Plans for a caravan storage site on agricultural land have been recommended for refusal by planners.
Up to 642 mobile homes would be stored off Ashton Lane in Braithwell under the proposals.
Doncaster councillors Martin Greenhalgh and Nigel Cannings argued there was high demand for the facility.
But council planning officers said the site was green belt land and the planning application should be turned down at a meeting on Tuesday.
