The Saco City Council has unanimously voted to sell the city’s historic fire station to a developer who plans on converting it into housing for the elderly and retail space. The decision, met by cheers at Monday’s meeting, means the building will be spared from the wrecking ball. Some people had advocated for tearing down the Works Progress Administration project built in 1938 to make way for parking space. The council accepted an offer of $100,000 for the property, which has been empty since the fire department moved to a new building in April 2011. Developer Cynthia Taylor says she will try to get the building on the National Register of Historic Places. She will invest $1.2 million in the building and hopes to begin construction in the spring.