of developable land.

A full House floor vote is expected in early April.