San Mateo County property record for 839 Walnut Ave, Burlingame, CA 94010
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,180 sqft · built 1909 |
| Lot Size | 0.139 acres (6,059 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $1,597 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 028-133-080 |
| Primary APN | 028-133-080 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,180 sqft Living Area |
| 1st Floor Area | 830 sqft |
| 2nd Floor Area | 350 sqft |
| Family Room | Family Room |
| Year Built | Built 1909 |
|---|---|
| Effective Year Built | Effective 1909 |
| Lot Area | 6,059 sqft (0.139 acres) |
| Lot Dimensions | 127 ft deep x 48 ft wide |
| Garage Area | 390 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 839 WALNUT AVE |
|---|---|
| City | BURLINGAME |
| State | CA |
| Zip | 94010-5009 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 27 BLOCK 3 BURLINGAME PARK NO 4 RSM D/43 |
| Legal Subdivision | BURLINGAME PARK NO 4 |
| Legal Block | 3 |
| Legal Lot Number | 27 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 2 |
| Census Block | 2013 |
| Census Tract | 605300 |
Source: San Mateo County records, as of July 15, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 839 WALNUT AVE, BURLINGAME, CA 94010-5009 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Oct 9, 2014 |
| Transfer Doc | 0000094401 |
| Record Updated | Sep 20, 2026 |
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | Burlingame City |
| Elementary School District | Burlingame 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 | $93,962 (+2%) Land $48,732 Building $45,230 | ||
| 2025 | $1,597.00 (+14.97%) Homeowner's exemption | $92,121 (+4.04%) Land $47,777 Building $44,344 | |
| 2023 | $1,389.00 (+2.06%) Homeowner's exemption | $88,546 Land $45,923 Building $42,623 | $2,120,490 |
| 2022 | $1,361.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 11 individual policies |
| Community Rating System | Class 9 (5% premium discount) |
| Nearby Flood Policies | 32 units insured incl. 21 condo units |
| Nearby Flood Claims | 5 (1997–2021) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | Oct 2021 · 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.
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 | CITY OF BURLINGAME serves 32,453 people · EPA ID CA4110003 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Nov 2024 |
| Lead | 6 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 887 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, GeoLinks.
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