School district leaders, the statewide teachers union and other groups are urging lawmakers to address housing affordability for school employees. Right now, state law allows school districts with fewer than 2,000 students to build teacher cottages and other employee housing. Sen. Jesse Salomon, a Democrat whose district includes Shoreline, Edmonds and northwest Seattle, has sponsored a bill that would expand that to all school districts . It advanced out of the Senate Committee on Early Learning and K-12 Education on Wednesday.