San Mateo County property record for 47 E 20th Ave, San Mateo, CA 94403 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,160 sqft · built 1942 |
| Lot Size | 0.092 acres (4,000 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $615,000 (Feb 2010) |
| Tax Bill | $11,270 (2025) |
| Deeds & Mortgages | Apr 2023 Transfer Jun 2019 Transfer |
| Flood Zone | Zone X (moderate risk) |
| APN | 035-232-170 |
| Primary APN | 035-232-170 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,160 sqft Living Area |
| 1st Floor Area | 850 sqft |
| Family Room | Family Room |
| Year Built | Built 1942 |
|---|---|
| Effective Year Built | Effective 1942 |
| Lot Area | 4,000 sqft (0.092 acres) |
| Lot Dimensions | 80 ft deep x 50 ft wide |
| View / Lot | Corner |
| Garage Area | 240 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 47 E 20TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-1318 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SELY 50 FT OF LOTS 16 17 BLOCK 9 RESUB OF LOTS 87 88 ETC SAN MATEO CITY HOMESTEAD RSM 16/62 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO CITY HOMESTEAD |
| Legal Block | 9 |
| Legal Lot Number | 16,87 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2030 |
| Census Tract | 607500 |
Source: San Mateo County records · APN 035-232-170
Assessment roll updated July 15, 2026 · Last verified August 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 File |
|---|---|
| Mailing Address | 434 TOPAZ ST, REDWOOD CITY, CA 94062-2936 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Apr 25, 2023 | Intrafamily Transfer, Transfer |
| Jun 26, 2019 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Feb 04, 2010 · Amount on Record |
| Deed Sale | Feb 04, 2010 · Amount on Record |
| Prior Sale | Dec 08, 2009 · Amount on Record |
| Deed Document Number | 201012646 |
| Last Transfer Date | Apr 19, 2023 |
| Transfer Doc | 0000018687 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Apr 25, 2023 |
| Property Address | 47 E 20TH AVE, SAN MATEO, CA 94403-1318 |
| Document Number | 0000018687 |
| Map Reference | MB 16 PG 52 |
| Instrument Date | Apr 19, 2023 |
| Instrument | 2023-018687 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Living Trust |
| Address | 1574 VALOTA RD, REDWOOD CITY, CA 94061-2622 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jun 26, 2019 |
| Property Address | 47 E 20TH AVE, SAN MATEO, CA 94403-1318 |
| Document Number | 0000049353 |
| Instrument Date | Jun 04, 2019 |
| Instrument | 49353 |
| Transaction Type | Transfer |
| Record Updated | Jul 25, 2019 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 434 TOPAZ ST REDWOOD CITY CA 940622936, REDWOOD CITY, CA 94062-2936 |
Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified August 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) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $809,718 (+2%) Land $404,859 Building $404,859 | ||
| 2025 | $11,270.00 (+11.55%) | $793,842 (+4.04%) Land $396,921 Building $396,921 | |
| 2023 | $10,103.00 (-5.73%) | $763,018 Land $381,509 Building $381,509 | $947,250 |
| 2022 | $10,717.00 |
Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060816075002, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Moderate |
| 500-Year Floodplain | Yes |
| Nearest Special Flood Hazard Area | Zone AH, within 100 ft |
| Flood Insurance Cost | Premium on Record median of 15 individual NFIP policies nearby |
| Nearby Flood Policies | 15 in force 10 of 15 on primary residences |
| Nearby Flood Claims | 1 (2022) |
| Most Recent Claim | Dec 2022, river or lake flooding, Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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.
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