Los Angeles County property record for 428 E Mariposa St, Altadena, CA 91001 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,337 sqft · built 1965 |
| Lot Size | 0.254 acres (11,079 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $952,500 (May 2016) |
| Tax Bill | $4,311 (2025) |
| Deeds & Mortgages | Feb 2026 Mortgage Jan 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 5840-007-017 |
| Primary APN | 5840-007-017 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 13 Rooms |
| Stories | 1 Story |
| Building Area | 2,337 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | Contemporary |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Hip |
| Roof Material | Wood Shingle |
| Lot Area | 11,079 sqft (0.254 acres) |
| Lot Dimensions | 125 ft deep x 88 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 428 E MARIPOSA ST |
|---|---|
| City | ALTADENA |
| State | CA |
| Zip | 91001-2207 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT NO 29892 LOT 10 |
| Legal Subdivision | 29892 |
| Legal Tract | 29892 |
| Legal Block | 3 |
| Legal Lot Number | 10 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | PASADENA |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 461100 |
Source: Los Angeles County records · APN 5840-007-017
Assessment roll updated May 21, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 160 CHESTNUT ST, 401, PASADENA, CA 91103-3819 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Personal Trust |
| Date | Document |
|---|---|
| Feb 17, 2026 | Deed of Trust, Mortgage · SBA Mortgage UNITED STATES SMALL BUSINESS ADMIN |
| Jan 18, 2017 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 19, 2016 · Amount on Record |
| Deed Sale | May 19, 2016 · Amount on Record |
| Prior Sale | Oct 18, 2002 · Amount on Record |
| Deed Document Number | 2016576795 |
| Last Transfer Date | Jan 12, 2017 |
| Transfer Doc | 0000071338 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 428 E MARIPOSA ST, ALTADENA, CA 91001-2207 |
| Transaction Type | Mortgage |
| Record Updated | Mar 04, 2026 |
| Name | Verified Name |
|---|---|
| Address | 160 CHESTNUT ST 401, 401, PASADENA, CA 91103-3819 |
| Document Number | 0000112777 |
|---|---|
| Date | Feb 17, 2026 |
| Instrument | 26-0112777 |
| Name | UNITED STATES SMALL BUSINESS ADMIN |
|---|---|
| Type | Government Agency |
| Address | EL PASO, TX 79925 |
| Type | SBA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 349 Months |
| Due | Mar 25, 2055 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Jan 18, 2017 |
| Property Address | 428 E MARIPOSA ST, ALTADENA, CA 91001-2207 |
| Document Number | 0000071338 |
| Instrument Date | Jan 12, 2017 |
| Instrument | 71338 |
| Transaction Type | Transfer |
| Record Updated | Jan 24, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 428 E MARIPOSA ST ALTADENA CA 910012207, ALTADENA, CA 91001-2207 |
Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Unified School District | Pasadena Unified School District (KG - 12) |
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.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $4,311.00 (-64.03%) Homeowner's exemption | $362,646 (-64.23%) Land $362,646 |
| 2023 | $11,985.00 (+3.58%) Homeowner's exemption | $1,013,779 Land $536,252 Building $477,527 |
| 2022 | $11,571.00 |
Source: FEMA National Flood Hazard Layer, Los Angeles County (06037C), updated September 30, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060374611003, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (1986) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Mar 1986, river or lake flooding |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 544 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Spectrum | Cable | 1,000 / 1,000 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
May also be available at this address: AT&T, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.
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