Happy Hearts Montessori

Center · Unincorporated King County · 23855 SE 216th St

What kind of place is this?

Size 64 children licensed In the middle half for Seattle centers, where the middle half licenses 43–121. Measured across 576 Seattle centers, 2026-08-17.

Will it fit our family?

Ages served Ages 2 ½ Years – 6 Years
Hours 8:30 AM – 3:30 PM
Days / week 5
Schedule Full Day and Half Day (Monday–Friday)

What will it cost us?

Monthly tuition From $1,660 about $11/hr
Part-time $1,100/mo
Application fee $550
Sibling discount 10% tuition discount for younger siblings

What Shortlist has verified

State quality rating Early Achievers Enrolled
License status Active

State record — Washington DCYF

Last visit
March 16, 2026
On file
3 visits since March 2024 — 1 cited nothing
Fixed?
Washington DCYF does not publish whether a finding was corrected.
Most serious
SeriousLicensor observed that the provider did not have an EpiPen that was required in a child's Individual Care Plan. Date Disputed Date Disputed · March 16, 2026

Washington DCYF publishes the licensor’s own observation and a risk level for every citation it issues at a licensing visit, with the inspection report attached as a PDF.

Mar 2026 Licensing visit 2 findings

Licensing visit · March 16, 2026

Food allergies and special dietary needs

WAC 110-300-0186(2) · Serious

Licensor observed that the provider did not have an EpiPen that was required in a child's Individual Care Plan. Date Disputed Date Disputed

Child records

WAC 110-300-0460(3) · Short Term

Licensor observed that a child's file was missing the address and phone number of their emergency dental and primary care provider.

Report (PDF)

May 2025 Licensing visit nothing cited Report (PDF)
Mar 2024 Licensing visit 2 findings

Licensing visit · March 20, 2024

Safety requirements

WAC 110-300-0165(2)(d) · Serious

Licensor observed a rolled up wifi cord accessible to children. 0165 (2d) Licensor observed plastic bags with draw string straps used to store sleep mats were laid on the floor accessible to children while staff prepared children for nap time. 0165 (5e) Licensor observed a surge protector was accessible to children. 0165 (5f) Licensor observed a power surge with extension cord was accessible to children.

Storage of hazardous and maintenance supplies

WAC 110-300-0260(5) · Serious

Licensor observed garden tools in one outdoor play area accessible to children.

Report (PDF)

Before you tour

Ask what changed after the three findings Washington DCYF ranked Serious, most recently in March 2026.It does not publish whether a finding was fixed. The rest carry its lower risk levels.

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.

What kind of place is this

Not yet reported: established, teaching approach.

Will it fit our family

Not yet reported: holiday closures.

What will it cost us

Pricing per provider website, checked July 2026.

Licensing and contact

State record

Every state visit and complaint on file, shown in full and never edited. Open a date to read what the state wrote.

Do you run Happy Hearts Montessori? Shortlist has no tuition, hours or ratios for it, because the state does not publish that. Add what is missing. It is free and takes about ten minutes.