Unincorporated King County · Licensed center
Montessori Children's House
At a glance
- Large Montessori center, licensed for 174 children.
- Hours 8 a.m. to 6 p.m.
- Tuition Infant $2,700, toddler $2,600, preschool $2,550 a month, full time. See costs
From their website, read September 2026:
“Along with our low 1:3 ratio, this emphasis on individual care allows the Infant community staff to follow each baby’s own rhythms for sleeping, eating, and activity.”
The state’s rule
Washington sets the most children one adult may care for by age, and the largest group size, in WAC 110-300-0356(5).
Infants (birth through 11 months): one adult for every four.
Toddlers (12 through 29 months): one adult for every seven.
Preschoolers (30 months through 6 years, not in kindergarten): one adult for every ten.
School-age children: one adult for every fifteen.
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 2 of its 3 licensing inspections since January 2024. It lists no valid complaint about this center.
See each inspection
Licensing inspections
- Mar 4, 2026Nothing cited
Jan 23, 20251 citation
MedicationSerious. Fix within 5 business days. The licensor rechecks within 10.
“Two children in the "Nootka Rose" room have epi pens without prescription label.”
WAC 110-300-0215(3)(a)(i)
Jan 4, 20244 citations
Safety requirementsSerious. Fix within 5 business days. The licensor rechecks within 10.
“Plastic bags were observed to be easily accessible to children in the first classroom.”
WAC 110-300-0165(2)(d)
Storage of hazardous and maintenance suppliesSerious. Fix within 5 business days. The licensor rechecks within 10.
“A container with pink liquid sanitation labeled "keep out of reach of children" was observed in one classroom. 110-300-0260(5) - A toilet plunger was observed in one bathroom accessible to children.”
WAC 110-300-0260(5)
Training requirementsSerious. Fix within 5 business days. The licensor rechecks within 10.
“It was observed that some teachers did not complete the required food handler training or had expired food handler cards.”
WAC 110-300-0106(12)
MedicationSerious. Fix within 5 business days. The licensor rechecks within 10.
“Expired prescription medications, EpiPens, were observed in thefacility.”
WAC 110-300-0215(3)(a)(i)
The state cited rules at 2 of this center's 3 inspections. Seattle-area centers inspected 3 times split about evenly: about a third had fewer, a third the same, and a third more (364 centers).
How all 364 Seattle-area centers inspected 3 times compare
Of the 364 Seattle-area centers the state inspected 3 times, how many of those inspections cited a rule:
- None12%
- 1 of 321%
- 2 of 335%This center
- All 333%
Read every record and the state’s reports
State record — Washington DCYF
- Last visit
- March 4, 2026
- On file
- 3 visits since January 2024 — 1 cited nothing
- Most serious
- Serious —
Two children in the "Nootka Rose" room have epi pens without prescription label.
· January 23, 2025
Washington DCYF publishes each citation in the licensor’s own words, with a risk level.
Jan 2025 Licensing visit 1 finding
Licensing visit · January 23, 2025
WAC 110-300-0215(3)(a)(i) · Serious
Two children in the "Nootka Rose" room have epi pens without prescription label.
Jan 2024 Licensing visit 4 findings
Licensing visit · January 4, 2024
WAC 110-300-0165(2)(d) · Serious
Plastic bags were observed to be easily accessible to children in the first classroom.
Storage of hazardous and maintenance supplies
WAC 110-300-0260(5) · Serious
110-300-0260(1)(d) - A container with pink liquid sanitation labeled "keep out of reach of children" was observed in one classroom. 110-300-0260(5) - A toilet plunger was observed in one bathroom accessible to children.
WAC 110-300-0106(12) · Serious
It was observed that some teachers did not complete the required food handler training or had expired food handler cards.
WAC 110-300-0215(3)(a)(i) · Serious
Expired prescription medications, EpiPens, were observed in thefacility.
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
Montessori Children's HouseMost Seattle-area prices (middle 80%)
Monthly, full time. The band is the middle 80% of Seattle-area full-time prices for that age; 56 infant, 82 toddler and 113 preschool programs publish one.
- Half day (morning)
- $1,775 to $1,800 a month
- Deposit
- $1,500, refundable
A day here
8 a.m. to 6 p.m.
Schedule and closed
- Schedule
- Half-day, full-day, extended-day
- Closed
- 10 holidays and breaks a year
Dates
Closed with no childcare: Labor Day, Veteran’s Day, Thanksgiving Break (Nov 25-27), Winter Break (Dec 24-31 and Jan 1), Martin Luther King Jr. Day, President’s Day, Spring Break (Apr 12-16), Memorial Day, Juneteenth, Independence Day (observed); plus several in-service days
How they teach
Montessori
“Committed to an excellent holistic Montessori education that includes the partnership and involvement of families within our community”
What staff are paid
- Float Assistant Teacher
- $21 to $25 an hourJob posting, seen October 2026
- Infant / Toddler Lead Teacher
- $50,000 to $80,000 a yearJob posting, seen October 2026
- Early Childhood Lead Teacher
- $45,000 to $70,000 a yearJob posting, seen October 2026
Details
- Phone
- (425) 868-7805
- Address
- 5003 218th Ave NE, Unincorporated King County, 98053
- License
- PL-6500
- Established
- 1987
We couldn’t find some information that may matter to your decision: openings, Working Connections subsidy, 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 September 2026 mchkids.com
How they teach
- Approach — Checked October 2026 mchkids.com
What it costs
- Infant, Toddler, Preschool, Second price, Deposit — Checked September 2026 mchkids.com
What staff are paid
- Float Assistant Teacher, Infant / Toddler Lead Teacher, Early Childhood Lead Teacher — Checked October 2026 mchkids.com
State record
From Washington DCYF’s published reports, last checked November 3, 2026.
Washington’s four risk levels, highest first: Immediate, Serious, Short Term, Long Term. Deadlines from DCYF procedure PRO 10.1.21.
Ages
A day here
- Hours — Checked September 2026 mchkids.com
- Schedule — Checked September 2026 mchkids.com
- Closed — Checked September 2026 mchkids.com/…/MCH-Calendar-2026-2027-6.pdf
Details
- Phone — Checked April 2026 mchkids.com
- Website — Checked July 2026 mchkids.com
- Address — Checked June 2026 data.wa.gov
- License — Checked April 2026 findchildcarewa.org
- Ages on the license — Checked September 2026 findchildcarewa.org
- Ages they serve — Checked September 2026 mchkids.com
- Established — Checked September 2026 mchkids.com
Large means the biggest quarter of Seattle-area’s 855 licensed centers by state-licensed capacity: 116 to 323 children. Small is 6 to 40; medium is 41 to 115.
The ages on the license are what the state licenses it to care for, which can be wider than the ages it takes.