The City Council Tuesday will hold a public hearing on a special permit application by D&D Auto Sales to move its used-car business from 147 Summit St. to 36 Walnut St. D&D would occupy space in a building that formerly housed an auto repair business, according to city clerk Timothy Spanos. The council will also hold another hearing on an application by Mark Pesaturo to amend an existing special permit for the site of a former ice cream stand at 160 Lynn St. The existing permit allows for the sale of ice cream, soda, and candy. Spanos said Pesaturo would like to operate a business from the stand that would serve not only those products but also pizza slices and steamed hot dogs. The council will also hold a hearing on a special permit application from Valter Barcamonte for changes to his home at 20 Lincoln Road. Barcamonte wants to add a deck, rear family room, and farmer’s porch, and to expand his garage to hold two cars, Spanos said. The meeting will be held at 7:30 p.m. at City Hall.