487 E Mariposa St, Altadena, CA 91001 Property Records

Los Angeles County property record for 487 E Mariposa St, Altadena, CA 91001

Property Summary

Property TypeSingle Family Home
Details6 bd · 3 ba · 4,993 sqft · built 1924
Lot Size0.569 acres (24,805 sqft)
Owner2 Individual Names on File
Last Sale$1,350,000 (Oct 2017)
Tax Bill$16,764 (2025)
Deeds & MortgagesOct 2017 Sale & Mortgage
Jan 2017 Transfer
Flood ZoneZone X (minimal risk)
APN5840-005-024

Property Details

APN / Parcel Number

Primary APN5840-005-024

Interior

Bedrooms6 Beds
Full Baths3 Baths
Building Area4,993 sqft Living Area
Gross Area5,473 sqft

Exterior

Year BuiltBuilt 1924
Effective Year BuiltEffective 1926
Construction TypeWood
Lot Area24,805 sqft (0.569 acres)

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemFloor/Wall Furnace

Location & Zoning

Street Address487 E MARIPOSA ST
CityALTADENA
StateCA
Zip91001-2206
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeLCR110
Legal DescriptionMAP 1 ALTADENA SW 180 FT OF LOT 9 AND SE 20.5 FT OF LOT 10 BLK 24
Legal SubdivisionMAP #1 ALTADENA
Legal Block24
Legal Lot Number9,10
JurisdictionLOS ANGELES CA
Township / Civil DivisionPASADENA
Census Block Group5
Census Block5005
Census Tract460200

Owner

Source: Los Angeles County records · APN 5840-005-024

Assessment roll updated May 21, 2026 · Last verified June 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on File
Mailing Address635 S RIMPAU BLVD, LOS ANGELES, CA 90005-3842
Owner TypeIndividual
VestingTenants in Common

Deeds, Mortgages & Sale History

DateDocument
Oct 04, 2017Grant Deed, Transfer
HOWARD CONN MD INC PSP/TR (CT)
Jan 13, 2017Quit Claim Deed, Transfer
Quitclaim

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleOct 04, 2017 · Amount on Record
Deed SaleOct 04, 2017 · Amount on Record
Deed Document Number20171138415
Prior Transfer DateDec 29, 2016
Prior Transfer Doc0000056711
Record UpdatedSep 20, 2026

October 2017: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionLOS ANGELES CA
Recording DateOct 04, 2017
Property Address487 E MARIPOSA ST, ALTADENA, CA 91001-2206
Document Number0001138415
Instrument DateSep 20, 2017
Instrument1138415
Transaction TypeTransfer
Record UpdatedOct 10, 2017
Title CompanyFIDELITY NATIONAL TITLE, FIDELITY TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$1,485.00
Amount AccuracyFull Value
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipTenants in Common
Address635 S RIMPAU BLVD LOS ANGELES CA 900053842, LOS ANGELES, CA 90005-3842

Mortgage

Document Number1138416
DateOct 04, 2017
Instrument1138416
Lender
NameHOWARD CONN MD INC PSP/TR (CT)
AddressSAN DIEGO, CA 92128
Agreement
AmountAmount Recorded

January 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionLOS ANGELES CA
Recording DateJan 13, 2017
Property Address487 E MARIPOSA ST, ALTADENA, CA 91001-2206
Document Number0000056711
Instrument DateDec 29, 2016
Instrument56711
Transaction TypeTransfer
Record UpdatedJan 20, 2017

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipSeparate Estate/Property
Address487 E MARIPOSA ST ALTADENA CA 910012206, ALTADENA, CA 91001-2206

Tax Assessment & Valuation

Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified June 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyLos Angeles County
Unified School DistrictPasadena Unified School District (KG - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes and is not a market price estimate.

YearTax BillAssessed Value
2025$16,764.00 (-5.13%)$1,438,783 (-2.55%) Land $819,236 Building $619,547
2023$17,670.00 (+3.54%)$1,476,419 Land $874,915 Building $601,504
2022$17,066.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 30, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Wildfire

Wildfire RiskLow
lower than 80% of the US · lower than 88% of California
Wildfire Likelihood0.01% annual chance
ExposureNone
beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

ProviderMax Down / Up (Mbps)
AT&T
Fiber · Fixed Wireless, DSL in parts of the area
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: California Internet.

Based on FCC filings for 544 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water SystemRUBIO CANON LAND & WATER ASSOCIATION
private · serves 6,646 people
Water SourceSurface water
Last State InspectionSep 2022
LeadUnder 1 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.

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