Higher impact fees on developments could bring in more than $300 million for city projects through the year 2040, a consultant told City Council on June 21.

Impact fees are intended to offset the increased costs the city pays to support new developments with services like policing or infrastructure like roads and sidewalks. The city has not revised its impact fees since 2008 and officials say they are generally far lower than in neighboring cities.

The council approved a revision study last fall. Consultant Bill Ross’s first report estimates that, at maximum rates, the city could collect $306 million in impact fees, which could be applied to an estimated $700 million in various pending city projects. In some categories, it could include $120 million for parks and recreation, $50 million for paths and sidewalks, and $72 million for roads.

On June 21, the council authorized Ross to write up a new impact fee structure. It would also require state and Atlanta Regional Commission review before being approved by the City Council, possibly in September, and becoming part of the city’s Comprehensive Plan.