San Mateo County property record for 159 W 40th Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,638 sqft · built 1941 |
| Lot Size | 0.121 acres (5,275 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $2,100,000 (May 2023) |
| Tax Bill | $26,417 (2025) |
| Deeds & Mortgages | May 2023 Sale & Mortgage Jul 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 042-233-040 |
| Primary APN | 042-233-040 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,638 sqft Living Area |
| 1st Floor Area | 1,224 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1941 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Roof Material | Tile |
| Lot Area | 5,275 sqft (0.121 acres) |
| Lot Dimensions | 95 ft deep x 55 ft wide |
| Garage Area | 330 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 159 W 40TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-4516 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 4 BLOCK 6 SAN MATEO KNOLLS RSM 22/8 9 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO KNOLLS |
| Legal Block | 6 |
| Legal Lot Number | 4 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2016 |
| Census Tract | 607200 |
Source: San Mateo County records, as of July 15, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 159 W 40TH AVE, SAN MATEO, CA 94403-4516 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| May 31, 2023 | Grant Deed, Transfer · Commercial Mortgage JEROME GOLDFEIN ETAL |
| Jul 20, 2017 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 31, 2023 · Amount on Record |
| Deed Sale | May 31, 2023 · Amount on Record |
| Prior Sale | Aug 23, 2016 · Amount on Record |
| Deed Document Number | 202325652 |
| Prior Transfer Date | Dec 24, 1997 |
| Prior Transfer Doc | 0000173956 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | May 31, 2023 |
| Property Address | 159 W 40TH AVE, SAN MATEO, CA 94403-4516 |
| Document Number | 0000025652 |
| Map Reference | MB 22 PG 8 |
| Instrument Date | May 15, 2023 |
| Instrument | 2023-025652 |
| Transaction Type | Transfer |
| Record Updated | Jun 20, 2023 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $12,810.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 159 W 40TH AVE, SAN MATEO, CA 94403-4516 |
| Document Number | 0000025653 |
|---|---|
| Date | May 31, 2023 |
| Instrument | 2023-025653 |
| Name | JEROME GOLDFEIN ETAL |
|---|---|
| Type | Private Party |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jul 20, 2017 |
| Property Address | 159 W 40TH AVE, SAN MATEO, CA 94403-4516 |
| Document Number | 0000062199 |
| Instrument Date | Jul 19, 2017 |
| Instrument | 62199 |
| Transaction Type | Transfer |
| Record Updated | Aug 10, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 159 W 40TH AVE SAN MATEO CA 944034516, SAN MATEO, CA 94403-4516 |
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 | $2,228,536 (+2%) Land $1,485,691 Building $742,845 | ||
| 2025 | $26,417.00 (+24.4%) | $2,184,840 (+28.01%) Land $1,456,560 Building $728,280 | |
| 2023 | $21,236.00 (+0.78%) Homeowner's exemption | $1,706,741 Land $1,260,535 Building $446,206 | $1,826,910 |
| 2022 | $21,072.00 |
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 1 (1986) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 1986 · Severe Storms & Flooding |
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 | 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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures