Off market may 1972 for $21K
$904,018
Est. refi paymentEst. refi $146/mo
3
bd
•
2 ba
•
1,366
sq ft

231 Marathon Rd, Altadena, CA 91001

map-entry

About this home

231 Marathon Rd is a 1,366 square foot house on a 6,303 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on May 23, 1972 for $21,500. Based on Redfin's Altadena data, we estimate the home's value is $904,018.
Single-familyProperty Type
1947Year Built
6,303 sq ftLot Size
$662Est. Price/Sq.Ft.
Source:Public Records

Redfin Estimate

$904,018
$883K since sold in May 1972$3,000 since September

This home's estimate is 55.9% higher than the average sale price ($580K) of 6 comparable homes.

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Earn from this home

Sell
$853,954
Est. take-home

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Refinance
$0
Est. cash available

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Rent
$4,394/mo
Redfin rental estimate

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Market trends in 91001, CA

Sale history for 231 Marathon Rd

Tax history for 231 Marathon Rd

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Permits

Nov 3, 2026 • Active
Residential new construction building permit - county

Construct a new one-story single-family home with an attached garage and an entry porch. The residence includes three bedrooms and two bathrooms.

New construction

Sep 4, 2026 • Final
Construction and demolition - deposit

Construct a new one-story single-family home featuring three bedrooms and two bathrooms. The project includes an attached garage and an entry porch.

Demolition

New construction

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Around this home

Schools

Altadena Elementary School

Public K-5 • Assigned • 1.0mi

5/10
Eliot Arts Magnet

Public 6-8 • Assigned • 1.2mi

2/10
John Muir High School

Public 9-12 • Assigned • 1.8mi

4/10
Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

8/10 Fire Factor

27% chance of being in a wildfire in next 30 years

5/10 Heat Factor

7 days above 95° expected this year, 18 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

9/10 Air Factor

21 unhealthy days expected this year, 24 days in 30 years

Provided by First Street

Historical weather

Altadena, CA • 91001
Average low and high temperatures (°F)
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49
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52
73
54
71
52
75
56
81
59
86
62
90
64
85
64
81
58
71
51
69
50
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
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Dec

Sun exposure

In this area, properties receive around 10.2 hours in June and 6.5 hours in December, placing it above the U.S. average for solar exposure.

10.2 hrs
6.5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$859,000 – $1.04M

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GreatSchools Ratings provided by GreatSchools.org.