A major East Lawrence project that would redevelop the area near Eighth and Pennsylvania streets received another round of approval from city commissioners Tuesday night.

Commissioners unanimously approved a pair of zoning ordinances for an area that Lawrence builder Bo Harris wants to convert into a residential, retail and commercial district.

The project, which would rehabilitate several old industrial buildings in the area, previously sparked concerns from neighbors about density, parking and other issues. But no one from the public spoke against the issue at Tuesday’s meeting.

Questions still remain about the project, though. It will include about $2.8 million worth of public improvements, such as the extension of Delaware Street from Ninth Street to Eighth Street. But the city has not agreed to pay for any of those costs.

Instead, commissioners have supported using the Neighborhood Revitalization Act, which would allow the builder to receive a partial property tax rebate that then could be used to pay for the public improvements.

In order for the Neighborhood Revitalization Act to generate enough to cover the $2.8 million cost, Douglas County and the Lawrence school district also likely would need to participate in the rebate program.

Harris said there was no firm time line for the approximately $30 million project to start.