The Rockland City Council unanimously and without comment Monday night gave preliminary approval to a zone change that could bring in businesses.

City officials have previously acknowledged that they have had discussions with potential developers but have not identified those parties at their requests.

The proposed ordinance amendment would allow manufacturing on parcels that front New County Road. Interior boat storage and repair would also be allowed on the New County Road parcels.

There are two commercial properties that abut each other on New County Road, including the former Bonnar-Vawter property. That property at 20 New County Road is owned by Restoration Associates II and consists of nearly five acres and a 57,000-square-foot building. Adjacent to that property are five acres with a nearly 60,000-square-foot building owned by Lewis Family Properties Partnership Ltd. That property had housed Lewis Marine.

In addition to allowing manufacturing in Commercial 1 zones through a conditional use process that would require the Rockland Planning Board’s review, the zone change proposal would allow craftsman’s offices and health and fitness facilities in Commercial 1 zones.

A formal public hearing and final vote will be held Wednesday, Feb. 10. The council’s regular monthly meeting in February has been rescheduled to a Wednesday because the council chambers will be used as the polling place for the Feb. 9 referendum on whether to close the MacDougal School.