1877: A larger room was added to cater for growing demand.
1907: The old gallery (backless raised steps at rear of classroom) were replaced with long desks with backless seats.
1910: A shelter shed was built.
1911: A woodwork room was added to the shelter shed.
1911: School Committee came into being.
1912: Students travelling to school on a horse drawn cart.
1913: The school building was moved and re-erected at a new location. A dam was constructed on the school grounds.
1914: An additional classroom and accommodation were built.
March 24, 1937: First Mother’s Club meeting was held.
1967: Athletic Carnival for local school children started at Undera Recreation Reserve.
1988: The Undera School Residence was sold.
1996: Undera Kindergarten was established.
2008: Regional and State School Garden Award winner.
2015: Memorial wall commemorating the service of men and women from the district during World War I.
2017: New play and eating area.
2017: World War II Honour Roll added to the memorial wall.
2017: New entrance to the West Wing of the school, including entrance ramp steps, automatic doors, painting and refurbishment of the senior classroom.
2021: New playground installed.
2023: Fitness bike track around the oval.
2026: Dam filled in and school celebrates 150 years of education.