Portola Valley · Licensed center
Carillon Preschool
At a glance
- Small developmental center, licensed for 29 children.
- Hours 9 a.m. to 12 p.m., 5 days a week, school year.
- Tuition Preschool $1,536 a month, half day. See costs
From their website, read July 2026:
“Each class has no more than 14 students accompanied by two teachers.”
What to know
The license is the range the state allows. It does not say which ages have openings.
What the state has found
The state cited rules at 1 of its 2 licensing inspections since June 2023.
See each inspection
Licensing inspections
Jul 7, 20251 citation
HSC 1597.16(a)(1)Type B
“(1) A licensed child day care center, as defined in Section 1596.76, that is located in a building that was constructed before January 1, 2010, shall have its drinking water tested for lead contamination levels on or after January 1, 2020, but no later than January 1, 2023, and every five years after the date of the initial test. This requirement is not met as evidenced by: Based on interview and record review, the licensee did not comply with the section cited above. Facility has not conducted lead testing of water fixtures, which poses/posed a potential health, safety or personal rights risk to persons in care.”
HSC 1597.16(a)(1)
- Jun 22, 2023Nothing cited
The state cited rules at 1 of this center's 2 inspections. Most Bay Area centers inspected twice had fewer: 64% of 362 had none cited.
How all 362 Bay Area centers inspected twice compare
Of the 362 Bay Area centers the state inspected twice, how many of those inspections cited a rule:
- None64%
- 1 of 232%This center
- Both4%
Read every record and the state’s reports
State record — California CDSS Community Care Licensing
- Last visit
- July 7, 2025
- On file
- 2 visits since June 2023 — 1 cited nothing
- Most serious
- Type B —
(1) A licensed child day care center, as defined in Section 1596.76, that is located in a building that was constructed before January 1, 2010, shall have its drinking water tested for lead contamination levels on or after January 1, 2020, but no later than January 1, 2023, and every five years after the date of the initial test. This requirement is not met as evidenced by: Based on interview and record review, the licensee did not comply with the section cited above. Facility has not conducted lead testing of water fixtures, which poses/posed a potential health, safety or personal rights risk to persons in care.
· July 7, 2025
California CDSS publishes the full investigation narrative for a complaint, including its disposition, and classifies a citation Type A — an immediate risk to a child — or Type B.
Jul 2025 Licensing visit 1 finding
Licensing visit · July 7, 2025
HSC 1597.16(a)(1) · Type B
(1) A licensed child day care center, as defined in Section 1596.76, that is located in a building that was constructed before January 1, 2010, shall have its drinking water tested for lead contamination levels on or after January 1, 2020, but no later than January 1, 2023, and every five years after the date of the initial test. This requirement is not met as evidenced by: Based on interview and record review, the licensee did not comply with the section cited above. Facility has not conducted lead testing of water fixtures, which poses/posed a potential health, safety or personal rights risk to persons in care.
Shortlist replaces people’s names in the state’s text with initials. This is done by rule, not by hand, so it can miss a name or shorten a word that isn’t one. The state’s report, linked on each row, has the original.
What it costs
$1,536 a month for a preschooler
Bay Area comparison hidden: this is a half-day price, and only full-time prices are compared.
- Half day (morning)
- $236 to $978 a month
- Application fee
- $100
- Siblings
- Offers a discount for siblings enrolled
A day here
9 a.m. to 12 p.m., 5 days a week, school year
Schedule
- Schedule
- Half-day
How they teach
Developmental and academic
“Our pedagogy is a blend of play and academics.”
Who cares for your child
Cara O'Connell (Director) since 2015.
10 years · Bay Area median 16, among 29 that publish
Details
- Phone
- (650) 529-1335
- Address
- 815 Portola Road, Portola Valley, 94028
- License
- 414001772
- Established
- 2004
We couldn’t find some information that may matter to your decision: openings, child care subsidies, a typical day, sick and biting policies, and who owns it. We can ask the program for you and copy you in.
Sources and dates
Where every fact on this page came from, and when Shortlist last checked it against that source. Anything Shortlist could not source is named here rather than left blank.
Children per adult
- Children per adult — Checked July 2026 carillonschool.org/about.html
How they teach
- Approach — Checked July 2026 carillonschool.org/…/carillon_preschool_admission_agreement_2026-2027.pdf
- Approach — Checked July 2026 carillonschool.org/about.html
Who cares for your child
What it costs
- Preschool, Second price — Checked July 2026 carillonschool.org/…/carillon_preschool_admission_agreement_2026-2027.pdf
- Application fee, Sibling discount — Checked July 2026 carillonschool.org/tuition.html
State record
From California CDSS Community Care Licensing’s published reports, last checked November 5, 2026.
A day here
- Hours — Checked July 2026 carillonschool.org/programs.html
- Calendar — Checked July 2026 carillonschool.org/…/2026-2027_final_carillon_school_application__3_.pdf
- Schedule — Checked July 2026 carillonschool.org/…/carillon_preschool_admission_agreement_2026-2027.pdf
Details
- Phone, Address, License — Checked July 2026 ccld.dss.ca.gov
- Website — Checked July 2026 carillonschool.org
- Ages they serve, Established — Checked July 2026 carillonschool.org/about.html
Small means the smallest quarter of Bay Area’s 439 licensed centers by state-licensed capacity: 8 to 30 children. Medium is 31 to 75; large is 76 to 312.