Alameda County property record for 663 Warden Ave, San Leandro, CA 94577
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,011 sqft · built 1946 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Trust Name on File |
| Last Sale | $260,000 (Sep 2010) |
| Tax Bill | $5,103 (2025) |
| Deeds & Mortgages | Feb 2022 Transfer Mar 2021 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 77A-653-22-2 |
| Primary APN | 77A-653-22-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,011 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1946 |
|---|---|
| Effective Year Built | Effective 1946 |
| Architectural Style | L-Shape |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 5,000 sqft (0.115 acres) |
| Heating System | Gravity Furnace |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 663 WARDEN AVE |
|---|---|
| City | SAN LEANDRO |
| State | CA |
| Zip | 94577-1237 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00092 BLK: TR: 0777 |
| Legal Subdivision | DECOTO |
| Legal Tract | 0777 |
| Legal Lot Number | 92 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 432400 |
663 Warden Ave is held in a trust since February 2022.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 609 CLEARFIELD DR, MILLBRAE, CA 94030-2144 |
| 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.
| Date | Document |
|---|---|
| Feb 25, 2022 | Intrafamily Transfer, Transfer |
| Mar 1, 2021 | Intrafamily Transfer, Transfer |
| May 4, 2018 | Intrafamily Transfer, Transfer · Line of Credit EAST WEST BANK |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 20, 2010 · Amount on File |
| Deed Sale | Sep 20, 2010 · Amount on File |
| Prior Sale | Feb 19, 2010 · Amount on File |
| Deed Document Number | 2010271701 |
| Last Transfer Date | Feb 18, 2022 |
| Transfer Doc | 0000042405 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Feb 25, 2022 |
| Property Address | 663 WARDEN AVE, SAN LEANDRO, CA 94577-1237 |
| Document Number | 0000042405 |
| Map Reference | MB 22 PG 46 |
| Instrument Date | Feb 22, 2022 |
| Instrument | 2022042405 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Living Trust |
| Address | 609 CLEARFIELD DR, MILLBRAE, CA 94030-2144 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Mar 1, 2021 |
| Property Address | 663 WARDEN AVE, SAN LEANDRO, CA 94577-1237 |
| Document Number | 0000085362 |
| Map Reference | LB 19 PG 43 |
| Instrument Date | Nov 13, 2020 |
| Instrument | 2021085362 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Living Trust |
| Address | 609 CLEARFIELD DR, MILLBRAE, CA 94030-2144 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 4, 2018 |
| Property Address | 663 WARDEN AVE, SAN LEANDRO, CA 94577-1237 |
| Document Number | 0000089667 |
| Map Reference | MB 2 PG 46 |
| Instrument Date | Apr 27, 2018 |
| Instrument | 2018089667 |
| Transaction Type | Transfer |
| Record Updated | Jul 19, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 609 CLEARFIELD DR, MILLBRAE, CA 94030-2144 |
| Document Number | 0000089668 |
|---|---|
| Date | May 4, 2018 |
| Instrument | 2018089668 |
| Name | EAST WEST BANK |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 359 Months |
| Due | Apr 26, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
The 2025 property tax bill for 663 Warden Ave was $5,103, up 4% from the year before.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | San Leandro City |
| Unified School District | San Leandro Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $339,747 (+2%) Land $101,924 Building $237,823 | ||
| 2025 | $5,103.00 (+3.95%) | $333,085 Land $99,925 Building $233,160 | |
| 2024 | $4,909.00 (+1.32%) | ||
| 2023 | $4,845.00 | $320,155 Land $96,046 Building $224,109 | $554,310 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 663 Warden Ave in Zone X, an area of minimal flood risk.
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 1 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.
The area around 663 Warden 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 | 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 823 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: GeoLinks.
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