Blog · October 14, 2026 · California
The Belmont GIS Map and the county parcel viewer
Parcel data for Belmont 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).
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For any lot around Foster City, the Belmont GIS map shows lines, owner names and parcel numbers. In this Belmont guide: which viewer to open, the fastest ways to search, and what to double-check with records.
Opening the Belmont GIS map: start here
For land near Foster City, some cities also run their own GIS portal for utilities or zoning; that can add detail on top of the county map.
Where the parcel data lives
Property in and around Redwood City are published on the San Mateo County parcel viewer, which opens without registering. When a rural tract has no street number, pan along the nearest road until the lines appear, then click inside the one you want, and that holds around Burlingame too. Out toward Burlingame, the record panel normally shows the owner of record, acreage on the tax roll, the parcel number and in many cases the last transfer.
Belmont, CA: the basics
Belmont sits in San Mateo County, California, which means parcel data comes from the county. For acreage around Hillsborough, City or town hall handles things like zoning, permits and utilities for lots inside the boundary, and the county still keeps the parcel and deed records. Lots just outside the city limits toward Burlingame generally falls under county rules rather than the town's.
Getting your bearings
Redwood City is the county seat, which is where the courthouse records live. Other places on the map include San Carlos, San Mateo, and Foster City. Roughly 726,353 people call San Mateo County home (Census Bureau estimate, 2023) on roughly 449 square miles. Places such as Don Edwards San Francisco Bay National Wildlife Refuge help you orient on the aerial around San Carlos.
Searching the map
Addresses are the easiest route inside Belmont; for owner searches, try last name first. For a home near San Mateo, a parcel ID is the most reliable search, and it's printed on tax bills.
Beyond the parcel lines
An aerial view around Hillsborough helps you see where buildings sit inside the lines.
A word on accuracy
The acreage figure is an estimate; only a licensed surveyor sets the real boundary on land around Burlingame. Closer to Burlingame, records update in batches, so a deed recorded last month might lag behind.
Recorded documents worth pulling
When the details count, request the recorded deed through the County Recorder; the parcel map near Hillsborough only summarizes it. If the land is near Redwood City, have ready the instrument number listed on the parcel record so staff can find the deed fast.
Offices that can help
Deeds, mortgages and recorded plats for land near Burlingame sit in the index kept by the County Recorder, often with an online index. Building or septic questions for a lot near Foster City need the planning or permitting office, depending on whether the land is inside town limits.
Printing and saving
Print or screenshot the parcel near Burlingame with its ID visible, so you have it when calling an office.
Inside the parcel card
The record for a parcel near San Carlos typically lists the owner of record, values and a legal description.
Taking the map into the field
The parcel map usually runs in a mobile browser, handy when you're parked on a road near San Carlos, though signal can drop in rural spots. A saved image of the lot near San Carlos and its lines helps when you meet an owner or agent.
Browser tips
If the viewer stalls on a phone near San Mateo, try a desktop browser or clear the cache; links occasionally change, and our directory page keeps the current one.
Sections, lots and bearings
California uses the Public Land Survey System, which means a tract near Burlingame is described by section, township and range. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though corrections make some sections near Redwood City odd-sized. Copy the legal description from the record for the parcel near San Mateo before you request a deed or survey.
Neighboring parcel maps
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 Burlingame may be split in two county records, so check the neighboring map as well. If the land is near Redwood City, the Platbookmapper state page lists each neighboring county map across California.
Frequently asked
Do I need an account for the parcel map near Burlingame?
It depends, but the San Mateo County parcel viewer is free and opens without a login, though printing may be limited.
Can I look up a property owner on the map near San Carlos?
Good question; click the lot near Hillsborough to see the owner; try variations if nothing comes up.
Where else can I find maps of Belmont?
Good question; check the Belmont website or ask city hall; the county viewer remains the main parcel source.
What layers does the parcel viewer have in Belmont?
If you're looking near Foster City, many viewers offer aerial imagery plus layers like city limits, zoning or flood zones; open the layer list to see what's there.
Which office handles records for land near Hillsborough?
For land near San Carlos, assessment goes to the County Assessor and deeds to the County Recorder, while zoning questions go to planning
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.