San Mateo County property record for 421 Hillcrest Rd, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 3,324 sqft · built 2016 |
| Lot Size | 0.225 acres (9,806 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $3,900,000 (Nov 2018) |
| Tax Bill | $51,819 (2025) |
| Deeds & Mortgages | Jul 2026 Sale Dec 2023 Transfer + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 031-091-020 |
| Primary APN | 031-091-020 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 3,324 sqft Living Area |
| Gross Area | 3,894 sqft |
| 1st Floor Area | 1,630 sqft |
| 2nd Floor Area | 1,314 sqft |
| Basement Area | 950 sqft |
| Finished Basement | 380 sqft |
| Unfinished Basement | 570 sqft |
| Family Room | Family Room |
| Year Built | Built 2016 |
|---|---|
| Effective Year Built | Effective 2016 |
| Lot Area | 9,806 sqft (0.225 acres) |
| Lot Dimensions | 190 ft deep x 51 ft wide |
| Garage Type | Attached |
| Garage Area | 571 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 421 HILLCREST RD |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1124 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1000A |
| Legal Description | SLY 64 FT OF THE NLY 128 FT OF LOT 304 SAN MATEO PARK SUB NO3 RSM A/68 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO PARK |
| Legal Lot Number | 304 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 605800 |
421 Hillcrest Rd is held in a trust since November 2018.
Source: San Mateo County records, as of September 1, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 615 DEVON DR, HILLSBOROUGH, CA 94010-6638 |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jul 17, 2026 | Deed, Transfer NONE LISTED ON DOCUMENT |
| Dec 11, 2023 | Intrafamily Transfer, Transfer |
| Jul 7, 2020 | Deed of Trust, Mortgage · Conventional Mortgage CITIBANK NA |
| Nov 9, 2018 | Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 9, 2018 · Amount on File |
| Deed Sale | Nov 9, 2018 · Amount on File |
| Prior Sale | Nov 8, 2016 · Amount on File |
| Deed Document Number | 201887639 |
| Prior Transfer Date | Jun 25, 2003 |
| Prior Transfer Doc | 0000219174 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jul 17, 2026 |
| Property Address | 421 HILLCREST RD, SAN MATEO, CA 94402-1124 |
| Document Number | 0000040878 |
| Instrument Date | Jul 17, 2026 |
| Instrument | 202640878 |
| Transaction Type | Transfer |
| Record Updated | Sep 1, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Trust |
| Address | 615 DEVON DR, HILLSBOROUGH, CA 94010-6638 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Dec 11, 2023 |
| Property Address | 421 HILLCREST RD, SAN MATEO, CA 94402-1124 |
| Document Number | 0000065365 |
| Map Reference | MB A PG 68 |
| Instrument Date | Dec 8, 2023 |
| Instrument | 2023-065365 |
| Transaction Type | Transfer |
| Record Updated | Jan 11, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 459 ROBLAR AVE, HILLSBOROUGH, CA 94010-6849 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 421 HILLCREST RD, SAN MATEO, CA 94402-1124 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | NORTH AMERICAN TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000064051 |
|---|---|
| Date | Jul 7, 2020 |
| Instrument | 2020-064051 |
| Name | CITIBANK NA |
|---|---|
| Type | Bank |
| Address | O FALLON, MO 63368 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Aug 1, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.75% |
| Type Change Date | Aug 1, 2030 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 7.75% |
| Index | 1-Year LIBOR |
| Max Rate | 7.75% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Nov 9, 2018 |
| Property Address | 421 HILLCREST RD, SAN MATEO, CA 94402-1124 |
| Document Number | 0000087639 |
| Map Reference | MB3 PG87 |
| Instrument Date | Oct 25, 2018 |
| Instrument | 2018-087639 |
| Transaction Type | Transfer |
| Record Updated | Aug 9, 2021 |
| Title Company | NORTH AMERICAN TITLE CO INC |
| 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 |
|---|---|
| Address | 00000 |
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 421 HILLCREST RD, SAN MATEO, CA 94402-1124 |
| Document Number | 0000087640 |
|---|---|
| Date | Nov 9, 2018 |
| Instrument | 2018-087640 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2048 |
The 2025 property tax bill for 421 Hillcrest Rd was $51,819.
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 | $4,437,529 (+2%) Land $2,730,787 Building $1,706,742 | ||
| 2025 | $51,819.00 | $4,350,520 Land $2,677,243 Building $1,673,277 | |
| 2023 | $48,764.00 (+1.26%) | $4,181,586 Land $2,573,284 Building $1,608,302 | $3,204,450 |
| 2022 | $48,158.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 421 Hillcrest Rd in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1999.
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 | 2 in force |
| Nearby Flood Claims | 3 (1999–2013) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Jan 2013 · 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.
Wildfire risk around 421 Hillcrest Rd is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 354 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 |
May also be available: Astound Broadband, Etheric Networks, Sonic Telecom, Verizon.
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