Mayfair Ost is a certified child care center in Philadelphia, PA. It holds a Keystone STAR 1 rating. Since August 2021, Pennsylvania certification staff have inspected it 5 times. The state cited 6 violations, 2 of them core-safety (supervision, staff ratios, discipline, background checks, child protection or safe sleep), most often for training & qualifications (3 of 6). None of them came in the last 12 months. Measured by topic-weighted citations per inspection, it is tied for #142 of 1,163 centers in Philadelphia and has fewer citations per inspection than 86% of Pennsylvania certified centers.
Inspection record
Every state visit
What inspectors cited most
Citations, newest first
At the time of inspection on 4/24/2025, Certification Representative observed that not all staff were assigned the responsibility of specific children within a group. Two staff in the group were assigned to all children in the group.
Facility staff #2, #4, #5 and #6 did not complete the required health and safety trainings within 90 days of hire.
The agreement forms for facility children #1 - #5 did not specify the persons designated by the parent to whom the child may be released.
Facility staff #1 - #5 did not obtain the required pediatric first aid and cpr training within 90 days of hire.
At the time of inspection on 4/22/2024, Certification Representative observed one staff with 16 younger and older school aged children.
During the renewal inspection conducted on 3/9/2022 observed staff person #1 and #2 did not have the annual minimum of 12 clock hours of child care training on file.
“Core safety” marks citations about supervision and staff ratios, discipline and caregiver conduct, background checks, child protection and safe sleep, the topics our score weights most. Pennsylvania’s records don’t grade violations by severity. “Follow-up” marks a violation re-cited at a follow-up visit, counted once. How scores work.
Daily rates
| Age group | Full time, per day | Part time, per day |
|---|---|---|
| Young School-Age (K-3rd gr.) | $57.20 | $46.80 |
| Older School-Age (4th gr.-15 yrs.) | $57.20 | $46.80 |
The daily price the center lists in Pennsylvania’s COMPASS search for families paying privately. The state notes that rates are subject to change and programs don’t have to share them, so confirm with the center. See what daycare costs in Pennsylvania.
About this center
Common questions
Has Mayfair Ost had any serious violations?
Pennsylvania cited 2 violations since 2021 on the topics Daycare Record treats as core safety (supervision, staff ratios, discipline, background checks, child protection or safe sleep). The most recent, on Mar 28, 2025 (supervision): “At the time of inspection on 4/24/2025, Certification Representative observed that not all staff were assigned the responsibility of specific children within a group. Two staff in the group were assigned to all children…” Pennsylvania’s records don’t grade violations by severity; each citation is listed in full above.
Have there been complaints about Mayfair Ost?
Pennsylvania lists no complaint investigation that found a violation at Mayfair Ost since 2021. Its search shows these “verified complaints” but not what a complaint alleged, or whether every violation relates to it.
What is Mayfair Ost’s Keystone STARS rating?
STAR 1, effective Apr 26, 2019. Keystone STARS is Pennsylvania’s quality rating program for child care, from STAR 1 to STAR 4. It measures program quality, not inspection results, so read both.
How does Mayfair Ost compare with other daycares in Philadelphia?
It is tied for #142 of 1,163 centers in Philadelphia by topic-weighted citations per inspection, and has fewer citations per inspection than 86% of Pennsylvania certified centers with enough inspection history to compare.
When was Mayfair Ost last inspected?
Jun 10, 2026 (renewal). No violations were cited during that visit.
How much does Mayfair Ost cost?
It reported full-time daily rates of $57.20 for young school-age, $57.20 for older school-age in Pennsylvania’s COMPASS search. Rates can change; confirm with the center.
Who runs Mayfair Ost?
The legal entity on its Pennsylvania certificate is Catholic Social Services.
Certified centers nearby
7340 Jackson St, Philadelphia · under 0.1 mi away · 80 spots Fewer citations than most Forrest Boys & Girls Club
4300 Bleigh Ave, Philadelphia · 0.1 mi away No citations Torresdale Learning Center
7450 Torresdale Ave, Philadelphia · 0.2 mi away · 28 spots Fewer citations than most Colors Numbers and Shape Daycare & Learning Center
7133 Torresdale Ave, Philadelphia · 0.3 mi away · 21 spots About typical Bel Air Academy
4343 Princeton Ave, Philadelphia · 0.3 mi away · 38 spots More citations than most See Saw Daycare
7425 Frankford Ave # 1, Philadelphia · 0.4 mi away · 105 spots Fewer citations than most
Citations are quoted from Pennsylvania Department of Human Services inspection records (Office of Child Development and Early Learning, Bureau of Certification Services), including each finding and the center’s plan of correction. Rule numbers refer mostly to 55 Pa. Code Chapter 3270, the rules for child care centers; a few cite Chapter 20, which covers every certified facility. Pennsylvania’s records don’t grade violations by severity; the “core safety” label and the score are Daycare Record’s.
To check the state’s own record, search the center’s name on COMPASS Child Care Provider Search and open its inspection history. Data refreshed Oct 16, 2026.
Comparing centers? See how to choose a daycare: 30 questions to ask and a printable checklist.
Concerned about this center? See how to report a daycare: which state line to call, what to write down and what happens next.