San Mateo County property record for 540 Maple Ave, San Bruno, CA 94066
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,310 sqft · built 1938 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $260,000 (Feb 1999) |
| Tax Bill | $7,766 (2025) |
| Deeds & Mortgages | Jan 2022 Mortgage Jan 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 020-232-270 |
| Primary APN | 020-232-270 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,310 sqft Living Area |
| 1st Floor Area | 860 sqft |
| 2nd Floor Area | 1,450 sqft |
| Family Room | Family Room |
| Year Built | Built 1938 |
|---|---|
| Effective Year Built | Effective 1938 |
| Exterior Material | Other |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 5,000 sqft (0.115 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Garage Area | 420 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 540 MAPLE AVE |
|---|---|
| City | SAN BRUNO |
| State | CA |
| Zip | 94066-4148 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOTS 52 & 53 BLOCK 14 HUNTINGTON PARK 2ND ADD RSM 5/37 |
| Legal Subdivision | HUNTINGTON PARK 2ND ADD |
| Legal Block | 14 |
| Legal Lot Number | 52,53 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 604000 |
540 Maple Ave is owned and occupied by two individuals who bought it in February 1999.
Source: San Mateo County records, as of October 9, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 540 MAPLE AVE, SAN BRUNO, CA 94066-4148 |
| 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.
| Date | Document |
|---|---|
| Jan 19, 2022 | Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE AFFINITY LLC |
| Jan 14, 2020 | Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE AFFINITY LLC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 25, 1999 · Amount on File |
| Deed Sale | Feb 25, 1999 · Amount on File |
| Deed Document Number | 199932892 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 540 MAPLE AVE, SAN BRUNO, CA 94066-4148 |
| Transaction Type | Mortgage |
| Record Updated | Feb 14, 2022 |
| Title Company | CORNERSTONE TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 540 MAPLE AVE, SAN BRUNO, CA 94066-4148 |
| Document Number | 0000004631 |
|---|---|
| Date | Jan 19, 2022 |
| Instrument | 2022-004631 |
| Name | GUARANTEED RATE AFFINITY LLC |
|---|---|
| Type | Mortgage Company |
| Address | CHICAGO, IL 60613 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 181 Months |
| Due | Feb 1, 2037 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 540 MAPLE AVE, SAN BRUNO, CA 94066-4148 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0000003232 |
|---|---|
| Date | Jan 14, 2020 |
| Instrument | 2020-003232 |
| Name | GUARANTEED RATE AFFINITY LLC |
|---|---|
| Type | Mortgage Company |
| Address | CHICAGO, IL 60613 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 181 Months |
| Due | Feb 1, 2035 |
The 2025 property tax bill for 540 Maple Ave was $7,766.
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 | $620,712 (+2%) Land $207,866 Building $412,846 | ||
| 2025 | $7,766.00 | $608,543 Land $203,791 Building $404,752 | |
| 2023 | $6,482.00 (+1.15%) | $584,916 Land $195,879 Building $389,037 | $858,780 |
| 2022 | $6,408.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 540 Maple Ave in Zone X, an area of minimal flood risk.
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 | 1 in force |
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 540 Maple 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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