Los Angeles County property record for 3373 Marengo Ave, Altadena, CA 91001
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 890 sqft · built 1915 |
| Lot Size | 0.235 acres (10,230 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $3,531 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 5833-001-010 |
| Primary APN | 5833-001-010 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 890 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1915 |
|---|---|
| Effective Year Built | Effective 1926 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 10,230 sqft (0.235 acres) |
| Lot Dimensions | 78 ft deep x 135 ft wide |
| Heating System | Central |
|---|
| Street Address | 3373 MARENGO AVE |
|---|---|
| City | ALTADENA |
| State | CA |
| Zip | 91001-4039 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR110 |
| Legal Description | TRACT # 2904 NW 78 FT OF NE 135 FT OF LOT A |
| Legal Subdivision | 2904 |
| Legal Tract | 2904 |
| Legal Block | 1 |
| Legal Lot Number | A |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | PASADENA |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 460200 |
3373 Marengo Ave, a single family home, is owned by an individual.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 3375 MARENGO AVE, ALTADENA, CA 91001-4039 |
| 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 | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 3373 Marengo Ave was $3,531.
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 | $294,823 (+2%) Land $294,823 | |
| 2025 | $3,531.00 | $289,043 Land $289,043 |
| 2023 | $6,427.00 (+3.49%) | $519,823 Land $427,413 Building $92,410 |
| 2022 | $6,210.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 3373 Marengo Ave in Zone X, an area of minimal flood risk, though there have been 6 flood claims nearby since 1995.
Source: FEMA National Flood Hazard Layer, effective September 30, 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 6 (20% premium discount) |
| Nearby Flood Policies | 4 in force |
| Nearby Flood Claims | 6 (1995–2023) |
| Claims Outside the SFHA | 6 of 6 |
| Most Recent Claim | Mar 2023 · Severe Winter Storms, Straight-line Winds, Flooding, Landslides, And Mudslides |
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.
Wildfire risk around 3373 Marengo Ave is high, ranking above 72% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 72% of the US · above 48% of California |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Indirect 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 | LAS FLORES WATER CO. private · serves 2,211 people · EPA ID CA1910061 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Oct 2025 |
| Lead | Under 1 ppb (2023–2025) 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 715 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: GeoLinks, T-Mobile.
5G (outdoors only) and 4G LTE
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