San Mateo County property record for 426 27th Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,860 sqft · built 1945 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $2,525,000 (Oct 2025) |
| Tax Bill | $5,571 (2025) |
| Deeds & Mortgages | Oct 2025 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 039-331-160 |
| Primary APN | 039-331-160 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,860 sqft Living Area |
| 1st Floor Area | 980 sqft |
| Family Room | Family Room |
| Year Built | Built 1945 |
|---|---|
| Effective Year Built | Effective 1945 |
| Lot Area | 6,000 sqft (0.138 acres) |
| Lot Dimensions | 120 ft deep x 50 ft wide |
| Garage Area | 180 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 426 27TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-2402 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 16 BLOCK 7 SAN MATEO TERRACE MAP NO 3 RSM 21/76 77 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO TERRACE MAP NO 3 |
| Legal Block | 7 |
| Legal Lot Number | 16 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 607400 |
426 27th Ave is held in a trust since October 2025.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 418 TEE DR, HEALDSBURG, CA 95448-5101 |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 9, 2025 · Amount on File |
| Deed Sale | Oct 9, 2025 · Amount on File |
| Deed Document Number | 202553442 |
| Prior Transfer Date | Oct 2, 2025 |
| Prior Transfer Doc | 0000053441 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Oct 9, 2025 |
| Property Address | 426 27TH AVE, SAN MATEO, CA 94403-2402 |
| Document Number | 0000053442 |
| Map Reference | MB 21 PG 76&77 |
| Instrument Date | Oct 1, 2025 |
| Instrument | 2025-053442 |
| Transaction Type | Transfer |
| Record Updated | Apr 2, 2026 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $15,402.50 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 426 27TH AVE, SAN MATEO, CA 94403-2402 |
| Document Number | 0000053443 |
|---|---|
| Date | Oct 9, 2025 |
| Instrument | 2025-053443 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2055 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.25% |
| Type Change Date | Nov 1, 2032 |
| Change Frequency | 6 Months |
| Min Rate At Change | 3.25% |
| Max Rate At Change | 7.25% |
| Index | SOFR Average 30-Day |
| Max Rate | 10.2% |
The 2025 property tax bill for 426 27th Ave was $5,571, down 0.9% from the year before.
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 | $2,525,000 (+591.26%) Land $1,725,000 Building $800,000 | ||
| 2025 | $5,571.00 (-0.89%) Homeowner's exemption | $365,275 Land $192,665 Building $172,610 | |
| 2024 | $5,621.00 (+2.24%) | ||
| 2023 | $5,498.00 (-0.67%) Homeowner's exemption | $351,093 Land $185,185 Building $165,908 | $1,541,520 |
| 2022 | $5,535.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 426 27th Ave in Zone X, an area of minimal flood risk, though there have been 4 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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 4 (1978–1986) |
| 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.
The area around 426 27th 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 799 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 |
May also be available: Etheric Networks, GeoLinks, T-Mobile, Verizon.
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