123 Marathon Rd, Altadena, CA 91001 Property Records

Los Angeles County property record for 123 Marathon Rd, Altadena, CA 91001

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,648 sqft · built 1947
Lot Size	0.139 acres (6,041 sqft)
Owner	2 Company Names on Record
Tax Bill	$9,872 (2025)
Deeds & Mortgages	May 2022 Transfer May 2022 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`5833-009-018`

Property Details

APN / Parcel Number

Primary APN	`5833-009-018`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,648 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1947
Effective Year Built	Effective 1947
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Hip
Roof Material	Wood Shingle
Lot Area	6,041 sqft (0.139 acres)
Lot Dimensions	115 ft deep x 53 ft wide
Garage Type	Attached

Utilities, Heating & Cooling

Heating System	Floor/Wall Furnace

Location & Zoning

Street Address	123 MARATHON RD
City	ALTADENA
State	CA
Zip	91001-4422
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR175
Legal Description	TRACT # 12607 LOT 32
Legal Subdivision	12607
Legal Tract	12607
Legal Block	2
Legal Lot Number	32
Jurisdiction	LOS ANGELES CA
Township / Civil Division	PASADENA
Census Block Group	2
Census Block	2003
Census Tract	460200

Owner

Source: Los Angeles County records, as of August 25, 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 Record
Mailing Address	638 S SYCAMORE AVE, LOS ANGELES, CA 90036-3504
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
May 12, 2022	Intrafamily Transfer, Transfer
May 12, 2022	Intrafamily Transfer, Transfer
Feb 14, 2022	Affidavit of Death of Trustee, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Apr 27, 2022
Transfer Doc	0000518330
Record Updated	Oct 29, 2026

May 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	May 12, 2022
Property Address	123 MARATHON RD, ALTADENA, CA 91001-4422
Document Number	0000518329
Map Reference	MB 291 PG 13-15
Instrument Date	Apr 27, 2022
Instrument	22-0518329
Transaction Type	Transfer
Record Updated	May 26, 2022

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
Address	638 S SYCAMORE AVE, LOS ANGELES, CA 90036-3504

May 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	May 12, 2022
Property Address	123 MARATHON RD, ALTADENA, CA 91001-4422
Document Number	0000518330
Map Reference	MB 291 PG 13-15
Instrument Date	Apr 27, 2022
Instrument	22-0518330
Transaction Type	Transfer
Record Updated	Jun 7, 2023

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	Family Trust
Address	638 S SYCAMORE AVE, LOS ANGELES, CA 90036-3504

February 2022: Affidavit of Death of Trustee, Transfer

Document Type	Affidavit of Death of Trustee
Jurisdiction	LOS ANGELES CA
Recording Date	Feb 14, 2022
Property Address	123 MARATHON RD, ALTADENA, CA 91001-4422
Document Number	0000179445
Map Reference	MB 291 PG 13-15
Instrument Date	Nov 17, 2021
Instrument	22-0179445
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	638 S SYCAMORE AVE, LOS ANGELES, CA 90036-3504

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		$868,110 (+2%) Land $575,854 Building $292,256
2025	$9,872.00 (-19.85%) Homeowner's exemption	$851,089 (-18.6%) Land $564,563 Building $286,526
2024	$12,317.00 (+0.88%)
2023	$12,210.00 (+2.93%) Homeowner's exemption	$1,045,500 (+460.52%) Land $678,300 Building $367,200
2022	$11,862.00 Homeowner's exemption	$186,524 Land $73,424 Building $113,100

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

Flood

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	1 in force

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

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

Wildfire Risk	High above 70% of the US · above 45% of California
Wildfire Likelihood	0.3% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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	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

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 656 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	1,000 / 1,000
Starlink Satellite	280 / 30

May also be available: Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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