San Mateo County property record for 503 Chestnut Ave, San Bruno, CA 94066
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,110 sqft · built 1954 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,460,000 (Aug 2018) |
| Tax Bill | $19,456 (2025) |
| Deeds & Mortgages | Aug 2018 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 020-233-170 |
| Primary APN | 020-233-170 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 2,110 sqft Living Area |
| Gross Area | 3,030 sqft |
| 1st Floor Area | 2,110 sqft |
| Basement Area | 920 sqft |
| Family Room | Family Room |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1954 |
| Lot Area | 5,000 sqft (0.115 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| View / Lot | Corner |
| Garage Type | Basement |
| Garage Area | 920 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 503 CHESTNUT AVE |
|---|---|
| City | SAN BRUNO |
| State | CA |
| Zip | 94066-4125 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOTS 7 & 8 BLOCK 15 HUNTINGTON PARK 2ND ADD RSM 5/37 |
| Legal Subdivision | HUNTINGTON PARK 2ND ADD |
| Legal Block | 15 |
| Legal Lot Number | 7,8 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 604000 |
503 Chestnut Ave is owned and occupied by an individual who bought it in August 2018.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 503 CHESTNUT AVE, SAN BRUNO, CA 94066-4125 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 30, 2018 · Amount on File |
| Deed Sale | Aug 30, 2018 · Amount on File |
| Prior Sale | Jul 7, 2014 · Amount on File |
| Deed Document Number | 201868211 |
| Prior Transfer Date | Dec 17, 2008 |
| Prior Transfer Doc | 0000138019 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Aug 30, 2018 |
| Property Address | 503 CHESTNUT AVE, SAN BRUNO, CA 94066-4125 |
| Document Number | 0000068211 |
| Map Reference | MB5 PG37 |
| Instrument Date | Aug 27, 2018 |
| Instrument | 2018-068211 |
| Transaction Type | Transfer |
| Record Updated | Jul 25, 2022 |
| Title Company | LAWYERS TITLE CO |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 00000 |
| Name | Verified Name |
|---|---|
| Address | 503 CHESTNUT AVE, SAN BRUNO, CA 94066-4125 |
| Document Number | 0000068212 |
|---|---|
| Date | Aug 30, 2018 |
| Instrument | 2018-068212 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Sep 1, 2048 |
| Document Number | 0000068213 |
|---|---|
| Date | Aug 30, 2018 |
| Instrument | 2018-068213 |
| Name | THE PERMANENTE MEDICAL GROUP INC |
|---|---|
| Type | Non-Lending Institution |
| Address | OAKLAND, CA 94612 |
| Amount | Amount on Record |
|---|
The 2025 property tax bill for 503 Chestnut Ave was $19,456.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | San Bruno City |
| Elementary School District | San Bruno Park 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 | $1,661,224 (+2%) Land $837,439 Building $823,785 | ||
| 2025 | $19,456.00 | $1,628,652 Land $821,019 Building $807,633 | |
| 2023 | $17,202.00 (+7.76%) | $1,565,412 Land $789,139 Building $776,273 | $1,513,620 |
| 2022 | $15,963.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 503 Chestnut Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 503 Chestnut 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 | CITY OF SAN BRUNO serves 42,631 people · EPA ID CA4110023 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jul 2024 |
| Lead | Under 1 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 1,064 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile, Verizon.
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