Daycare Record Child care inspection records

California Montessori School

480 N. San Anselmo Avenue, San Bruno, CA 94066 · San Mateo County
Child care center (preschool)

California Montessori School is a licensed child care center in San Bruno, CA, licensed for up to 38 children and serving preschool-age children. It has held its California license since 1979. Since February 2021, state licensing staff have inspected it 3 times and investigated 3 complaints, 0 of them substantiated. The state issued 3 citations, 1 of them Type A (the most serious). 1 citation came in the last 12 months. Measured by weighted citations per inspection, it is #11 of 14 centers in San Bruno and has more citations per inspection than 76% of California licensed centers.

Inspection record

More citations than 76% of 10,948 California licensed centers, per inspection, weighted by severity. More citations than most
#11 of 14 centers in San Bruno
1 Type A citations
2 Type B citations
3 Inspections
0 of 3 Complaints substantiated
3 citations from 6 state visits since Feb 8, 2021 · 1 in the last 12 months · last inspected May 6, 2026

Every state visit

2022 2023 2024 2025 2026 INSPECTIONS (top) · REPORTS & INVESTIGATIONS (bottom) Jul 14, 2026 · Report/investigation · no citation Jul 14, 2026 · Report/investigation · citation found May 6, 2026 · Inspection · no citation Jan 17, 2025 · Inspection · no citation Jun 19, 2023 · Inspection · citation found Apr 13, 2022 · Report/investigation · no citation
Citation issued No citation Top row: inspections · bottom row: complaint investigations and other visits

What inspectors cited most

Staff ratios 1
Background checks 1
Training & qualifications 1

Citations, newest first

Type B Jul 14, 2026 Complaint investigation Staff ratios
Teacher-Child Ratio §101263.3(b)
Based on observation, interview, and record review, the facility did not comply with the section cited above during the staff breaks as there are two fully qualified teachers and one aide with no ECE units present supervising 25 children. During today's visit, LPA also observed 2 qualified teachers with 25 children in the outdoor area, while the aide is inside the facility prepping and cleaning. This poses a potential health, safety or personal rights risk to persons in care. 8 Additionally, the director states that the owner will also try to step in and LPA also sugested going through a staffing agency. Documentation will send proof by set due dates.
Plan of correction due Jul 31, 2026
Type A Jun 19, 2023 Inspection Background checks
Criminal record clearance §101170(e)(1)
Based on observation, interview and record review, S3 (whom was present during LPA's visit), did not have fingerprint clearance prior to working with the children on site, which poses an immediate health, safety or personal rights risk to persons in care.
Plan of correction due Jun 20, 2023
Type B Jun 19, 2023 Inspection Training & qualifications
Teacher qualifications and duties §101216.1(b)(1)
Based on observation, interview and record review, the licensee did not comply with the section cited above due to S1, S2, and S3 not having the required early childhood education (ECE)/child development units to be a teacher which poses a potential health, safety or personal rights risk to children in care.
Plan of correction due Jul 19, 2023

Complaint investigations

Not substantiated Jul 14, 2026 Complaint investigation received May 4, 2026
The state did not substantiate this complaint, so its allegations are not shown.
Not substantiated Jul 14, 2026 Complaint investigation received May 8, 2026
The state did not substantiate this complaint, so its allegations are not shown.
1 citation issued during this investigation, listed under Citations.
Not substantiated Apr 13, 2022 Complaint investigation received Jan 27, 2022
The state did not substantiate this complaint, so its allegations are not shown.

How often are complaints about daycares in San Mateo County substantiated? See the county-by-county report →

About this center

Licensed capacity 38 children
License type Child care center (preschool)
License status Licensed
Licensed since Dec 1, 1979
Licensee Harjit K. Dhillon
Administrator Harjit K. Dhillon
Phone (650) 589-2237
State facility # 410503229
Parent reviews Google Maps reviews
Not checked by Daycare Record

Common questions

Does California Montessori School take infants?

Not under this license, which covers preschool-age children.

Has California Montessori School had any serious violations?

California issued 1 Type A citation since 2021, its most serious category. The most recent was on Jun 19, 2023, for criminal record clearance. Each citation is listed in full above.

Have there been complaints about California Montessori School?

California investigated 3 complaints since 2021 and substantiated 0. Allegations are shown only for substantiated complaints.

How does California Montessori School compare with other daycares in San Bruno?

It is #11 of 14 centers in San Bruno by weighted citations per inspection, and has more citations per inspection than 76% of California licensed centers with enough inspection history to compare.

When was California Montessori School last inspected?

May 6, 2026. No citations were issued during that visit.

How much does California Montessori School cost?

California does not publish individual centers’ prices, so ask California Montessori School for its current tuition. For comparison, the median full-time price at licensed centers in San Mateo County, which includes San Bruno, was $1,619 a month for preschoolers (about $2,040 today) in the state’s 2021 Regional Market Rate Survey.

Who runs California Montessori School?

The licensee is Harjit K. Dhillon, and the administrator listed with the state is Harjit K. Dhillon.

Licensed centers nearby

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 410503229 on the California Care Facility Search. Data refreshed Oct 3, 2026.

Comparing centers? See how to choose a daycare: 30 questions to ask and a printable checklist.