East Dunbartonshire Council says Glasgow is consulting on plans to build on greenbelt near its boundary.
But the city council insists it does not have any plans to release any new sites for housebuilding.
Last year, Glasgow consulted on a proposal to release sites at Summerston and Robroyston for new developments.
East Dunbartonshire opposed the move saying there should be no further encroachment into greenbelt land at either location.
The council says Glasgow is now consulting on further plans for greenbelt land nearby.
Alan Moir, East Dunbartonshire development and regeneration committee convener, said: "Protecting the greenbelt in and around East Dunbartonshire has always been a priority for this council and we promote strongly the use of brownfield sites first and foremost for development.
"We believe the supply of brownfield sites in Glasgow has not been exhausted and therefore the release of greenbelt instead cannot be justified."
However, Glasgow insists it has not made any plans to release any sites for development.
The Scottish Government requires councils to have a generous supply of land to meet their housing needs.
As a result, Glasgow has been examining its greenbelt to assess whether there are any areas with development potential.
As part of the process, it launched a consultation to ensure the public and other interested parties could make their views known.
A spokesman said: "We have not made any proposals to release greenbelt sites.
"We carried out a review of sites with development potential, as we are required to do, which feeds into our Local Development Plan.
"That plan is still a work in progress. However, if it were eventually to recommend any changes - whether that means adding to the green belt or releasing a site - it will still have to go through public consultation and our own committee process."
The up-to date development plan for Glasgow will eventually replace the current planning blueprint for the area.
Part of the project involves reviewing the city's greenbelt boundaries with the aim of ensuring new developments are directed to the most appropriate locations and to identify new greenbelt areas.
A city council spokesman said: "The council recently completed a review of the city's green belt and an open public consultation.
"Officers are now using that information within the preparation of a new Local Development Plan.
"Once that citywide plan has been drafted, a committee will be asked to approve it for its own public consultation and there will be another opportunity to for anyone with an interest in a wide range of development issues, to get involved."