428 Concha St is a 1,518 square foot house on a 8,701 square foot lot with 2 bedrooms and 2 bathrooms. - it last sold on November 09, 1966 for $28,000. Based on Redfin's Altadena data, we estimate the home's value is $862,366.
Single-familyProperty Type
1950Year Built
8,701 sq ftLot Size
$568Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$862,366
$834K since sold in November 1966$0 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 29.2% higher than the average sale price ($668K) 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
Mar 27, 2021 • Final
Express utility
Electrical
Sep 26, 2018 • Final
Express utility
Perform repair, relocation, and maintenance on existing gas facilities. Work includes service replacement and asphalt cutting.
Gas
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
Interior
Heating & Cooling
Heating Type: Central
Exterior
Property Information
Subdivision Name: 6817
Living Sq. Ft: 1,518
# of Units: 1
Legal Description: TRACT # 6817 LOT 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,701
Legal Lot Number: 1
Acres: 0.1997
Depth Footage: 150
Front Footage: 58
Zoning Code: LCR175
County Use Description: SINGLE FAMILY RESID
Location Information
Parcel Location Influence: Corner
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 2.0
Sq. Ft.: 1,518
Stories: —
Lot Size: 8,701 square feet
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1953
County: Los Angeles County
APN: 5841002001
Home facts updated by county records on Oct 8, 2026
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 • 2.1mi
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
29% chance of being in a wildfire in next 30 years
5/10 Heat Factor
5 days above 95° expected this year, 14 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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86
62
90
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85
64
81
58
71
51
69
50
Jan
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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
$820,000 – $992,000
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