San Mateo County property record for 849 Kathryne Ave, San Mateo, CA 94401
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,300 sqft · built 1949 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,025,000 (Oct 2017) |
| Tax Bill | $15,411 (2025) |
| Deeds & Mortgages | Mar 2021 Mortgage Jul 2020 Mortgage + 1 more |
| Flood Zone | Zone X (reduced by levee) |
| APN | 033-344-240 |
| Primary APN | 033-344-240 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,300 sqft Living Area |
| 1st Floor Area | 820 sqft |
| Family Room | Family Room |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1949 |
| Lot Area | 6,000 sqft (0.138 acres) |
| Lot Dimensions | 120 ft deep x 50 ft wide |
| Garage Area | 240 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 849 KATHRYNE AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94401-3124 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 21 BLOCK 15 SHORE VIEW TRACT MAP NO 8 RSM 30/25 26 27 28CITY OF SAN MATEO |
| Legal Subdivision | SHORE VIEW TRACT MAP NO 8 |
| Legal Block | 15 |
| Legal Lot Number | 21 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 607701 |
849 Kathryne Ave is owned and occupied by two individuals who bought it in October 2017.
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 File |
|---|---|
| Mailing Address | 849 KATHRYNE AVE, SAN MATEO, CA 94401-3124 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Mar 17, 2021 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC |
| Jul 13, 2020 | Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Oct 19, 2017 | Grant Deed, Transfer · Conventional Mortgage STANFORD FCU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 19, 2017 · Amount on File |
| Deed Sale | Oct 19, 2017 · Amount on File |
| Deed Document Number | 201792065 |
| Prior Transfer Date | Oct 11, 1996 |
| Prior Transfer Doc | 0000138701 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 849 KATHRYNE AVE, SAN MATEO, CA 94401-3124 |
| Transaction Type | Mortgage |
| Record Updated | Apr 20, 2021 |
| Title Company | WFT NATIONAL TITLE, WFG NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 849 KATHRYNE AVE, SAN MATEO, CA 94401-3124 |
| Document Number | 0000043188 |
|---|---|
| Date | Mar 17, 2021 |
| Instrument | 2021-043188 |
| Name | QUICKEN LOANS LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 849 KATHRYNE AVE, SAN MATEO, CA 94401-3124 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | WFG NATIONAL TITLE INS CO |
| Name | Verified Name |
|---|
| Document Number | 0000066520 |
|---|---|
| Date | Jul 13, 2020 |
| Instrument | 2020-066520 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | PONTIAC, MI 48341 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Aug 1, 2050 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Oct 19, 2017 |
| Property Address | 849 KATHRYNE AVE, SAN MATEO, CA 94401-3124 |
| Document Number | 0000092065 |
| Map Reference | MAP30 PG25-28 |
| Instrument Date | Oct 12, 2017 |
| Instrument | 2017-092065 |
| Transaction Type | Transfer |
| Record Updated | Aug 9, 2021 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| 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 |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 849 KATHRYNE AVE, SAN MATEO, CA 94401-3124 |
| Document Number | 0000092066 |
|---|---|
| Date | Oct 19, 2017 |
| Instrument | 2017-092066 |
| Name | STANFORD FCU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2047 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 3.37% |
| Type Change Date | Nov 1, 2024 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 5.37% |
| Index | 1-Year LIBOR |
| Max Rate | 8.37% |
The 2025 property tax bill for 849 Kathryne Ave was $15,411 with a homeowner's exemption.
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 | $1,189,594 (+2%) Land $835,618 Building $353,976 | ||
| 2025 | $15,411.00 Homeowner's exemption | $1,166,270 Land $819,234 Building $347,036 | |
| 2023 | $14,572.00 (-1.19%) Homeowner's exemption | $1,120,984 Land $787,423 Building $333,561 | $1,406,970 |
| 2022 | $14,748.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 849 Kathryne Ave in Zone X, where a levee reduces flood risk, though there have been 6 flood claims nearby since 1978.
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 File median of 12 policies |
| Nearby Flood Policies | 12 in force |
| Nearby Flood Claims | 6 (1978–2004) |
| Most Recent Claim | Nov 2004 |
| Claims by Event |
|
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 849 Kathryne 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 300 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
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