618 Concha St is a 1,142 square foot house on a 0.3 acre lot with 2 bedrooms and 1 bathroom. - it last sold on June 11, 1976 for $33,000. Based on Redfin's Altadena data, we estimate the home's value is $648,321.
Single-familyProperty Type
1915Year Built
0.3 acresLot Size
$568Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$648,321
$615K since sold in June 1976$53K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 3.4% higher than the average sale price ($627K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jul 30, 2017 • Final
Express utility
Electrical
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
Exterior
Property Information
Subdivision Name: MARATHON HEIGHTS
Living Sq. Ft: 1,142
# of Units: 1
Legal Description: MARATHON HE1GHTS LOT 5
Lot Information
# of Buildings: 1
Land Sq. Ft: 13,200
Legal Lot Number: 5
Legal Block Number: 1
Acres: 0.303
Depth Footage: 165
Front Footage: 60
Zoning Code: LCR175
County Use Description: SINGLE FAMILY RESID
Utility Information
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,142
Stories: —
Lot Size: 0.3 acres
Style: Single Family Residential
Year Built: 1915
Year Renovated: 1922
County: Los Angeles County
APN: 5841001013
Home facts updated by county records on Apr 23, 2026
Around this home
Schools
Altadena Elementary School
Public K-5 • Assigned • 1.0mi
5/10
Eliot Arts Magnet
Public 6-8 • Assigned • 1.1mi
2/10
John Muir High School
Public 9-12 • Assigned • 2.2mi
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
33% chance of being in a wildfire in next 30 years
5/10 Heat Factor
4 days above 95° expected this year, 10 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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52
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83
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90
64
86
63
81
58
71
51
69
50
Jan
Feb
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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
$616,000 – $746,000
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