
Grantham, Lincolnshire · NG31 7UF
Grantham Preparatory International School is a small, coeducational day prep serving ages 3–11 in Lincolnshire. Part of the IES International group, it emphasises academic success within a caring, family-oriented setting, with small class sizes and skilled teaching staff. The school prepares pupils for entry to independent and selective state grammar schools, offering a broad curriculum spanning core academics, music, drama, and sport.
Who thrives here
Pupils who benefit from smaller cohorts and close pastoral relationships; families seeking disciplined academic preparation for selective secondary entry without boarding.
Percentiles within UK independent + grammar schools we track.
Gorse Lane
Grantham, Lincolnshire
NG31 7UF
Nearest stations
Day fees at Grantham Preparatory International School are approximately £11,400 per year (2025/26).
Grantham Preparatory International School admits pupils at 3+, 4+, 7+, 8+, 11+. Entry is assessed by Assessment Day, Interview. See the Admissions section above for open days and key dates.
Grantham Preparatory International School is a day school in Grantham and does not offer boarding.
ISI rated Grantham Preparatory International School “Excellent” (2023).
Frequently praised
✓Small class sizes and individualised attention
✓Caring, family-centred ethos
✓Effective academic preparation for competitive secondary entry
✓Broad curriculum including music, drama, and sport
Common concerns
!School not yet inspected by Ofsted; no independent validation of standards
!Day-only provision; no boarding or international student programme despite 'International' branding
!Limited publicly available information on exam results, destinations, and pastoral systems