San Mateo County property record for 609 Macarthur Ave, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,953 sqft · built 1948 |
| Lot Size | 0.148 acres (6,440 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $10,940 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 034-326-040 |
| Primary APN | 034-326-040 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,953 sqft Living Area |
| 1st Floor Area | 1,527 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Ranch |
| Lot Area | 6,440 sqft (0.148 acres) |
| Lot Dimensions | 92 ft deep x 70 ft wide |
| Garage Area | 470 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 609 MACARTHUR AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-3324 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | NELY 20 FT OF LOT 5 & SWLY 50 FT OF LOT 6 BLOCK 2 ARAGON TERRACE RSM 27/11 CITY OF SAN MATEO |
| Legal Subdivision | ARAGON TERRACE |
| Legal Block | 2 |
| Legal Lot Number | 5,6 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 606700 |
609 Macarthur Ave is owner-occupied and held in a trust since September 2016.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 609 MACARTHUR AVE, SAN MATEO, CA 94402-3324 |
| Occupancy | Owner Occupied |
| 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 | Sep 16, 2016 |
| Transfer Doc | 0000098380 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 609 MACARTHUR AVE, SAN MATEO, CA 94402-3324 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | WFG NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 609 MACARTHUR AVE, SAN MATEO, CA 94402-3324 |
| Document Number | 0000105734 |
|---|---|
| Date | Oct 5, 2020 |
| Instrument | 2020-105734 |
| Name | PATELCO CU |
|---|---|
| Type | Credit Union |
| Address | DUBLIN, CA 94568 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 120 Months |
| Due | Oct 1, 2030 |
The 2025 property tax bill for 609 Macarthur Ave was $10,940 with a homeowner's exemption.
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 | $878,664 (+2%) Land $400,900 Building $477,764 | ||
| 2025 | $10,940.00 Homeowner's exemption | $861,437 Land $393,040 Building $468,397 | |
| 2023 | $11,375.00 (+2.68%) Homeowner's exemption | $827,990 Land $377,779 Building $450,211 | $1,913,220 |
| 2022 | $11,078.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 609 Macarthur Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.
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 | 1 in force |
| Nearby Flood Claims | 1 (1998) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Apr 1998 · Severe Winter Storms And Flooding |
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 609 Macarthur Ave 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 374 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 | 1,500 / 50 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Verizon.
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