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A new report on homelessness in Colorado released by the Common Sense Institute has come under fire for muddying the waters for lawmakers and other stakeholders working to get people off the streets and back on their feet.

The report claimed an Intervention First model, where people only get housing if they agree to addiction treatment and workforce training, is more effective than the Housing First with Supportive Services approach, which it said has failed to decrease homelessness.

Cathy Alderman, chief communications and public policy officer at the Colorado Coalition for the Homeless, said the report does not even mention rising housing costs.

"When we see housing costs go up, when we see rents increase, we see homelessness increase," Alderman pointed out. "When we don't see more affordable housing being made available to low-income households, we see homelessness increase."

Between 2019 and 2023, Denver's already high rents rose by nearly 30 percent. Last year, there was a gap of more than 134,000 affordable housing units across the state for workers earning 30 percent of the median income or less. The Institute defended its report and said by email the public deserves to know whether their tax dollars are helping reduce homelessness, not just reshuffling where people sleep.

According to the National Low-Income Housing Coalition, Housing First reduces homelessness by 88 percent and improves housing stability by 41 percent compared with Intervention First programs, which Alderman called a one-size-fits-all approach.

"It said you must participate with those specific services in order to be eligible for housing," Alderman noted. "There are lots of people experiencing homelessness that don't need substance-use treatment, that don't need behavioral health. They need housing."

Housing First programs provide rapid access to housing and care teams connect people to employment opportunities, medical and mental health care and substance use treatment but the services are not required or used as a punitive tool.

Alderman stressed the model works but current investments do not meet the scale of the problem.

"If we had the housing resources and we were providing more housing with supportive services to larger populations of people experiencing homelessness, we would absolutely see a reduction in homelessness," Alderman asserted. "But we've never had the political will to do that."