San Mateo County property record for 510 Sonora Ave, El Granada, CA 94018
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,510 sqft · built 1963 |
| Lot Size | 0.126 acres (5,500 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $419,000 (Apr 2000) |
| Tax Bill | $8,652 (2025) |
| Deeds & Mortgages | Jan 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 047-071-140 |
| Primary APN | 047-071-140 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,510 sqft Living Area |
| 1st Floor Area | 1,510 sqft |
| Family Room | Family Room |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1963 |
| Lot Area | 5,500 sqft (0.126 acres) |
| Lot Dimensions | 110 ft deep x 50 ft wide |
| View / Lot | Corner |
| Garage Area | 380 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 510 SONORA AVE |
|---|---|
| City | EL GRANADA |
| State | CA |
| Zip | 94018 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 4 BLOCK 87 SUB NO 8 OF GRANADA RSM 6/65 |
| Legal Subdivision | SUB NO 8 OF GRANADA |
| Legal Block | 87 |
| Legal Lot Number | 4 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | HALF MOON BAY |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 613502 |
510 Sonora Ave is held in a trust since December 2016.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | PO BOX 2425, EL GRANADA, CA 94018-2425 |
| 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 Sale | Apr 27, 2000 · Amount on File |
| Deed Sale | Apr 27, 2000 · Amount on File |
| Deed Document Number | 200048840 |
| Last Transfer Date | Dec 28, 2016 |
| Transfer Doc | 0000000832 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jan 4, 2017 |
| Property Address | 510 SONORA AVE, EL GRANADA, CA 94018 |
| Document Number | 0000000832 |
| Instrument Date | Dec 28, 2016 |
| Instrument | 832 |
| Transaction Type | Transfer |
| Record Updated | Jan 20, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | PO BOX 2425 EL GRANADA CA 940182425, EL GRANADA, CA 94018-2425 |
The 2025 property tax bill for 510 Sonora Ave was $8,652.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Unified School District | Cabrillo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $656,850 (+2%) Land $328,425 Building $328,425 | ||
| 2025 | $8,652.00 | $643,972 Land $321,986 Building $321,986 | |
| 2023 | $7,747.00 (+2.51%) | $618,968 Land $309,484 Building $309,484 | $1,009,350 |
| 2022 | $7,557.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 510 Sonora Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2022.
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 10 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 10 in force |
| Nearby Flood Claims | 1 (2022) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, 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.
Wildfire risk around 510 Sonora Ave is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.03% 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 398 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 |
May also be available: AT&T, Verizon.
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