Montessori Elementary School in South San Francisco
The reason most families end up at Mills rather than somewhere closer: almost every other Montessori school within reach of here stops at kindergarten. Mills is in South San Francisco, at 1400 Hillside Blvd. in South San Francisco.
Why families here choose it
The question we get from South San Francisco is almost always the same one: what happens at six. Here the answer is that nothing happens — the child stays, in the same school, through fifth grade.
This is our own city. The school sits on the hill above downtown, which is why families have called it “the school on the hill” for decades. For most South San Francisco families the drive is a few minutes, and the 7:30 am opening exists because so many parents are heading down to the biotech campuses before eight.
What Montessori elementary school at Mills actually is
Elementary Montessori is not preschool with more reading. The work gets genuinely hard — long research projects running for weeks, extended writing, mathematics carried from concrete materials into abstraction, and findings presented to the class. It opens with the largest possible frame, the story of how the universe, the earth and human beings came to be, and hangs history, geography, biology and mathematics off it, because six- to eleven-year-olds want the whole story rather than the chapter. Collaboration is the default rather than an exception: work is negotiated, argued over and produced in pairs and small groups.
- Continuity is the whole argumentA child who already knows how to plan a morning and finish what they start walks into a curriculum built on those habits, instead of one that has to replace them.
- Big questions, deliberatelyCosmic education: the frame first, the specifics second.
- One school, one commuteFamilies with a toddler and a fourth-grader do a single drop-off. The eleven-year-old is still in the building the two-year-old is starting in.
The details that decide it
| Our campus | 1400 Hillside Blvd., South San Francisco, CA 94080 |
| Location | Mills is in South San Francisco |
| Getting here | Mills is in South San Francisco, on Hillside Boulevard above the town center. |
| Area | San Mateo County |
| Local public district | South San Francisco Unified School District |
| Ages served | Two through fifth grade |
| Hours | Monday to Friday, 7:30 am – 6:00 pm |
| Enrollment | Open year-round, subject to availability |
Distance is approximate and measured in a straight line. The honest test is to drive it once at drop-off time — book a tour and you will.
What Montessori elementary school costs
Elementary and summer run full day or extended full day rather than mornings, so from South San Francisco the question is which end of the day you need rather than how much of it.
- AgesThrough 5th grade
- Rates$1,400 full day · $1,750 extended full day, monthly, plus a $450 annual materials and testing fee. Every fee is on the tuition page.
- SchedulesMorning, full day, or extended full day 7:30 am to 6:00 pm — three, four or five days a week.
- EnrollmentOpen year-round, subject to availability, with a one-time $200 new-student fee.
What South San Francisco families ask about Montessori elementary school
- Will my child transfer to a traditional middle school all right?Yes — children leave at the end of fifth grade for public and private middle schools. The habits elementary Montessori builds are the ones middle school assumes and rarely teaches.
- Can a child join without a Montessori background?Yes, and children do. It takes a settling-in period — a child used to being told what to do next often finds the freedom harder than the work — and we would want to talk through your child specifically first.
- Is the Montessori elementary school different for families traveling from South San Francisco?No — there is one program and one campus. What changes with distance is the schedule that suits you: families driving further usually choose the extended full day so they are not fighting the peak twice a day.
- What does it cost?Between $1,100 and $1,750 a month depending on the program, days per week and length of day, plus a one-time $200 enrollment fee. Every figure is on the tuition page — we do not make you ask.
- Can we start mid-year?Yes. Enrollment is open all year, subject to availability, so families move to us when a childcare arrangement changes rather than waiting for September.
- What happens after kindergarten if we come from South San Francisco?The same school. Mills runs through fifth grade, so the kindergarten year is not the exit — which is the main reason families take on a drive at all rather than enrolling somewhere closer that finishes at five.
- We are in the South San Francisco Unified School District. Does that affect enrollment?No. Mills is a private school and enrollment has nothing to do with district boundaries. The district matters only in that it is your free alternative, and it is a fair thing to weigh — we have written an honest comparison with California TK that argues both sides.
Come and watch a morning
Tours run mid-morning during the work cycle, year-round, by appointment.