The proposed development would create 300 jobs.
Plans are being lodged for a new €50m holiday park in the midlands.
The Newcastle House Hotel in Ballymahon is looking to turn the period house and 44 acre estate into a family-friendly destination.
The proposed development would create up to 300 jobs and accommodate hundreds of families to explore and camp on the historic grounds.
Managing Co-Ordinator, Martha O'Brien says they want to turn Newcastle Estate into the entertainment capital of Ireland: