Alameda County property record for 870 Walnut St, Alameda, CA 94501
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,400 sqft · built 1906 |
| Lot Size | 0.144 acres (6,250 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,250,000 (Nov 2024) |
| Tax Bill | $17,888 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 74-1230-36 |
| Primary APN | 74-1230-36 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 2,400 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1906 |
|---|---|
| Effective Year Built | Effective 1906 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,250 sqft (0.144 acres) |
| Street Address | 870 WALNUT ST |
|---|---|
| City | ALAMEDA |
| State | CA |
| Zip | 94501-4920 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00036 BLK: AR: 0074 PAGE: 1230 |
| Legal Subdivision | BELLEVUE |
| Legal Block | C |
| Legal Lot Number | 20 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | ALAMEDA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 428400 |
Source: Alameda County records, as of August 5, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 2069 CENTRAL AVE, ALAMEDA, CA 94501-4210 |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 26, 2024 · Amount on Record |
| Deed Sale | Nov 26, 2024 · Amount on Record |
| Deed Document Number | 2024145963 |
| Prior Transfer Date | Oct 24, 2013 |
| Prior Transfer Doc | 0000339244 |
| Record Updated | Sep 20, 2026 |
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Alameda City |
| Unified School District | Alameda City Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,275,000 (+2%) Land $382,500 Building $892,500 | ||
| 2025 | $17,888.00 (+597.12%) | $1,250,000 (+960.87%) Land $375,000 Building $875,000 | |
| 2023 | $2,566.00 Homeowner's exemption | $117,828 Land $88,949 Building $28,879 | $1,547,010 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
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 | 2 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.
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 490 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 · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Google Fiber.
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