This week’s properties are on Riverside Drive, in Chelsea and in the South Bronx.

A two-bedroom, two-bath, roughly 1,000-square-foot duplex with an updated windowed kitchen, a dining area, a bedroom or sitting room, French doors and a half bath on the lower level; a living room, a bedroom and a full bath on the upper level; plus built-ins, a wine fridge, ample storage, mini-split heating and air-conditioning, a washer/dryer and a 500-square-foot roof deck, on the top floors of a 19th-century five-story walk-up with a super, bike storage and basement storage rooms. Kirk Eckenrode and Trevor Connolly, 570-419-6295, Elegran | Forbes Global Properties;