One of the most common surprises for buyers here: two homes that look almost the same, a few blocks apart, sell for noticeably different prices. Often the difference is a line you can't see, the school attendance boundary. Here's how that works in San Mateo County and how to protect yourself before you write an offer.

Why the lines matter so much here

San Mateo County doesn't have one school district. It has a patchwork of elementary districts, separate high school districts, and boundaries that don't always follow city limits. A family moving here is often choosing a school assignment as much as a house. Because demand for certain districts is so strong, the premium on the in-demand side of a line can be significant. It shows up in sale prices, in how many offers a home gets, and in how fast it sells.

Cities where the lines get tricky

  • Menlo Park: most of the city is in the Menlo Park City School District, but parts of west Menlo are in Las Lomitas, and Belle Haven is in Ravenswood. Same city name, three different elementary districts.
  • Redwood City: most homes are in the Redwood City School District, but Redwood Shores belongs to the Belmont-Redwood Shores district. High school assignment (Sequoia or Woodside) also depends on address.
  • San Mateo: elementary schools are mostly San Mateo-Foster City School District, but high school assignment (San Mateo, Aragon, or Hillsdale) changes from neighborhood to neighborhood.
  • Hillsborough: the town has its own K–8 district, but high school assignment within the San Mateo Union High School District depends on where you live.
  • Burlingame: every address goes to Burlingame High, but which of the elementary schools you're assigned to depends on your block.

Things that catch buyers off guard

The listing isn't a guarantee. Listing remarks and third-party websites often show a "nearby" school, which isn't necessarily the assigned one. They're a starting point, not proof.

Assigned doesn't always mean guaranteed a seat. When a school is at capacity (districts call this "impacted"), new students can be placed at a different school in the district, at least for a while. Ask the district about current enrollment before you rely on a specific campus.

Boundaries can change. Districts occasionally redraw lines when enrollment shifts. It doesn't happen often, but it does happen.

Transfers aren't a sure thing. Inter-district transfers exist but depend on space and district policy. Don't buy on the assumption that you'll get one.

How to check an address the right way

  1. Use the district's own boundary lookup or school locator tool (most districts have one on their website).
  2. Call or email the district's enrollment office with the exact address, and keep the written reply.
  3. Check both the elementary district and the high school district. They're separate agencies here.
  4. Do this before you write an offer, not during escrow.

What this means for your price

If a home is on the in-demand side of a boundary, the comparable sales you use should be on that same side too. Comparing it to a lookalike across the line can make a list price look like a bargain, or make a fair price look high. When I pull comps for clients, I sort them by school assignment first. The same idea applies to city lines, which can create even bigger gaps.

Each city page on my site has a schools section as a starting point. If you're looking at a specific home, send me the address and I'll help you confirm the assignment and find the right comps.