San Mateo County property record for 257 E 40th Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,390 sqft · built 1950 |
| Lot Size | 0.16 acres (6,963 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $750,000 (Sep 2022) |
| Tax Bill | $8,654 (2025) |
| Deeds & Mortgages | Sep 2022 Sale & Mortgage Feb 2019 Transfer |
| Flood Zone | Zone X (reduced by levee) |
| APN | 040-197-130 |
| Primary APN | 040-197-130 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,390 sqft Living Area |
| 1st Floor Area | 1,080 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Foundation Type | Concrete |
| Roof Material | Composition Shingle |
| Lot Area | 6,963 sqft (0.16 acres) |
| Lot Dimensions | 100 ft deep x 75 ft wide |
| View / Lot | Corner |
| Garage Area | 310 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 257 E 40TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-3661 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 13 BLOCK 23 SAN MATEO VILLAGE UNIT NO 3 RSM 30/12 13 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO VILLAGE UNIT NO 3 |
| Legal Block | 23 |
| Legal Lot Number | 13 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3009 |
| Census Tract | 608501 |
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 | 257 E 40TH AVE, SAN MATEO, CA 94403-3661 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Sep 27, 2022 | Grant Deed, Transfer · Commercial Mortgage CAMERON AND MARILYN DODGE RLT |
| Feb 13, 2019 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 27, 2022 · Amount on Record |
| Deed Sale | Sep 27, 2022 · Amount on Record |
| Prior Sale | Jan 4, 1994 · Amount on Record |
| Deed Document Number | 202269659 |
| Prior Transfer Date | Feb 11, 2019 |
| Prior Transfer Doc | 0000010081 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Sep 27, 2022 |
| Property Address | 257 E 40TH AVE, SAN MATEO, CA 94403-3661 |
| Document Number | 0000069659 |
| Map Reference | MB 30 PG 12&13 |
| Instrument Date | Sep 19, 2022 |
| Instrument | 2022-069659 |
| Transaction Type | Transfer |
| Record Updated | Oct 19, 2022 |
| Title Company | FIDELITY NATIONAL TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $4,575.00 |
| Amount Accuracy | Rounded by County |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 257 E 40TH AVE, SAN MATEO, CA 94403-3661 |
| Document Number | 0000069660 |
|---|---|
| Date | Sep 27, 2022 |
| Instrument | 2022-069660 |
| Name | CAMERON AND MARILYN DODGE RLT |
|---|---|
| Type | Private Party |
| Address | 3914 ALMA AVE, REDDING, CA 96002 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Feb 13, 2019 |
| Property Address | 257 E 40TH AVE, SAN MATEO, CA 94403-3661 |
| Document Number | 0000010081 |
| Instrument Date | Feb 11, 2019 |
| Instrument | 10081 |
| Transaction Type | Transfer |
| Record Updated | Mar 1, 2019 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 257 E 40TH AVE SAN MATEO CA 944033661, SAN MATEO, CA 94403-3661 |
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 | $577,145 (+2%) Land $322,781 Building $254,364 | ||
| 2025 | $8,654.00 (+3.31%) Homeowner's exemption | $565,831 (+4.04%) Land $316,453 Building $249,378 | |
| 2023 | $8,377.00 (+5.96%) Homeowner's exemption | $543,864 Land $304,167 Building $239,697 | $612,000 |
| 2022 | $7,906.00 |
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 reduced by levee · depends on levee performance |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 13 policies |
| Nearby Flood Policies | 13 in force |
| Nearby Flood Claims | 2 (1979–2010) |
| Claims Outside the SFHA | 1 of 2 |
| Most Recent Claim | Jan 2010 · other causes |
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 734 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| 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 |
| Starlink Satellite | 280 / 30 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Sonic Telecom.
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