The phrase "school premises" refers to the area or land that belongs to a school. It includes all the buildings, playgrounds, and facilities that are part of the school's property. Full definition
Schools should prohibit use of tobacco on school premises by students, staff members, and the general public. (ascd.org)
Opening up school premises for public use can create better engagement between schools and their communities, provide greater commitment to the schools from local residents and create additional funding. (educationbusinessuk.net)
Maintained a safe and healthy environment for children — Held responsibility of child safety while in school premises. (job-interview-site.com)