Set amid landscaped gardens overlooking the Firth of Clyde, the Rosslea Hall Country House Hotel was built in 1849 and is located within three miles of Helensburgh centre. Glasgow Airport is situated 17 miles from the hotel, an approximate driving time of 35 minutes. Hotel Features. Wireless Internet access is available throughout the hotel, and the function suite accommodates up to 120 guests. The hotel also houses its own bar, while practical amenities include complimentary parking, room service and dry cleaning facilities.