Montessori Harbor Mesa School · School-Age Program, Costa Mesa
Montessori Harbor Mesa School was a licensed child care center in Costa Mesa, CA, licensed for up to 15 children. Its license closed around December 2021. Since February 2021, the state inspected it 0 times and investigated 1 complaint, 1 substantiated, and issued 3 citations, 2 of them Type A. Its inspection history is kept here for reference.
Inspection history
Every state visit
What inspectors cited most
Citations, newest first
Based on the interviews with staff, parents, and children,and the physical plant inspections, 1 The LPA discussed a correction for this violation with owner/director. They stated they will email the LPA a detailed plan for how supervision of children will be maintained by staff at the facility at all times. This plan will be emailed to LPA by 10/5/21. Title 22 regulation section related to this violation was provided and reviewed. LPA has determined that children were not supervised correctly on the date 8/3/21 at approximately 1pm on the outdoor play yard, which led to an innappropriate interaction between 3 children. This is an immediate threat to the children's health and safety.
Based on LPAs observation of the classroom and census taken, it was determined that one teacher was supervising 15 school age children. This was observed to occur during the inspection by LPA on the morning of 10/5. 1 The LPA discussed a correction for this violation with owner/director. They stated they will email the LPA a detailed plan for how supervision of children and teacher to child ratio will be maintained by staff at the facility at all times. This plan will be emailed to LPA by 10/5/21. Title 22 regulation section related to this violation was provided and reviewed. This is an immediate threat to the health and safety of the children in care.
Based on the interviews with staff, parents, and children,and the physical plant inspection, 1 The LPA discussed a correction for this violation with owner/director. They stated they will email the LPA a detailed plan for how supervision of children will be maintained by staff at the facility at all times. This plan will be emailed to LPA by 10/12/21. LPA has determined that children were not supervised correctly on the date 8/3/21 at approximately 1pm on the outdoor play yard, which led to an innappropriate interaction between 3 children. It was further determined that a staff #4 was performing house keeping duties at that time. This is a potential threat to the children's health and safety.
Complaint investigations
Lack of Supervision
About this center
Other licenses at this address
Licensed centers nearby
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3155 Killybrooke Lane, Costa Mesa · 0.5 mi away · 24 spotsNo citations
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 304371432 on the California Care Facility Search. Data refreshed Oct 3, 2026.
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