An empty lot on 1.78 acres that is part of Science Park straddling the city’s Dixwell and Newhallville neighborhoods is slated to become a five-story apartment building with 176 apartments — 58 classified as “affordable” — and 88 parking spaces. The project along the Farmington Canal Heritage Trail has been bouncing around City Hall for a few years. It can move forward following the unanimous approval of the full Board of Alders, which approved the zoning ordinance text and map amendment after the joint Community Development and Legislation Committee did so in December. The developer is RJ Development & Advisors LLC, which is controlled by developer Yves-Georges Joseph and Jason Rudnick. The alders more than a year ago approved a development and land disposition agreement to sell the property to RJ for $500,000. It also agreed to provide tax incentives, agreeing to limit taxes to $400 on each affordable unit for 20 years, with the rest of the complex being taxed at market rates.