Addison, TX · Founded 1950 · K–12 · Nonsectarian, independent coeducational day school; ISAS and NAIS member
Last verified August 20, 2026
4141 Spring Valley Rd, 75001 · (972) 628-5400
Enrollment
1302
Student:teacher
5:1
Published tuition
$34,740–$43,450
Application fee
$100
Tuition by division
| Division | Grades | Annual tuition | Notes |
|---|---|---|---|
| Preschool / Pre-K2026-2027 | Prekindergarten – 1st Grade | $34,740 | — |
| Elementary2026-2027 | 2nd Grade – 4th Grade | $34,880 | — |
| Elementary2026-2027 | 5th Grade – 6th Grade | $40,070 | — |
| Middle school2026-2027 | 7th Grade – 8th Grade | $42,360 | — |
| High school2026-2027 | 9th Grade – 11th Grade | $42,950 | — |
| High school2026-2027 | 12th Grade | $43,450 | — |
Head of school
Lee J. Hark
Head of School since 2018
Lee Hark joined Greenhill in 2018 as its fifth head of school, bringing more than 25 years of experience from Choate Rosemary Hall, Providence Day School, and Durham Academy.
Curriculum & special classes
A college-preparatory curriculum for Pre-K through grade 12 emphasizing complexity, integrity, inclusion, and academic excellence.
Financial aid
Aid decisions are based solely on demonstrated need and provided as tuition grants.
Application fee: $100
Before & after school care
Before school
Holiday Care is offered on select days from 7:30 am.
After school
Extended Day is available for Preschool through Middle School students after school until 6:00 pm. It includes snacks, supervised homework space, and opportunities to socialize. Extend & Explore classes are also offered.
Cost
Preschool After Care (2:45 – 6:00 pm): $550 monthly; Lower School After Care (3:15 – 6:00 pm): $485 monthly; Middle School After Care (3:45 – 6:00 pm): $380 monthly. Holiday Care costs $80 per full day and $55 per half day. Late pick-up fee: $2.00 per minute.
Extended-care hours and rates change yearly — parents can correct these below.
Admissions
Applications for the 2027-2028 school year will open in early September. The process involves submitting an online application, attending optional admission events, scheduling shadow visits and interviews, and completing testing and observations.
Apply by
Part I Application Due: December 12 (Pre-K – Grade 11); Application & Financial Aid Application Due: January 26 (if applicable)
Acceptance rate
Not listed
Application fee
$100
What they ask for: Online application, optional admission events, shadow visits, interviews, testing, observations, financial aid application (if applicable)
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