King County is asking voters to allow it to collect $1.2 billion from property taxes to pay for behavioral health services.

The County Council authorized a levy for that amount to be put on the April 25 special-election ballot.

The proposal, which would raise the funds through a levy spread over nine years, would fund creation of five regional crisis care centers, residential treatment beds, growth of the behavioral health workforce pipeline, and immediate services while centers are being built. The cost for the owner of a median-valued home would be about $121 in 2024, the first year of the levy, officials said.

The initial proposal of the levy came from County Executive Dow Constantine and a regional coalition of government leaders.