Landlords add amenities to keep tenants

Landlords are starting to offer more amenities to keep tenants in their rental buildings. Manhattan Skyline Management is putting in a concierge service in all of its buildings. At the Octagon on Roosevelt Island, owned by developer Bruce Becker, residents are now being offered discounts at the on-site day care center, which is also being renovated. Water taxis are also in the works for the development. “We want to keep the buildings full and we want to be prudent,” Becker said.