San Mateo County property record for 20 del Monte Pl, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,480 sqft · built 1951 |
| Lot Size | 0.332 acres (14,442 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $363,000 (Feb 1995) |
| Tax Bill | $8,236 (2025) |
| Deeds & Mortgages | Apr 2026 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 039-402-160 |
| Primary APN | 039-402-160 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,480 sqft Living Area |
| 1st Floor Area | 1,200 sqft |
| Family Room | Family Room |
| Study | Study |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1951 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Construction Type | Wood |
| Roof Material | Tar & Gravel |
| Lot Area | 14,442 sqft (0.332 acres) |
| Lot Dimensions | 140 ft deep x 100 ft wide |
| Garage Area | 590 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 20 DEL MONTE PL |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-3872 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT E HILLSDALE UNIT NO 4A RESUB OF LOTS 10 11 13 & 14 16 TO20 INC 24 & 34 TO 43 INC BLOCK 5 RSM 32/43 CITY OF SAN MATEO |
| Legal Subdivision | HILLSDALE UNIT NO 4A RESUB |
| Legal Block | 5 |
| Legal Lot Number | E,10 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3009 |
| Census Tract | 607300 |
20 del Monte Pl is owner-occupied and held in a trust since November 2010.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 20 DEL MONTE PL, SAN MATEO, CA 94403-3872 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable 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 | Feb 24, 1995 · Amount on File |
| Deed Sale | Feb 24, 1995 · Amount on File |
| Deed Document Number | 199518913 |
| Last Transfer Date | Nov 12, 2010 |
| Transfer Doc | 0000139760 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Apr 10, 2026 |
| Property Address | 20 DEL MONTE PL, SAN MATEO, CA 94403-3872 |
| Document Number | 0000018882 |
| Instrument Date | Apr 10, 2026 |
| Instrument | 202618882 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 20 DEL MONTE PL, SAN MATEO, CA 94403-3872 |
| Investor | Possibly a Property Investor |
The 2025 property tax bill for 20 del Monte Pl was $8,236, up 3.6% 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 | $621,896 (+2%) Land $310,948 Building $310,948 | ||
| 2025 | $8,236.00 (+3.65%) Homeowner's exemption | $609,702 Land $304,851 Building $304,851 | |
| 2024 | $7,946.00 (-6.51%) | ||
| 2023 | $8,499.00 (+1.07%) Homeowner's exemption | $586,028 Land $293,014 Building $293,014 | $1,670,760 |
| 2022 | $8,409.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 20 del Monte Pl in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2009.
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 | 2 (2009–2017) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, And Mudslides |
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 20 del Monte Pl 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 732 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 · Fiber in parts of the area | 1,500 / 50 |
May also be available: Etheric Networks, T-Mobile.
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