Emerald Tower Ltd is seeking permission to erect a 27 meter telecommunications mast in Co Monaghan.
It would involve the removal of the existing 15 meter structure from the site in Elvey, Emyvale, to be replaced with a new 27 metre high mast.
The planning application says the current mast is "operationally inadequate" as it is "too low and light".
The application adds that the new structure would "substantially improve" the "poor coverage" in the area and would "make a significant positive contribution" to the greater Elvey area.