Plans have been lodged for a two-storey service station off the N83 at Knockdoe.
The project is led by Castlegar Developments Ltd and county planners are now assessing the plans.
This would be a major development on the left side of the N83 heading towards Tuam, representing a multi-million euro investment.
The entrance would be just before Knockdoe Junction, close to the old Newell's filling station and shop.
It'd offer six regular pumps, two separate HGV pumps, a retail shop, and a food court with three outlets.
Included in those food plans are a drive-thru, as well as outside terraced seating and additional seating on a second floor.
There'd be parking for 80 cars, HGV and coach parking, and 36 covered bicycle spaces - as well as a new pedestrian and cycle route through the site to connect to the local bus stop.
County planners will make a decision in September.