San Mateo County property record for 4030 Bayview Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,460 sqft · built 1940 |
| Lot Size | 0.117 acres (5,110 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $2,300,000 (Feb 2026) |
| Tax Bill | $19,876 (2025) |
| Deeds & Mortgages | Feb 2026 Sale May 2017 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 042-222-180 |
| Primary APN | 042-222-180 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,460 sqft Living Area |
| Gross Area | 1,820 sqft |
| 1st Floor Area | 1,460 sqft |
| Basement Area | 360 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 5,110 sqft (0.117 acres) |
| Lot Dimensions | 85 ft deep x 58 ft wide |
| Garage Type | Basement |
| Garage Area | 360 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 4030 BAYVIEW AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-4310 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 18 BLOCK 10 SAN MATEO KNOLLS RSM 22/8 9 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO KNOLLS |
| Legal Block | 10 |
| Legal Lot Number | 18 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 607100 |
4030 Bayview Ave is owned and occupied by two individuals who bought it in February 2026.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4030 BAYVIEW AVE, SAN MATEO, CA 94403-4310 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
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 |
|---|---|
| Feb 17, 2026 | Grant Deed, Transfer TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| May 24, 2017 | Deed of Trust, Mortgage · Line of Credit SAN FRANCISCO POLICE CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 17, 2026 · Amount on File |
| Deed Sale | Feb 17, 2026 · Amount on File |
| Prior Sale | Feb 20, 2015 · Amount on File |
| Deed Document Number | 20267761 |
| Prior Transfer Date | Jun 11, 1997 |
| Prior Transfer Doc | 0000075497 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Feb 17, 2026 |
| Property Address | 4030 BAYVIEW AVE, SAN MATEO, CA 94403-4310 |
| Document Number | 0000007761 |
| Instrument Date | Feb 13, 2026 |
| Instrument | 2026-007761 |
| Transaction Type | Transfer |
| Record Updated | Mar 23, 2026 |
| Title Company | TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Amount | Amount on Record |
|---|---|
| Tax | $2,530.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 4030 BAYVIEW AVE, SAN MATEO, CA 94403-4310 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 4030 BAYVIEW AVE, SAN MATEO, CA 94403-4310 |
| Document Number | 0000047210 |
| Instrument Date | May 24, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Apr 5, 2018 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 4030 BAYVIEW AVE SAN MATEO CA 944034310, SAN MATEO, CA 94403-4310 |
| Document Number | 0000047210 |
|---|---|
| Date | Jun 1, 2017 |
| Instrument | 47210 |
| Name | SAN FRANCISCO POLICE CU |
|---|---|
| Type | Credit Union |
| Address | SAN FRANCISCO, CA 94122 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | May 31, 2047 |
| Rate Type | Adjustable Rate |
|---|
The 2025 property tax bill for 4030 Bayview Ave was $19,876.
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 | $1,636,550 (+2%) Land $818,275 Building $818,275 | ||
| 2025 | $19,876.00 Homeowner's exemption | $1,604,462 Land $802,231 Building $802,231 | |
| 2023 | $19,110.00 (+1.43%) Homeowner's exemption | $1,542,160 Land $771,080 Building $771,080 | $1,992,060 |
| 2022 | $18,841.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4030 Bayview 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 4030 Bayview 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 785 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| 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 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile.
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