Nassau Nursery School
PRINCETON, NJ·Licensed Child Care CenterLicensed
Contact information
Address33 Mercer Street, Princeton, NJ, 08540
CountyMercer
Phone609-924-0566
Operating details
Capacity49
Compliance snapshot
Last inspection: 3/10/2026 · Counts cover the full published inspection history; search results show the past 2 years.
- High6
- Medium-High13
- Medium5
- Medium-Low1
- Low0
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Location
Using Address for Location
Exact coordinates aren't available, but you can view this location at:
33 Mercer Street, Princeton, NJ, 08540, PRINCETON, NJ 08540
Questions to ask on a tour
Chosen for this facility's inspection history and profile — bring them along on your visit.
- Ask how they keep enrollment, immunization, and emergency-contact records current - their state findings include documentation lapses
- Ask about teacher-to-child ratios and how supervision is maintained through the day
- Ask about their illness policy and which symptoms require a child to stay home
- Ask about their security measures, visitor policy, and pickup procedures
Violation summary
Last 2 years · Last inspection: 3/10/2026
- High6
- Medium-High13
- Medium5
- Medium-Low1
- Low0
2026
- Medium-Low risk3/10/2026
N.J.A.C. 3A:52-3.4(a) — Provide documentation that the center has current comprehensive general liability insurance coverage.
Provide documentation that the center has current comprehensive general liability insurance coverage. Regulation: The sponsor or sponsor representative shall secure comprehensive general liability insurance coverage for the center and shall maintain on file a copy of the insurance policy or documentation of current insurance coverage.
Corrected 4/14/2026 - Medium risk3/10/2026
N.J.A.C. 3A:52-5.3(f)(2) — Provide proper lid for toilet in boys' bathroom.
Provide proper lid for toilet in boys' bathroom. Regulation: Toilet facility requirements are as follows: mirrors, dispensers, and other equipment shall be fastened securely.
Corrected 5/18/2026 - Medium risk3/10/2026
N.J.A.C. 3A:52-5.3(c)(1) — Ensure all fluorescent tubes and incandescent light bulbs have protective covers or shields in bathroom hallway.
Ensure all fluorescent tubes and incandescent light bulbs have protective covers or shields in bathroom hallway. Regulation: Lighting requirements are as follows: all fluorescent tubes and incandescent light bulbs shall have protective covers or shields. During program activities, at least 20 foot-candles of natural or artificial light shall be provided in all rooms used by the children. This illumination shall be measured three feet above the floor at the farthest point from the light source. Parking areas, pedestrian walkways, or other exterior portions of the premises subject to use by center occupants at night shall be illuminated to provide safe entrance to and egress from the center.
Corrected 7/15/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-5.3(b)(7) — Replenish resilient surfacing as required in all play equipment use zones in accordance with ASTM F1292.
Replenish resilient surfacing as required in all play equipment use zones in accordance with ASTM F1292. Regulation: Outdoor maintenance and sanitation requirements are as follows: the center shall comply with the Playground Safety Subcode of the New Jersey Uniform Construction Code, as specified in N.J.A.C. 5:23-11.
Corrected 4/14/2026 - Medium risk3/10/2026
N.J.A.C. 3A:52-5.3(a)(19) — Test for the presence of radon gas as required.
Test for the presence of radon gas as required. Regulation: the center shall test for the presence of radon gas in each classroom on the lowest floor level used by children at least once every five years and shall post the test results in a prominent location in all buildings at the center, as specified in N.J.S.A. 30:5B-5.2.
Corrected 4/14/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-5.3(a)(10) — Ensure that all toxic substances are inaccessible to the children in Room G13.
Ensure that all toxic substances are inaccessible to the children in Room G13. Regulation: Indoor maintenance and sanitation requirements are as follows: all corrosive agents, insecticides, bleaches, detergents, polishes, any products under pressure in an aerosol spray can, and any toxic substance shall be stored in a locked cabinet or in an enclosure located in an area not accessible to the children.
Corrected 3/10/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-5.3(a)(1) — Replace stained ceiling tile in bathroom hallway.
Replace stained ceiling tile in bathroom hallway. Regulation: (a) Indoor maintenance and sanitation requirements are as follows: 1. The center shall be free of moisture resulting from water leaks or seepage. 2. Floors, carpeting, walls, window coverings, ceilings, and other surfaces shall be kept clean and in good repair. 4. Carpeting shall be securely fastened to the floor. 9. Toilets, wash basins, kitchen sinks, and other plumbing shall be maintained in good operating and sanitary condition.
Corrected 7/15/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-5.3(a)(1) — Replace stained ceiling tile in hallway.
Replace stained ceiling tile in hallway. Regulation: (a) Indoor maintenance and sanitation requirements are as follows: 1. The center shall be free of moisture resulting from water leaks or seepage. 2. Floors, carpeting, walls, window coverings, ceilings, and other surfaces shall be kept clean and in good repair. 4. Carpeting shall be securely fastened to the floor. 9. Toilets, wash basins, kitchen sinks, and other plumbing shall be maintained in good operating and sanitary condition.
Corrected 7/15/2026 - Medium risk3/10/2026
N.J.A.C. 3A:52-4.5(c)(1) — Ensure that the director is at the center at least 50% of the center's daily operating hours.
Ensure that the director is at the center at least 50% of the center's daily operating hours. Regulation: The director shall be scheduled to work at the center at least 50 percent of the center’s daily operating hours.
Corrected 5/18/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-7.7(e)(1)(iii) — Ensure diapering surfaces are washed and disinfected after each use in Room G17.
Ensure diapering surfaces are washed and disinfected after each use in Room G17. Regulation: In addition to the items specified in (a)3 above, the following equipment items or surfaces shall be washed and disinfected after each use: iii. Diapering surfaces;
Corrected 5/18/2026 - Medium risk3/10/2026
N.J.A.C. 3A:52-7.7(a)(3)(iv) — Ensure tables are washed and disinfected before each meal in Room G17.
Ensure tables are washed and disinfected before each meal in Room G17. Regulation: Tables used by the children for eating shall be washed and disinfected before each meal.
Corrected 5/18/2026 - High risk3/10/2026
N.J.A.C. 3A:52-4.8(d) — Ensure that all credentialed staff complete 20 hours of staff development annually.
Ensure that all credentialed staff complete 20 hours of staff development annually. Regulation: The director, head teacher(s), group teacher(s), and program supervisor(s) shall each complete 20 hours of staff development each year. Recommended topics of training for these staff include educational and physical activity; special needs programming and program development; social-emotional and behavioral development for young children; legal issues, including ADA guidelines and leadership and advocacy.
Corrected 5/18/2026 - High risk3/10/2026
N.J.A.C. 3A:52-4.8(a) — Ensure that all staff complete orientation training within two weeks of hire and annually.
Ensure that all staff complete orientation training within two weeks of hire and annually. Regulation: (a) Topics of orientation training shall include all of the following: 1. Supervising and tracking all children, as specified in N.J.A.C. 3A:52-4.3(a); 2. Understanding center operations, policies and procedures, as specified in N.J.A.C. 3A:52-4.5(b)3; 3. Implementing group size limits and primary caregiver responsibilities, as applicable, as specified in N.J.A.C. 3A:52-4.4; 4. Recognizing and reporting child abuse or neglect, as specified in N.J.A.C. 3A:52-4.9; 5. Evacuating the center and using the fire alarms, as specified in N.J.A.C. 3A:52-5.3(l); 6.Implementing the center’s release policy, as specified in N.J.A.C. 3A:52-6.5; 7. Implementing the center's statement of policy on the disciplining of children, as specified in N.J.A.C. 3A:52-6.6; 8. Implementing health practices, including medication administration and responding to symptoms of illness, as specified in N.J.A.C. 3A:52-7.1 through 7.11; 9. Implementing safe sleep practices to prevent Sudden Infant Death Syndrome; 10. Preventing Shaken Baby Syndrome and Abusive Head Trauma; 11. Recognizing and responding to injuries and emergencies, including the prevention of and response to emergencies due to food-related allergies and other allergic reactions; and 12. Including children with special needs in the center’s program.
Corrected 4/14/2026 - High risk3/10/2026
N.J.A.C. 3A:52-4.10(a) — Ensure that CARI background checks are completed as required for all regularly scheduled staff.
Ensure that CARI background checks are completed as required for all regularly scheduled staff. Regulation: As a condition of securing a new or renewal license or Certificate of Life/Safety Approval, the sponsor or sponsor representative shall provide for himself or herself, and shall obtain from all staff members who are or will be working at the center on a regularly scheduled basis, written consent for the Department to conduct a Child Abuse Record Information (CARI) background check to determine whether an incident of child abuse or neglect has been substantiated against any such person. If a staff member refused to consent to a CARI background check, the sponsor or sponsor representative shall immediately terminate the staff member's employment at the center.
Corrected 4/14/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-5.3(n)(1) — Ensure fire drills are conducted during each session provided at the center, one fire drill per year is conducted during nap time, if applicable, and all children are evacuated from the building within three minutes during each
Ensure fire drills are conducted during each session provided at the center, one fire drill per year is conducted during nap time, if applicable, and all children are evacuated from the building within three minutes during each fire drill. Regulation: Fire prevention requirements are as follows: the center shall conduct fire drills at least once a month, as specified in the NJUFC. The center shall ensure that fire drills are conducted during each session provided at the center and that one fire drill per year is conducted during nap time, if applicable. The center shall ensure that all children present are evacuated from the building within three minutes during each fire drill.
Corrected 4/14/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-5.3(n)(4) — Ensure that all fire extinguishers are serviced and tagged annually and recharged if necessary.
Ensure that all fire extinguishers are serviced and tagged annually and recharged if necessary. Regulation: Fire prevention requirements are as follows: all fire extinguishers shall be visually inspected once a month, and serviced and tagged at least once a year and recharged, if necessary, as specified in the NJUFC.
Corrected 4/14/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-5.3(o)(1) — Ensure that at least two staff members who have current pediatric first aid and CPR certifications are present at the center at all times and that the training includes a hands-on component in addition to any online training.
Ensure that at least two staff members who have current pediatric first aid and CPR certifications are present at the center at all times and that the training includes a hands-on component in addition to any online training. Regulation: First aid requirements are as follows: at least two staff members who have current certified basic knowledge of first aid principles and cardiopulmonary resuscitation (CPR), as defined by a recognized health organization (such as the American Red Cross), shall be in the center at all times when enrolled children are present. The first aid and CPR training shall include a hands-on training component in addition to any online training coursework.
Corrected 4/14/2026 - High risk3/10/2026
N.J.A.C. 3A:52-7.5(b)(10) — Ensure Epi-pens are stored in their original boxes with the child's name and prescription, accompanied by a special care plan that includes procedures for contacting parents and emergency medical services, and both epi-pens are
Ensure Epi-pens are stored in their original boxes with the child's name and prescription, accompanied by a special care plan that includes procedures for contacting parents and emergency medical services, and both epi-pens are present when two are required. Regulation: (9) The center shall develop and follow a policy on the administration of medication and health care procedures to children, which shall include the following provisions: before administering a health care procedure associated with a child’s health condition, such as the use of a blood glucose monitor, nebulizer, or epinephrine pen, the center shall ensure that all staff members who administer the procedure are taught to do so by the child’s parent or another appropriately-trained person. There shall be at least two staff members present at the center who are trained in such health care procedures. 10. The center shall store prescribed epinephrine pens in their original boxes with the child’s name and prescription. A special care plan or other documentation from a health care provider shall accompany the epinephrine pen. If two epinephrine pens are required, both shall be available. Each center under the jurisdiction of N.J.S.A. 18A:40-12.5 shall store back-up epinephrine pens on site consistent with the requirements stated at N.J.S.A. 18A:40- 12.5.e(1).
Corrected 4/14/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-7.8(a)(1) — Ensure that children wash their hands with soap and running water immediately after outdoor play.
Ensure that children wash their hands with soap and running water immediately after outdoor play. Regulation: Handwashing requirements are as follows: the center shall ensure that children three months of age and older wash their hands with soap and running water before intake of food; immediately after using the toilet or having diapers changed; immediately after coming into contact with blood, fecal matter, urine, vomit, nasal secretions, or other body fluids or secretions; immediately after coming in contact with an animal's body secretions; and immediately after outdoor play. (2)for children under three months of age or for those children three months of age and older wherein hand washing with soap and running water may not be developmentally appropriate, the center may use an alternate means for hand washing, including but not limited to disposable baby wipes.
Corrected 4/14/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-7.8(a)(1) — Ensure that children wash their hands with soap and running water after coming in contact with nasal secretion in Room G14.
Ensure that children wash their hands with soap and running water after coming in contact with nasal secretion in Room G14. Regulation: Handwashing requirements are as follows: the center shall ensure that children three months of age and older wash their hands with soap and running water before intake of food; immediately after using the toilet or having diapers changed; immediately after coming into contact with blood, fecal matter, urine, vomit, nasal secretions, or other body fluids or secretions; immediately after coming in contact with an animal's body secretions; and immediately after outdoor play. (2)for children under three months of age or for those children three months of age and older wherein hand washing with soap and running water may not be developmentally appropriate, the center may use an alternate means for hand washing, including but not limited to disposable baby wipes.
Corrected 4/14/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-7.8(a)(4) — Ensure that staff wash their hands with soap and running water immediately after each diaper change in Room G17.
Ensure that staff wash their hands with soap and running water immediately after each diaper change in Room G17. Regulation: Handwashing requirements are as follows: staff members shall wash their hands with soap and running water immediately before preparing or serving food; after toileting; after assisting a child in toileting; after caring for a child who appears to be sick; after coming in contact with an animal's body secretions; and after coming into contact with blood, fecal matter, urine, vomit, nasal secretions, or other body fluids or secretions. 7.8(d)3- Staff members hands are washed after changing each diaper.
Corrected 5/18/2026 - Medium-High risk3/10/2026
N.J.A.C. 3A:52-7.8(a)(4) — Ensure that staff wash their hands with soap and running water after coming in contact with nasal secretion in Room G13.
Ensure that staff wash their hands with soap and running water after coming in contact with nasal secretion in Room G13. Regulation: Handwashing requirements are as follows: staff members shall wash their hands with soap and running water immediately before preparing or serving food; after toileting; after assisting a child in toileting; after caring for a child who appears to be sick; after coming in contact with an animal's body secretions; and after coming into contact with blood, fecal matter, urine, vomit, nasal secretions, or other body fluids or secretions. 7.8(d)3- Staff members hands are washed after changing each diaper.
Corrected 4/14/2026 - High risk3/10/2026
N.J.A.C. 3A:52-4.10(a) — Ensure that CARI background checks are completed as required for the sponsor/sponsor representative.
Ensure that CARI background checks are completed as required for the sponsor/sponsor representative. Regulation: As a condition of securing a new or renewal license or Certificate of Life/Safety Approval, the sponsor or sponsor representative shall provide for himself or herself, and shall obtain from all staff members who are or will be working at the center on a regularly scheduled basis, written consent for the Department to conduct a Child Abuse Record Information (CARI) background check to determine whether an incident of child abuse or neglect has been substantiated against any such person. If a staff member refused to consent to a CARI background check, the sponsor or sponsor representative shall immediately terminate the staff member's employment at the center.
Corrected 4/14/2026 - High risk3/10/2026
N.J.A.C. 3A:52-4.11(a) — Ensure that CHRI background checks are completed as required for all regularly scheduled staff.
Ensure that CHRI background checks are completed as required for all regularly scheduled staff. Regulation: As a condition of securing a license or Certificate of Life/Safety Approval, the sponsor or sponsor representative shall ensure that a Criminal History Record Information (CHRI) fingerprint background check is completed for himself or herself, and for all staff members at least 18 years of age who are or will be working at the center on a regularly- scheduled basis, to determine whether any such person has been convicted of a crime, as specified in P.L. 2000, c. 77 (N.J.S.A. 30:5B-6.10 to 6.17). If a staff member refuses to consent to a CHRI background check, the sponsor or sponsor representative shall immediately terminate the staff member’s employment at the center.
Corrected 4/14/2026
2025
- Medium-High risk4/30/2025
N.J.A.C. 3A:52-5.3(i)(8) — Submit a Safe Building Interior Certification or other approval issued by the DOH.
Submit a Safe Building Interior Certification or other approval issued by the DOH. Regulation: at the time of the initial application, any renewal application, relocation of an existing licensed center, and, as determined by the Office of Licensing, on a case-by-case basis, the facility operator shall submit to the Office of Licensing a Safe Building Interior Certification or other approval issued by the Department of Health that indicates that no further remediation is needed for the interior of the building in which the center is located. the Office of Licensing shall not issue licenses or renewals to child care centers that are co-located in a building or other structure that contains a dry cleaner or nail salon unless the applicant obtains indoor air sampling that demonstrates that there is no impact to the child care center.
Corrected 10/23/2025
Showing the 25 most recent of 68 records on file; the full history loads with the interactive view.
Safety & Compliance Analysis
This daycare has multiple recorded violations. Review the details to make an informed decision.
(Past 6 Months)
Parent Recommendations
Based on the violation data, here are some recommendations:
- Review the detailed violations listed above.
- Ask the daycare about their response to these violations.
- Look at the correction status to see how quickly issues were addressed.
- Schedule a visit during regular hours to observe daily operations.
Note: This analysis is based on publicly available violation data and is intended as a tool to help parents make informed decisions. Always visit a daycare in person and ask specific questions about areas of concern.
Estimated monthly cost
$999/month
This is a modeled estimate — based on location, ages served, and program data — not the provider's actual tuition. Real prices vary by age group and services. Contact the daycare for current rates, fees, and availability.
Typical prices in New Jersey run about $1,247/month for infant care at a center (federal median) — see daycare costs in New Jersey by age group.
About this daycare
- Location: PRINCETON, Mercer County
- Capacity: 49
- Type: Licensed Child Care Center
What parents actually pay
No parent-reported prices yet. If your child attends here, you can be the first to add one.
Parent Reviews
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