Alameda County property record for 10403 Walnut St, Oakland, CA 94603
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 2 ba · 1,444 sqft · built 1948 |
| Lot Size | 0.088 acres (3,846 sqft) |
| Owner | Company Name on File |
| Last Sale | $93,900 (Dec 2011) |
| Tax Bill | $4,096 (2025) |
| Deeds & Mortgages | Apr 2022 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 47-5509-32-1 |
| Primary APN | 47-5509-32-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,444 sqft Living Area |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Construction Type | Wood |
| Lot Area | 3,846 sqft (0.088 acres) |
| Street Address | 10403 WALNUT ST |
|---|---|
| City | OAKLAND |
| State | CA |
| Zip | 94603-3253 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LOT: 00001 BLK: AR: 0027 PAGE: 0845 ;LOT: 00001 BLK: AR: 0030 PAGE: 1981 ;LOT: 00001 BLK: AR: 0041 PAGE: 3892 |
| Legal Subdivision | IVEYWOOD |
| Legal Block | R |
| Legal Lot Number | 17&18 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | OAKLAND |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 410400 |
10403 Walnut St, a duplex, is owned by a company that bought it in December 2011.
Source: Alameda County records, as of October 20, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1032 E 14TH ST, SAN LEANDRO, CA 94577-3731 |
| Owner Type | Company |
| Vesting | Limited Liability Company |
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 | Name on Deed |
|---|---|
| Last Sale | Dec 22, 2011 · Amount on File |
| Deed Sale | Dec 22, 2011 · Amount on File |
| Prior Sale | Jul 29, 2011 · Amount on File |
| Deed Document Number | 2011373118 |
| Prior Transfer Date | Dec 19, 2011 |
| Prior Transfer Doc | 0000373118 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Apr 28, 2022 |
| Property Address | 10403 WALNUT ST, OAKLAND, CA 94603-3253 |
| Document Number | 0000084159 |
| Map Reference | MB 25 PG 39 |
| Instrument Date | Jan 20, 2022 |
| Instrument | 2022084159 |
| Transaction Type | Transfer |
| Record Updated | May 24, 2022 |
| Title Company | SERVICELINK TITLE COMPANY D, SERVICELINK TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 8 THE GRN # B, B, DOVER, DE 19901-3618 |
| Investor | Possibly a Property Investor |
| Document Number | 0000084160 |
|---|---|
| Date | Apr 28, 2022 |
| Instrument | 2022084160 |
| Name | COLONY AMERICAN FINANCE LENDER LLC |
|---|---|
| Type | Mortgage Company |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 10403 Walnut St was $4,096, up 4.8% from the year before.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Oakland City |
| Unified School District | Oakland Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $128,110 (+2%) Land $38,433 Building $89,677 | |
| 2025 | $4,096.00 (+4.84%) | $125,598 Land $37,679 Building $87,919 |
| 2024 | $3,907.00 (-0.89%) | |
| 2023 | $3,942.00 | $120,722 Land $36,216 Building $84,506 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 10403 Walnut St in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1982.
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 |
| Nearby Flood Claims | 2 (1982) |
| Most Recent Claim | Jan 1982 · rainfall accumulation |
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 10403 Walnut St 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 1,097 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 in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, GeoLinks, T-Mobile.
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