Marin Day Schools - Old Mills Campus
Marin Day Schools - Old Mills Campus is a licensed child care center in Mill Valley, CA, licensed for up to 20 children and serving school-age children. It has held its California license since 2003. Since February 2021, state licensing staff have inspected it 3 times. No visit in that period produced a citation, which puts it among the 34% of ranked California centers with no citations. Measured by weighted citations per inspection, it is tied for #1 of 17 centers in Mill Valley and is tied for the best record statewide (no citations).
Inspection record
Every state visit
Citations, newest first
About this center
Common questions
Does Marin Day Schools - Old Mills Campus take infants?
Not under this license, which covers school-age children.
Has Marin Day Schools - Old Mills Campus had any serious violations?
No Type A citations since 2021.
How does Marin Day Schools - Old Mills Campus compare with other daycares in Mill Valley?
It is tied for #1 of 17 centers in Mill Valley by weighted citations per inspection, and is tied for the best record statewide (no citations).
When was Marin Day Schools - Old Mills Campus last inspected?
Dec 4, 2025. No citations were issued during that visit.
How much does Marin Day Schools - Old Mills Campus cost?
California does not publish individual centers’ prices, so ask Marin Day Schools - Old Mills Campus for its current tuition. For comparison, the median full-time price at licensed centers in Marin County, which includes Mill Valley, was $777 a month for school-age children (about $980 today) in the state’s 2021 Regional Market Rate Survey.
Who runs Marin Day Schools - Old Mills Campus?
The licensee is Bright Horizons Children's Centers, LLC, and the administrator listed with the state is Elizabeth Conroy.
Licensed centers nearby
322 Throckmorton, Mill Valley · under 0.1 mi away · 21 spotsNo citationsMarin Day School - Mill Valley Preschool
10 Old Mill Street, Mill Valley · under 0.1 mi away · 60 spotsMore citations than mostOld Firehouse School Mill Valley-preschool
10 Olive Street, Mill Valley · 0.1 mi away · 40 spotsNo citationsMarin Horizon School- Toddler Bldg.
247 Miller Avenue, Mill Valley · 0.8 mi away · 18 spotsAbout typicalGuidepost Montessori At Mill Valley
270 Miller Ave, Mill Valley · 0.8 mi away · 25 spotsAbout typicalGuidepost Montessori At Mill Valley (Inf)
270 Miller Ave, Mill Valley · 0.8 mi away · 21 spotsMore citations than most
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 213005257 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.