Charleston City Council gave final approval Tuesday of a zoning change that clears the way for a new 462-site residential development on Johns Island.

The vote allows for development of the property around River and Plow Ground roads for a mix of residential, retail, warehouse and commercial businesses near the Charleston Executive Airport. An assisted-living site also is planned.

Council supported the effort overwhelmingly after the Planning Commission voted against it by saying the 462-acre development was too big and intense for Johns Island to absorb.

Council members who backed the plan during the earlier first reading said the site would provide jobs on Johns Island.