San Mateo County property record for 21 Hilltop Rd, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,480 sqft · built 1924 |
| Lot Size | 0.103 acres (4,500 sqft) |
| Owner | Company Name on Record |
| Last Sale | $358,500 (May 1996) |
| Tax Bill | $9,196 (2025) |
| Deeds & Mortgages | Jul 2017 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 032-073-260 |
| Primary APN | 032-073-260 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,480 sqft Living Area |
| 1st Floor Area | 1,040 sqft |
| Family Room | Family Room |
| Study | Study |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1924 |
|---|---|
| Effective Year Built | Effective 1924 |
| Architectural Style | Bungalow |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 4,500 sqft (0.103 acres) |
| Lot Dimensions | 100 ft deep x 45 ft wide |
| Garage Area | 210 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 21 HILLTOP RD |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1146 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10010 |
| Legal Description | W 15 FT OF LOT 6 BLOCK 1 E 30 FT OF LOT 7 BLOCK 1 SUB OF LOTS 32 & 35 SAN MATEO PARK RSM 5/31 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO PARK |
| Legal Block | 1 |
| Legal Lot Number | 32 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 605800 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 21 HILLTOP RD, SAN MATEO, CA 94402-1146 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 3, 1996 · Amount on Record |
| Deed Sale | May 3, 1996 · Amount on Record |
| Deed Document Number | 199653832 |
| Last Transfer Date | Dec 18, 2012 |
| Transfer Doc | 0000194467 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 21 HILLTOP RD, SAN MATEO, CA 94402-1146 |
| Document Number | 0000071187 |
| Instrument Date | Jul 17, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Aug 24, 2018 |
| Title Company | TITLE SERVICE AND LIAISON COMPANIES, INDECOMM GLOBAL SVCS |
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 21 HILLTOP RD SAN MATEO CA 944021146, SAN MATEO, CA 94402-1146 |
| Document Number | 0000071187 |
|---|---|
| Date | Aug 15, 2017 |
| Instrument | 71187 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | TAMPA, FL 33634 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
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 | $659,718 (+2%) Land $303,722 Building $355,996 | ||
| 2025 | $9,196.00 (+4.17%) Homeowner's exemption | $646,784 (+4.04%) Land $297,767 Building $349,017 | |
| 2023 | $8,828.00 (+2.89%) Homeowner's exemption | $621,672 Land $286,205 Building $335,467 | $1,249,380 |
| 2022 | $8,580.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 97% of the US · lower than 97.8% 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 713 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 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Verizon.
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