Blue Mountains Grammar School is situated in Wentworth Falls (via Matcham Avenue) overlooking the Wentworth Falls Lake.

The Junior and Senior Campuses (Transition to Year 12) together cover 31 acres, and are five minutes walk from the Wentworth Falls village.

Our Preparatory Campus is located in Tusculum Road, Valley Heights (near Springwood). The site is 3 acres, it caters for students from Transition to Year 4.