San Mateo County property record for 820 10th Ave, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,040 sqft · built 1936 |
| Lot Size | 0.121 acres (5,288 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $6,707 (2025) |
| Deeds & Mortgages | Aug 2023 Transfer Aug 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 035-013-180 |
| Primary APN | 035-013-180 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,040 sqft Living Area |
| Gross Area | 2,240 sqft |
| 1st Floor Area | 1,240 sqft |
| Attic | Attic |
| Attic Area | 200 sqft |
| Family Room | Family Room |
| Year Built | Built 1936 |
|---|---|
| Effective Year Built | Effective 1936 |
| Lot Area | 5,288 sqft (0.121 acres) |
| Lot Dimensions | 113 ft deep x 47 ft wide |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 820 10TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1805 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R20000 |
| Legal Description | LOT 25 BLOCK 27 RESUB OF PTN OF BLKS 24 TO 28 OF RESUB OF BLKS 5 TO 10 16 31 EAST SAN MATEO RSM 21/47 CITY OF SAN MATEO |
| Legal Subdivision | EAST SAN MATEO |
| Legal Block | 27,24 |
| Legal Lot Number | 25 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 607600 |
820 10th Ave is owner-occupied and held in a trust since August 2023.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 820 10TH AVE, SAN MATEO, CA 94402-1805 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Aug 3, 2023 | Intrafamily Transfer, Transfer |
| Aug 3, 2023 | Affidavit of Death of Joint Tenant, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Aug 2, 2023 |
| Transfer Doc | 0000037206 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Aug 3, 2023 |
| Property Address | 820 10TH AVE, SAN MATEO, CA 94402-1805 |
| Document Number | 0000037206 |
| Map Reference | MB 71 PG 46&47 |
| Instrument Date | Aug 2, 2023 |
| Instrument | 2023-037206 |
| Transaction Type | Transfer |
| Record Updated | Sep 1, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 820 10TH AVE, SAN MATEO, CA 94402-1805 |
| Document Type | Affidavit of Death of Joint Tenant |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Aug 3, 2023 |
| Property Address | 820 10TH AVE, SAN MATEO, CA 94402-1805 |
| Document Number | 0000037205 |
| Map Reference | MB 21 PG 46&47 |
| Instrument Date | Aug 2, 2023 |
| Instrument | 2023-037205 |
| Transaction Type | Transfer |
| Record Updated | Sep 1, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 820 10TH AVE, SAN MATEO, CA 94402-1805 |
The 2025 property tax bill for 820 10th Ave was $6,707 with a homeowner's exemption.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | San Mateo City |
| Elementary School District | San Mateo-Foster City Elementary School District (KG - 08) |
| Secondary School District | San Mateo Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $422,802 (+2%) Land $134,655 Building $288,147 | ||
| 2025 | $6,707.00 Homeowner's exemption | $414,513 Land $132,015 Building $282,498 | |
| 2023 | $6,984.00 (+10.02%) Homeowner's exemption | $398,419 Land $126,890 Building $271,529 | $1,807,650 |
| 2022 | $6,348.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 820 10th Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2010.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 4 in force |
| Nearby Flood Claims | 1 (2010) |
| Most Recent Claim | Feb 2010 · rainfall accumulation |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
The area around 820 10th Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CALIFORNIA WATER SERVICE - SAN MATEO private · serves 103,536 people · EPA ID CA4110008 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Mar 2025 |
| Lead | 4 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 915 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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