Cornerstone Montessori Prep School
33 Mallard Road, Toronto, Ontario, M3B 1S4
- PS to Gr. 12
- Co-ed
This school has closed
Government records list this school as closed in the 2020-21 school year. The details below are kept for reference only.
See the official list of closed schoolsAt a glance
Accreditations & Memberships
Memberships
Not yet verified
How are these calculated? →The school has not yet verified its ranking metrics or tuition with MapleRank. These become available once the school confirms its data:
- · University matriculation rate
- · Average IB score
- · National diversity index
- · Faculty subject expertise
- · Student–teacher ratio
- · Tuition and fees
Area Safety Information
Sourced regional public crime data alongside the school's own context. Not a MapleRank rating — does not affect rankings.
The Toronto, Ontario CMA's 2024 Crime Severity Index is 59.4, 19 points below the national figure of 77.9 (index where 100 = Canada 2006).
Crime Severity Index
Local police-service area
Cornerstone Montessori Prep School's response
Campus safety context
This school has not yet responded.
We invite the school to share its campus security measures and any context it would like families to know.
A school administrator can add a response from the school dashboard.
Location accessibility
ExcellentTuition & Fees
2026-27
Included
- hot lunch
Other
- Casa full day, CWELCC rate
- application $400 first child/$150 sibling
- annual administration $150
- Casa administration/workshop $500 plus books
- page lists both administration charges
2026-27
Included
- hot lunch
Other
- not differentiated
- application $400 first child/$150 sibling
- annual administration $150
- administration/workshops $970 elementary/$1020 secondary plus books
- page lists both administration charges
- ESL/special education support $950/month if required
- optional afterschool club $290/month
Get Your Personalized Canadian Private School Shortlist in Minutes
Upload your transcript, predicted grades, English test scores (IELTS, Duolingo, TOEFL, etc.), budget, and preferences in under 60 seconds.
Your secure profile is instantly matched against every Canadian private school's verified data. As soon as the first schools submit their university placement results, IB scores, and faculty details, you'll receive a ranked shortlist of the schools that are the best academic, cultural, and financial fit — complete with plain-English explanations of why each one matches.
Matching is not active yet — we're waiting for the first wave of schools to submit their data. You'll be among the very first families notified the moment personalized recommendations go live.