Blog · October 14, 2026 · California
Using the Millbrae GIS Map
Parcel data for Millbrae comes from the county, and the viewer is free.
Main page: San Mateo County, CA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
For a parcel in or near Millbrae, a look at the Millbrae GIS map gives you the outline, the owner of record and a parcel ID. This Millbrae guide covers: which viewer to open, how to search it, and the limits worth knowing.
Finding a lot on the Millbrae GIS map
In most places the county maintains the parcel layer, and for Millbrae that means the San Mateo County parcel viewer.
Where the parcel data lives
Begin with the San Mateo County parcel viewer; it maps each assessed parcel from Burlingame to San Bruno. If you only know roughly where the land is, pan along the nearest road and click the parcel itself, which applies near San Bruno as much as anywhere. Closer to South San Francisco, the record panel usually lists the owner of record, assessed acreage, the parcel number and in many cases the last transfer.
Millbrae, CA: the basics
Millbrae lies within San Mateo County, California, and the county assessor maps its lots. Closer to South San Francisco, City or town hall handles matters such as zoning, permits and utilities within town limits, while the county keeps the tax map. Land beyond the town limits out by Brisbane usually falls under county rules rather than the town's.
Three ways to find a parcel
By address works best for lots in Millbrae; owner search often wants the surname first. If you're looking near Brisbane, searching by parcel number never misses, and it's printed on tax bills.
How land is described here
California is laid out under the Public Land Survey System, so deeds around Pacifica reference sections and townships. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though corrections make some sections near San Bruno odd-sized. Copy the legal description from the record for the parcel near Hillsborough when you talk to a surveyor.
Beyond the parcel lines
Toggling imagery near Pacifica shows roofs, driveways and tree lines next to the parcel edges.
Backing up the map with records
Before you sign anything, request the recorded deed through the County Recorder; the parcel line is a drawing of it, and that holds around South San Francisco too. Near Pacifica, bring the instrument number shown in the record panel so staff can find the deed fast.
When the map won't load
When the map won't open around Pacifica, switch browsers or turn off pop-up blockers; links occasionally change, and our directory page keeps the current one.
Places you'll see on the map
Redwood City serves as the county seat, where most land records are kept. You'll also find Burlingame, San Bruno, Hillsborough, and South San Francisco, each with its own cluster of lots. Around 726,353 people live in San Mateo County (Census estimate, 2023) on roughly 449 square miles. Places such as Don Edwards San Francisco Bay National Wildlife Refuge are easy to spot when you zoom out from Pacifica.
Reading a parcel record
The record for a parcel near Pacifica typically lists owner and value fields plus the parcel number.
Taking the map into the field
The parcel map usually runs in a mobile browser, which helps when you're standing on land near San Bruno, so load it before you lose signal. A printout of the tract near Pacifica helps when you meet an owner or agent.
Which office to call
If the acreage or value on a parcel near Burlingame looks off are handled by the County Assessor, the office behind the parcel record. Zoning, permits and septic questions near Pacifica go to planning, building or health offices, depending on whether the land is inside town limits.
Limits of the parcel data
Listed acreage is an assessed number; just a licensed surveyor sets the real boundary for a parcel near Burlingame. For a tract near San Bruno, records update in batches, so a deed recorded last month can take weeks to appear.
Saving what you find
Save a screenshot of the lot near Pacifica and its record panel, so you have it when calling an office.
Land on the county line
San Mateo County meets Alameda County, San Francisco County, Santa Clara County, and Santa Cruz County, and each of those keeps its own parcel map. A tract near the line by Brisbane can be split across two assessors' files, so look at the adjacent map before you assume the acreage. For land near Burlingame, the Platbookmapper state page lists each neighboring county map across California.
Millbrae: common questions
Are parcel lines on the map exact for land near San Bruno?
For most people, the map near Brisbane isn't a survey; get a survey before a fence.
Why does a recent sale near South San Francisco not show?
For a tract near Pacifica, updates come in batches.
Can I see aerial photos on the map near Brisbane?
For land near Burlingame, many viewers offer aerial imagery plus layers like city limits, zoning or flood zones; open the layer list to see what's there.
Can I look up a property owner on the map near South San Francisco?
For most people, click the lot near Hillsborough to see the owner.
Is the parcel map a survey in Millbrae?
The map near San Bruno is approximate, so a fence may sit off the line
Open the official San Mateo County, CA parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.