San Mateo County property record for 623 Sonora Ave, El Granada, CA 94018
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,740 sqft · built 1986 |
| Lot Size | 0.126 acres (5,500 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,350,000 (Jun 2025) |
| Tax Bill | $15,245 (2025) |
| Deeds & Mortgages | Nov 2021 Transfer May 2020 Sale & Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 047-045-110 |
| Primary APN | 047-045-110 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,740 sqft Living Area |
| 1st Floor Area | 1,740 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1986 |
| Architectural Style | Contemporary |
| Exterior Material | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 5,500 sqft (0.126 acres) |
| Lot Dimensions | 110 ft deep x 50 ft wide |
| Garage Area | 460 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 623 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 20 BLOCK 89 SUB NO 8 OF GRANADA RSM 6/65 |
| Legal Subdivision | SUB NO 8 OF GRANADA |
| Legal Block | 89 |
| Legal Lot Number | 20 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | HALF MOON BAY |
| Census Block Group | 4 |
| Census Block | 4007 |
| Census Tract | 613502 |
623 Sonora Ave is owned by two individuals who bought it in June 2025.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1555 HOLLINGSWORTH DR, MOUNTAIN VIEW, CA 94040-2948 |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Nov 5, 2021 | Intrafamily Transfer, Transfer |
| May 27, 2020 | Grant Deed, Transfer · Conventional Mortgage FIRST REPUBLIC BANK |
| Jul 3, 2019 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 27, 2025 · Amount on File |
| Deed Sale | Jun 27, 2025 · Amount on File |
| Prior Sale | May 27, 2020 · Amount on File |
| Deed Document Number | 202532763 |
| Prior Transfer Date | Oct 23, 2021 |
| Prior Transfer Doc | 0000155539 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Nov 5, 2021 |
| Property Address | 623 SONORA AVE, EL GRANADA, CA 94018 |
| Document Number | 0000155539 |
| Map Reference | MB 6 PG 65 |
| Instrument Date | Oct 23, 2021 |
| Instrument | 2021-155539 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 623 SONORA AVE, EL GRANADA, CA 94018 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | May 27, 2020 |
| Property Address | 623 SONORA AVE, EL GRANADA, CA 94018 |
| Document Number | 0000047918 |
| Map Reference | MB 6 PG 65 |
| Instrument Date | May 14, 2020 |
| Instrument | 2020-047918 |
| Transaction Type | Transfer |
| Record Updated | Aug 9, 2021 |
| Title Company | NORTH AMERICAN TITLE CO INC |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,226.50 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 5941 MCANDREW DR, OAKLAND, CA 94611-3134 |
| Document Number | 0000047919 |
|---|---|
| Date | May 27, 2020 |
| Instrument | 2020-047919 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jun 1, 2050 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jul 3, 2019 |
| Property Address | 623 SONORA AVE, EL GRANADA, CA 94018 |
| Document Number | 0000051916 |
| Instrument Date | Jun 18, 2019 |
| Instrument | 51916 |
| Transaction Type | Transfer |
| Record Updated | Jul 30, 2019 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | PO BOX 544 EL GRANADA CA 940180544, EL GRANADA, CA 94018-0544 |
The 2025 property tax bill for 623 Sonora Ave was $15,245.
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 | $1,377,000 (+12.92%) Land $688,500 Building $688,500 | ||
| 2025 | $15,245.00 Homeowner's exemption | $1,219,411 Land $407,928 Building $811,483 | |
| 2023 | $13,718.00 (+2.05%) Homeowner's exemption | $1,172,062 Land $392,089 Building $779,973 | $1,324,710 |
| 2022 | $13,443.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 623 Sonora Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims 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 10 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 10 in force |
| Nearby Flood Claims | 2 (1998–2017) |
| Claims Outside the SFHA | 1 of 2 |
| Most Recent Claim | Feb 2017 · Severe Winter Storms, Flooding, 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 623 Sonora Ave is low, with a 0.02% 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 | 0.02% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 284 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, T-Mobile, Verizon.
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