San Mateo County property record for 550 Willow Ave, Half Moon Bay, CA 94019
| Property Type | Triplex |
|---|---|
| Details | 7 bd · 6 ba · 4,910 sqft · built 1978 |
| Lot Size | 0.172 acres (7,500 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $11,962 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-141-570 |
| Primary APN | 056-141-570 |
|---|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 6 Baths |
| Total Rooms | 13 Rooms |
| Units | 3 Units |
| Stories | 2 Stories |
| Building Area | 4,910 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1978 |
| Architectural Style | Triplex |
| Lot Area | 7,500 sqft (0.172 acres) |
| Lot Dimensions | 100 ft deep x 75 ft wide |
| Parking Spaces | 6 Parking Spaces |
| Street Address | 550 WILLOW AVE |
|---|---|
| City | HALF MOON BAY |
| State | CA |
| Zip | 94019-1648 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Local Zoning Code | R30000 |
| Legal Description | LOTS 12 13 & 14 BLK 7 PILARCITOS PARK RSM 3/94 |
| Legal Subdivision | PILARCITOS PARK |
| Legal Block | 7 |
| Legal Lot Number | 12 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | HALF MOON BAY |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 613501 |
550 Willow Ave, a triplex, is owned by an individual.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | PO BOX 584, EL GRANADA, CA 94018-0584 |
| Owner Type | Individual |
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 |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 550 Willow Ave was $11,962.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | Half Moon Bay City |
| Unified School District | Cabrillo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $669,909 (+2%) Land $200,966 Building $468,943 | |
| 2025 | $11,962.00 | $656,775 Land $197,026 Building $459,749 |
| 2023 | $10,725.00 (+4.82%) | $631,274 Land $189,376 Building $441,898 |
| 2022 | $10,232.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 550 Willow 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 |
| Flood Insurance Cost | Premium on File median of 12 policies |
| Nearby Flood Policies | 12 in force |
| Nearby Flood Claims | 1 (1998) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 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.
Wildfire risk around 550 Willow Ave is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect 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 | COASTSIDE COUNTY WATER DISTRICT serves 19,033 people · EPA ID CA4110011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jul 2023 |
| Lead | 2 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 274 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Cruzio Fixed Wireless | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Verizon.
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