Diablo Valley Montessori School
Diablo Valley Montessori School is a licensed child care center in Lafayette, CA, licensed for up to 138 children and serving preschool-age children. It has held its California license since 1986. Since February 2021, state licensing staff have inspected it 4 times and investigated 2 complaints, 0 of them substantiated. The state issued 3 citations, 1 of them Type A (the most serious). None of them came in the last 12 months. Measured by weighted citations per inspection, it is #18 of 22 centers in Lafayette and has more citations per inspection than 68% of California licensed centers.
Inspection record
Every state visit
What inspectors cited most
Citations, newest first
Based on interviews and record review, the licensee did not comply with the section cited above in when C1 was pulling away from S1 his elbow was dislocated which poses/posed a immediate health, safety or personal rights risk to persons in care. 8 Failure to correct will result in a $100 per day civil penalty until corrected. Repeat violations are $250 per violation and $100 per day until corrected.
Based on interview and record review the school was notified 2/12/25 that C1 recieved medical treatment but did not inform licensing until 2/18/25, which poses a potential health and safety risk to children in care. 8 Failure to correct will result in a $100 per day civil penalty until corrected. Repeat violations are $250 per violation and $100 per day until corrected.
Based on Lead Testing Sample results the facility has one outdoor water fountain with lead exposure. Director stated children used it for drinking water until March 2020 and not been used since then. Since children were exposed to water with lead, this posed a potential risk to Health and Safety.
Complaint investigations
How often are complaints about daycares in Contra Costa County substantiated? See the county-by-county report →
About this center
Common questions
Does Diablo Valley Montessori School take infants?
Not under this license, which covers preschool-age children.
Has Diablo Valley Montessori School had any serious violations?
California issued 1 Type A citation since 2021, its most serious category. The most recent was on May 14, 2025, for personal rights. Each citation is listed in full above.
Have there been complaints about Diablo Valley Montessori School?
California investigated 2 complaints since 2021 and substantiated 0. Allegations are shown only for substantiated complaints.
How does Diablo Valley Montessori School compare with other daycares in Lafayette?
It is #18 of 22 centers in Lafayette by weighted citations per inspection, and has more citations per inspection than 68% of California licensed centers with enough inspection history to compare.
When was Diablo Valley Montessori School last inspected?
Oct 8, 2025. No citations were issued during that visit.
How much does Diablo Valley Montessori School cost?
California does not publish individual centers’ prices, so ask Diablo Valley Montessori School for its current tuition. For comparison, the median full-time price at licensed centers in Contra Costa County, which includes Lafayette, was $1,287 a month for preschoolers (about $1,620 today) in the state’s 2021 Regional Market Rate Survey.
Who runs Diablo Valley Montessori School?
The licensee is Diablo Valley Montessori School, INC., and the administrator listed with the state is Jayne Martin.
Licensed centers nearby
3408 Deerhill Road, Lafayette · under 0.1 mi away · 40 spots More citations than most Child Day School, LLC - Lafayette
1049 Stuart Street, Lafayette · 0.2 mi away · 15 spots No citations Child Day School, LLC - Lafayette
1049 Stuart Street, Lafayette · 0.2 mi away · 83 spots About typical Building Bridges Preschool
1003 Carol Lane, Lafayette · 0.5 mi away · 37 spots About typical Lafayette Nursery School
979 First Street, Lafayette · 0.6 mi away · 25 spots About typical Pillar Kids Childcare
3538 Golden Gate Way, Lafayette · 0.6 mi away · 24 spots No 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 070208839 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.