1148 E Mariposa St, Altadena, CA 91001 Property Records

Los Angeles County property record for 1148 E Mariposa St, Altadena, CA 91001

Property Summary

Property Type	Duplex
Details	3 bd · 3 ba · 1,642 sqft · built 1950
Lot Size	0.243 acres (10,587 sqft)
Owner	2 Individual Names on Record
Last Sale	$298,000 (Jun 1999)
Tax Bill	$1,987 (2025)
Deeds & Mortgages	Feb 2022 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`5846-002-017`

Property Details

APN / Parcel Number

Primary APN	`5846-002-017`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Units	2 Units
Building Area	1,642 sqft Living Area

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1950
Architectural Style	Duplex Single
Construction Type	Wood
Lot Area	10,587 sqft (0.243 acres)
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Heating System	Floor/Wall Furnace

Location & Zoning

Street Address	1148 E MARIPOSA ST
City	ALTADENA
State	CA
Zip	91001-2049
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	LCR175
Legal Description	TRACT # 3168 LOT COM AT NW COR OF LOT 14 1 TH S 0 07 W 136.89 FT TH N 89 5545 E 70 FT TH N 0 07 E TO SE LINE OF EAST MARIPOSA ST TH SW THEREON TO BEG PART OF LOTS 140 AND LOT 141
Legal Subdivision	3168
Legal Tract	3168
Legal Block	4
Legal Lot Number	14
Jurisdiction	LOS ANGELES CA
Township / Civil Division	PASADENA
Census Block Group	4
Census Block	4007
Census Tract	460101

Owner

Source: Los Angeles County records, as of August 25, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Individual Names on Record
Mailing Address	2335 E COLORADO BLVD, 115, PASADENA, CA 91107-6833
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 18, 1999 · Amount on Record
Deed Sale	Jun 18, 1999 · Amount on Record
Prior Sale	Jul 30, 1998 · Amount on Record
Deed Document Number	19991124082
Last Transfer Date	Dec 21, 2021
Transfer Doc	0000144064
Record Updated	Oct 29, 2026

February 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Feb 4, 2022
Property Address	1148 E MARIPOSA ST, ALTADENA, CA 91001-2049
Document Number	0000144064
Map Reference	MB 33 PG 42
Instrument Date	Dec 21, 2021
Instrument	22-0144064
Transaction Type	Transfer
Record Updated	Feb 11, 2022
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATL TTL ORANGE CNT

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	1148 E MARIPOSA ST, ALTADENA, CA 91001-2049

Mortgage

Document Number	0000144065
Date	Feb 4, 2022
Instrument	22-0144065

Lender

Name	PARTNERS FCU
Type	Credit Union

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Mar 1, 2037

Tax Assessment & Valuation

Source: Los Angeles County assessment roll, as of August 25, 2026

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Unified School District	Pasadena Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$124,721 (+2%) Land $124,721
2025	$1,987.00 (-69.16%)	$122,276 (-74.36%) Land $122,276
2024	$6,443.00 (+3.67%)
2023	$6,215.00 (+3.41%)	$476,930 Land $180,811 Building $296,119
2022	$6,010.00

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.

Flood

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

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Moderate above 53% of the US · lower than 68% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Direct burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	RUBIO CANON LAND & WATER ASSOCIATION private · serves 6,646 people · EPA ID CA1910140
Water Source	Surface water
Last State Inspection	Sep 2022
Lead	Under 1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 634 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
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Verizon.

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