A planned new K-8 school in the under-served south Stamford area could be housed in two separate buildings about a mile from each other, officials said. A school building master plan presented in February called for building or expanding four schools, including a potential new K-8 school in south Stamford. As part of the plan, four schools would shutter: Cloonan and Dolan middle schools, Toquam and Murphy. Currently, the 100,000-square-foot building at 83 Lockwood Ave. houses the Children’s Learning Centers of Fairfield County pre-school program and the nonprofit Domus Kids, which runs a number of programs inside the structure. If approved, the city would be eligible for a reimbursement rate of 60 percent for the two projects. Previously, Stamford received a 20 percent refund for school construction projects, but that was changed through special legislation on the state level.