Cornerstone College is an independent, Lutheran, co-educational, secondary, day school, located at Mount Barker in the Adelaide Hills south-east of Adelaide, South Australia. The College is a non-selective school, currently catering for approximately 900 students from Years 7 to 12. Since 2014, the College has also catered for Year 7 students. Facilities include a library, a basketball court, gymnasium, a canteen, an oval and a theatre. The school has a tradition of naming new facilities in a foreign language, the canteen is called Cibo Bello (Italian for 'beautiful food'), the gym is called Inbarendi (aboriginal for 'meet one another'), the library is called Anakalypsi (Greek for 'discovery') and the arts building is called Atelier.The houses are Battunga (green), Naturi (yellow), Moorak