Developers expect to break ground on a three-story, 13-unit townhouse complex on Lennington Street in the next month. Construction on Riverview Manor is expected to take 18 months or less. The current structure, commonly referred to as the Lennington Tea House and located at the end of Lennington Street, will be demolished.

The Planning Board Tuesday night gave approval for a minor variance for front/side yard setback, though the main hold-up to construction had been the state Department of Environmental Protection’s waterfront development permit. The state required a public access of some kind to the Rahway River, so there will be a 30-foot public easement and several public parking spaces. Public access will be contiguous from this property to a proposed Sleep Inn (.pdf) motel across the street.

Each two-bedroom unit will have a one-car garage and one parking space and is expected to be on the market in the $400,000 range. The homes will be some 40 feet from the Rahway River and two feet above — and out of — the flood zone, according to Dave Miele of GMM Associates.

GMM Associates also has constructed four new homes and rehabilitated a third, three-family home on Sterling Place (between Brookfield Place and East Hazelwood Avenue) and rehabilitated another on Main Street.