Alameda County property record for 2090 173rd Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 860 sqft · built 1941 |
| Lot Size | 0.111 acres (4,860 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $470,000 (Aug 2016) |
| Tax Bill | $7,380 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 80A-231-5 |
| Primary APN | 80A-231-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 860 sqft Living Area |
| Year Built | Built 1941 |
|---|---|
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 4,860 sqft (0.111 acres) |
| Street Address | 2090 173RD AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3810 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUBD:EL PORTAL |
| Legal Subdivision | EL PORTAL |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3017 |
| Census Tract | 430500 |
Source: Alameda County records, as of October 20, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 2090 173RD AVE, CASTRO VALLEY, CA 94546-3810 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 30, 2016 · Amount on Record |
| Deed Sale | Aug 30, 2016 · Amount on Record |
| Prior Sale | Jun 8, 2015 · Amount on Record |
| Deed Document Number | 2016219318 |
| Record Updated | Jun 8, 2026 |
Source: Alameda County assessment roll, as of July 1, 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | San Lorenzo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $7,380.00 (+3.81%) | $545,462 (+4.04%) Land $163,638 Building $381,824 |
| 2023 | $7,109.00 | $524,284 Land $157,285 Building $366,999 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; 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 796 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 |
May also be available: Etheric Networks, GeoLinks, T-Mobile, Unwired, Verizon.
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