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Grantham Preparatory International School
Gorse Lane, Grantham, NG31 7UF
Independent school for ages 3–11 in Grantham. Mixed intake.
Grantham Preparatory International School is a non-selective independent school in Grantham, Lincolnshire, for boys and girls aged 3 to 11. It has nursery classes. An ISI inspection in March 2026 found standards and safeguarding standards met.
The school describes itself as a non-denominational independent day school and says it belongs to International Education Systems, with sister schools in several countries. It also highlights a family environment, traditional teaching methods and individual attention across abilities.
Ages 3–11 · Primary age
108 pupils · On roll
Independent school · Mixed