Cornerstone Preschool
Cornerstone Preschool is a licensed child care center in Agoura Hills, CA, licensed for up to 90 children and serving preschool-age children. It has held its California license since 2005. Since February 2021, state licensing staff have inspected it 2 times. The state issued 1 citation, 0 of them Type A (the most serious). None came in the last 12 months. Measured by weighted citations per inspection, it is tied for #5 of 7 centers in Agoura Hills and has more citations per inspection than 46% of California licensed centers.
Inspection record
Every state visit
What inspectors cited most
Citations, newest first
Based on observation/interview, the licensee did not comply with the section cited above in the Child Care Center (CCC) has not had their water sources tested for lead contamination, which poses a potential health, safety or personal rights risk to persons in care.
About this center
Common questions
Does Cornerstone Preschool take infants?
Not under this license, which covers preschool-age children.
Has Cornerstone Preschool had any serious violations?
No Type A citations since 2021. It has 1 Type B citation, listed above.
How does Cornerstone Preschool compare with other daycares in Agoura Hills?
It is tied for #5 of 7 centers in Agoura Hills by weighted citations per inspection, and has more citations per inspection than 46% of California licensed centers with enough inspection history to compare.
When was Cornerstone Preschool last inspected?
Mar 26, 2026. No citations were issued during that visit.
How much does Cornerstone Preschool cost?
California does not publish individual centers’ prices, so ask Cornerstone Preschool for its current tuition. For comparison, the median full-time price at licensed centers in Los Angeles County, which includes Agoura Hills, was $1,087 a month for preschoolers (about $1,370 today) in the state’s 2021 Regional Market Rate Survey.
Who runs Cornerstone Preschool?
The licensee is Exploration Station INC., and the administrator listed with the state is Melisa Giuffrida.
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Citations are quoted from California Department of Social Services inspection and complaint reports. Type A citations are the state’s most serious category (an immediate risk to children’s health, safety or personal rights); Type B citations are a potential risk. A citation is a finding about one rule, not a judgment about a center overall. Complaint allegations appear here only when the state substantiated them.
To read the full state reports, search facility number 197412909 on the California Care Facility Search. Data refreshed Oct 2, 2026.