Alameda County property record for 15863 Corte Geraldo, San Lorenzo, CA 94580
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,273 sqft · built 1955 |
| Lot Size | 0.16 acres (6,975 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $621,000 (Aug 2016) |
| Tax Bill | $9,430 (2025) |
| Deeds & Mortgages | Nov 2020 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 411-39-42 |
| Primary APN | 411-39-42 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,273 sqft Living Area |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1956 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,975 sqft (0.16 acres) |
| Street Address | 15863 CORTE GERALDO |
|---|---|
| City | SAN LORENZO |
| State | CA |
| Zip | 94580-2004 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00007 BLK: 000C TR: 1478 |
| Legal Tract | 1478 |
| Legal Block | C |
| Legal Lot Number | 7 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 4 |
| Census Block | 4009 |
| Census Tract | 435900 |
15863 Corte Geraldo is owned and occupied by two individuals who bought it in August 2016.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 15863 CORTE GERALDO, SAN LORENZO, CA 94580-2004 |
| Occupancy | Owner Occupied |
| 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 | 2 Names on Deed |
|---|---|
| Last Sale | Aug 22, 2016 · Amount on File |
| Deed Sale | Aug 22, 2016 · Amount on File |
| Prior Sale | Aug 15, 2008 · Amount on File |
| Deed Document Number | 2016212052 |
| Prior Transfer Date | Aug 16, 2016 |
| Prior Transfer Doc | 0000212051 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 15863 CORTE GERALDO, SAN LORENZO, CA 94580-2004 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | WFG NATIONAL TITLE INS CO |
| Name | Verified Name |
|---|---|
| Address | 15863 CORTE GERALDO, SAN LORENZO, CA 94580-2004 |
| Document Number | 0000304987 |
|---|---|
| Date | Nov 10, 2020 |
| Instrument | 2020304987 |
| Name | GENERAL MORTGAGE CAPITAL CORP |
|---|---|
| Type | Mortgage Company |
| Address | BURLINGAME, CA 94010 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2050 |
The 2025 property tax bill for 15863 Corte Geraldo was $9,430 with a homeowner's exemption.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | San Lorenzo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $731,534 (+1.03%) Land $224,916 Building $513,618 | ||
| 2025 | $9,430.00 Homeowner's exemption | $724,053 Land $220,506 Building $503,547 | |
| 2023 | $9,085.00 Homeowner's exemption | $695,942 Land $211,945 Building $483,997 | $797,760 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 15863 Corte Geraldo in Zone X, an area of moderate flood risk, within 100 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective May 25, 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 |
| Nearest Special Flood Hazard Area | Zone AO, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 48 policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 48 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.
Wildfire risk around 15863 Corte Geraldo 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 | None beyond 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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 914 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 · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| RobinsonHSS Fixed Wireless | 1,000 / 1,000 |
| Tekify Fiber & Wireless Fixed Wireless | 500 / 110 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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