Mercer Island · Licensed center
Early World Montessori
At a glance
- Medium Montessori center, licensed for 80 children.
- Hours 7 a.m. to 6 p.m., 5 days a week.
What to know
The license is the range the state allows. It does not say which ages have openings.
What the state has found
Someone reported a concern to the state, and in July 2024 the state found it valid and cited 1 rule. The state also cited rules at 3 of its 4 licensing inspections since December 2023.
See each inspection and complaint
Complaints the state found valid
Received May 21, 2024Valid complaint, 1 rule citedresolved Jul 18, 2024
License and program locationSerious. Fix within 5 business days. The licensor rechecks within 10.
“The air sample results showed several slightly elvated and high mold spores in the sampled areas.”
WAC 110-300-0410(4)
Of the 207 Seattle-area centers licensed for 71 to 115 children, 139 (67%) have no valid complaint in the last three years; 68 (33%) have one or more, as this center does.
How all 207 similar-size centers compare
Of the 207 Seattle-area centers licensed for 71 to 115 children, how many valid complaints each had in the last three years:
- None67%
- One or more33%This center
Licensing inspections
- Jan 9, 2026Nothing cited
Jul 12, 20242 citations
Safety requirementsShort Term. Fix within 10 business days. Rechecked within 15.
“The cords were observed to be accessible to children in both classrooms. 110-300-0165(30)(a) - The knives and forks were observed in the cubbies at a level accessible to children, with no safety locks on them.”
WAC 110-300-0165(2)(c)
Immunizations and exempt childrenLong Term. The state’s lowest risk level. Fix within 20 business days, no recheck.
“Few immunization records observed in children's files were not updated with the latest immunization record.”
WAC 110-300-0210(1)(2)
Dec 22, 20233 citations
Food allergies and special dietary needsSerious. Fix within 5 business days. The licensor rechecks within 10.
“Individual care plan for KL has no information on substitute foods. Child AK needs an individual care plan for his medication. No individual care plan for the epi-pen.”
WAC 110-300-0186(1)
Emergency preparation and exitingSerious. Fix within 5 business days. The licensor rechecks within 10.
“Emergency playground doors locked.”
WAC 110-300-0166(3)(a)
Storage of hazardous and maintenance suppliesSerious. Fix within 5 business days. The licensor rechecks within 10.
“Sunscreen, hand sanitizer, and Clorox wipes accessible to children.”
WAC 110-300-0260(1)(a)
Dec 7, 20233 citations
Food allergies and special dietary needsSerious. Fix within 5 business days. The licensor rechecks within 10.
“Individual care plan for KL has no inforemation on substitute foods. Child AK needs an individual care plan for his medication. No individual care plan for the epi-pen.”
WAC 110-300-0186(1)
Emergency preparation and exitingSerious. Fix within 5 business days. The licensor rechecks within 10.
“Emergency playground doors locked.”
WAC 110-300-0166(3)(a)
Storage of hazardous and maintenance suppliesSerious. Fix within 5 business days. The licensor rechecks within 10.
“Sunscreen, hand santizer, and Clorox wipes accessible to chidlren.”
WAC 110-300-0260(1)(a)
The state cited rules at 3 of this center's 4 inspections. Seattle-area centers inspected 4 times split about evenly: about a third had fewer, a third the same, and a third more (272 centers).
How all 272 Seattle-area centers inspected 4 times compare
Of the 272 Seattle-area centers the state inspected 4 times, how many of those inspections cited a rule:
- None7%
- 1 of 415%
- 2 of 417%
- 3 of 433%This center
- All 429%
Read every record and the state’s reports
State record — Washington DCYF
- Last visit
- January 9, 2026
- On file
- 4 visits since December 2023 — 1 cited nothing · 1 complaint investigation
- Most serious
- Serious —
The air sample results showed several slightly elvated and high mold spores in the sampled areas.
· June 3, 2024
Washington DCYF publishes each citation in the licensor’s own words, with a risk level.
Jul 2024 Licensing visit 2 findings
Licensing visit · July 12, 2024
Immunizations and exempt children
WAC 110-300-0210(1)(2) · Long Term
Few immunization records observed in children's files were not updated with the latest immunization record.
WAC 110-300-0165(2)(c) · Short Term
110-300-0165(2)(c) - The cords were observed to be accessible to children in both classrooms. 110-300-0165(30)(a) - The knives and forks were observed in the cubbies at a level accessible to children, with no safety locks on them.
May 2024 Complaint 1 valid issue
Complaint · Received May 21, 2024 · Resolved July 18, 2024
WAC 110-300-0410(4) · Serious
The air sample results showed several slightly elvated and high mold spores in the sampled areas.
Dec 2023 Licensing visit 3 findings
Licensing visit · December 22, 2023
Food allergies and special dietary needs
WAC 110-300-0186(1) · Serious
Individual care plan for KL has no information on substitute foods. Child AK needs an individual care plan for his medication. No individual care plan for the epi-pen.
Storage of hazardous and maintenance supplies
WAC 110-300-0260(1)(a) · Serious
Sunscreen, hand sanitizer, and Clorox wipes accessible to children.
Dec 2023 Licensing visit 3 findings
Licensing visit · December 7, 2023
Food allergies and special dietary needs
WAC 110-300-0186(1) · Serious
Individual care plan for KL has no inforemation on substitute foods. Child AK needs an individual care plan for his medication. No individual care plan for the epi-pen.
Storage of hazardous and maintenance supplies
WAC 110-300-0260(1)(a) · Serious
Sunscreen, hand santizer, and Clorox wipes accessible to chidlren.
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
We couldn’t find it, so if you know, please share. We’ll publish it and work to confirm it with the provider directly too.
A day here
7 a.m. to 6 p.m., 5 days a week
How they teach
Montessori
“The Montessori method is based upon the child's ability to develop at his/her own pace in an enticing and curriculum rich environment.”
Details
- Phone
- (206) 232-2400
- Address
- 3027 80th Ave SE, Mercer Island, 98040
- License
- PL-22234
- Quality program
- Early Achievers Enrolled
- Established
- 1973
We couldn’t find some information that may matter to your decision: openings, Working Connections subsidy, cost, ratios and staff, 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.
How they teach
- Approach — Checked August 2026 earlyworldmontessori.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 earlyworldmontessori.com
Details
- Phone — Checked April 2026 earlyworldmontessori.com
- Website — Checked July 2026 earlyworldmontessori.com
- Address, Quality program — Checked June 2026 data.wa.gov
- License — Checked April 2026 findchildcarewa.org
- Ages on the license — Checked September 2026 findchildcarewa.org
- Established — Checked September 2026 earlyworldmontessori.com
Medium means the middle half of Seattle-area’s 855 licensed centers by state-licensed capacity: 41 to 115 children. Small is 6 to 40; large is 116 to 323.
The ages on the license are what the state licenses it to care for, which can be wider than the ages it takes.