Challenge School San Carlos

1225 Greenwood Avenue, San Carlos, CA 94070 · San Mateo County

Child care center (single license, multiple age groups)

Challenge School San Carlos is a licensed child care center in San Carlos, CA, licensed for up to 60 children and serving children in more than one age group. It has held its California license since 2025. No visit in that period produced a citation, which puts it among the 34% of ranked California centers with no citations. It has too few inspections so far for a statewide comparison.

Inspection record

Not enough historyCalifornia has inspected this center 0 times since Feb 8, 2021. Centers are compared once they have at least 2 inspections.

0Type A citations

0Type B citations

0Inspections

0 of 0Complaints substantiated

0 citations from 1 state visit since Feb 8, 2021 · 0 in the last 12 months · last inspected —

Every state visit

Citation issuedNo citationTop row: inspections · bottom row: complaint investigations and other visits

Citations, newest first

No citations in this period.

About this center

Licensed capacity60 children

License typeChild care center (single license, multiple age groups)

License statusLicensed

Licensed sinceJul 17, 2025

LicenseeChallenge School

AdministratorSally Chang

Phone(650) 592-6878

State facility #414005222

Other licenses at this address

Happy Campers Preschool Daycare, INC.
Child care center (single license, multiple age groups) · ClosedToo few inspections to compare

Common questions

Has Challenge School San Carlos had any serious violations?

No Type A citations since 2021.

How much does Challenge School San Carlos cost?

California does not publish individual centers’ prices, so ask Challenge School San Carlos for its current tuition. For comparison, the median full-time price at licensed centers in San Mateo County, which includes San Carlos, was $1,947 a month for infants (about $2,460 today), $1,619 a month for preschoolers (about $2,040 today) and $730 a month for school-age children (about $920 today) in the state’s 2021 Regional Market Rate Survey.

Who runs Challenge School San Carlos?

The licensee is Challenge School, and the administrator listed with the state is Sally Chang.

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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 414005222 on the California Care Facility Search. Data refreshed Oct 2, 2026.