San Mateo County property record for 1120 Irwin St, Belmont, CA 94002
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,090 sqft · built 1947 |
| Lot Size | 0.115 acres (5,001 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $3,246 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 040-341-090 |
| Primary APN | 040-341-090 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,090 sqft Living Area |
| Gross Area | 1,380 sqft |
| 1st Floor Area | 1,090 sqft |
| Basement Area | 290 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 5,001 sqft (0.115 acres) |
| Lot Dimensions | 92 ft deep x 54 ft wide |
| Garage Type | Basement |
| Garage Area | 290 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 1120 IRWIN ST |
|---|---|
| City | BELMONT |
| State | CA |
| Zip | 94002-2837 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 9 BLOCK 4 HOMEVIEW MAP NO 1 RSM 25/56 57 CITY OF BELMONT |
| Legal Subdivision | HOMEVIEW MAP NO 1 |
| Legal Block | 4 |
| Legal Lot Number | 9 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2021 |
| Census Tract | 608600 |
1120 Irwin St is held in a trust since October 2002.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 531 LANYARD DR, REDWOOD CITY, CA 94065-1008 |
| 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.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Oct 28, 2002 |
| Transfer Doc | 0000225901 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 1120 Irwin St was $3,246.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| Municipality | Belmont City |
| County | San Mateo County |
| Elementary School District | Belmont-Redwood Shores Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $135,772 (+2%) Land $37,674 Building $98,098 | ||
| 2025 | $3,246.00 | $133,111 Land $36,936 Building $96,175 | |
| 2023 | $3,058.00 (+1.7%) | $127,944 Land $35,502 Building $92,442 | $1,134,900 |
| 2022 | $3,007.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 1120 Irwin St in Zone X, an area of moderate flood risk.
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 10 policies |
| Nearby Flood Policies | 10 in force |
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 1120 Irwin St 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 | MID-PENINSULA WATER DISTRICT serves 31,059 people · EPA ID CA4110001 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Feb 2025 |
| Lead | Under 1 ppb (2022–2024) 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 512 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 · Fiber in parts of the area | 2,000 / 250 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, GeoLinks, Sonic Telecom, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures