San Mateo County property record for 1000 Irwin St, Belmont, CA 94002
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 1,674 sqft · built 1951 |
| Lot Size | 0.136 acres (5,921 sqft) |
| Owner | Company Name on File |
| Tax Bill | $9,610 (2025) |
| Deeds & Mortgages | Feb 2017 Transfer |
| Flood Zone | Zone X (moderate risk) |
| APN | 040-341-030 |
| Primary APN | 040-341-030 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,674 sqft Living Area |
| 1st Floor Area | 1,674 sqft |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1951 |
| Architectural Style | Duplex Single |
| Lot Area | 5,921 sqft (0.136 acres) |
| Lot Dimensions | 95 ft deep x 62 ft wide |
| View / Lot | Corner |
| Garage Type | Detached |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 1000 IRWIN ST |
|---|---|
| City | BELMONT |
| State | CA |
| Zip | 94002-2835 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R20000 |
| Legal Description | LOT 3 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 | 3 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2021 |
| Census Tract | 608600 |
1000 Irwin St, a duplex, is owned by a company that acquired it in December 2016.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1221 S EL CAMINO REAL, 111, SAN MATEO, CA 94402-2995 |
| Owner Type | Company |
| Vesting | Partnership |
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 | Name on Deed |
|---|---|
| Last Transfer Date | Dec 21, 2016 |
| Transfer Doc | 0000014709 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Feb 15, 2017 |
| Property Address | 1000 IRWIN ST, BELMONT, CA 94002-2835 |
| Document Number | 0000014709 |
| Instrument Date | Dec 21, 2016 |
| Instrument | 14709 |
| Transaction Type | Transfer |
| Record Updated | Mar 9, 2017 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Limited Partnership |
| Address | 1221 S EL CAMINO REAL #111 SAN MATEO CA 944022995, 111, SAN MATEO, CA 94402-2995 |
The 2025 property tax bill for 1000 Irwin St was $9,610.
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 |
|---|---|---|
| 2026 | $529,308 (+2%) Land $244,657 Building $284,651 | |
| 2025 | $9,610.00 | $518,932 Land $239,861 Building $279,071 |
| 2023 | $8,953.00 (+10.59%) | $498,786 Land $230,549 Building $268,237 |
| 2022 | $8,096.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1000 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 1000 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