Los Angeles County property record for 231 W Altadena Dr, Altadena, CA 91001
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 5 ba · 2,339 sqft · built 1946 |
| Lot Size | 0.211 acres (9,210 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $4,791 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 5832-010-003 |
| Primary APN | 5832-010-003 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 5 Baths |
| Total Rooms | 7 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 2,339 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1946 |
|---|---|
| Effective Year Built | Effective 1946 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 9,210 sqft (0.211 acres) |
| Lot Dimensions | 150 ft deep x 62 ft wide |
| Garage Type | Detached |
| Total Buildings | 2 Buildings |
| Heating System | Floor/Wall Furnace |
|---|---|
| Water Source | Commercial |
| Street Address | 231 W ALTADENA DR |
|---|---|
| City | ALTADENA |
| State | CA |
| Zip | 91001-4764 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | LCR175 |
| Legal Description | TRACT # 8278 SE 62.07 FT MEASURED ON NE LINE OF LOT 2 |
| Legal Subdivision | 8278 |
| Legal Tract | 8278 |
| Legal Block | 2 |
| Legal Lot Number | 2 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | PASADENA |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 460301 |
231 W Altadena Dr, a duplex, is owned and occupied by two individuals.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 231 W ALTADENA DR, ALTADENA, CA 91001-4764 |
| 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 |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 231 W Altadena Dr was $4,791 with a homeowner's exemption, down 3.9% from the year before.
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Unified School District | Pasadena Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $352,233 (+2%) Land $91,274 Building $260,959 | |
| 2025 | $4,791.00 (-3.93%) Homeowner's exemption | $345,328 Land $89,485 Building $255,843 |
| 2024 | $4,987.00 (+4.55%) | |
| 2023 | $4,770.00 (+3.34%) Homeowner's exemption | $346,197 Land $95,567 Building $250,630 |
| 2022 | $4,616.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 231 W Altadena Dr in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 30, 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.
Wildfire risk around 231 W Altadena Dr is moderate, ranking above 46% of the US, with a 0.08% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 46% of the US · lower than 72% of California |
|---|---|
| Wildfire Likelihood | 0.08% 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 | LINCOLN AVENUE WATER CO. private · serves 8,721 people · EPA ID CA1910063 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2022 |
| Lead | Under 1 ppb (2026–2028) 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.
Source: FCC Broadband Data Collection, based on 798 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures