Google street view image for 517 Concha St, Altadena, CA 91001

Off market

$1,011,262

•

2 ba

•

1,648

sq ft

517 Concha St, Altadena, CA 91001

About this home

517 Concha St is a 1,648 square foot house on a 0.39 acre lot with 2 bedrooms and 2 bathrooms. Based on Redfin's Altadena data, we estimate the home's value is $1,011,262.

Single-familyProperty Type

1948Year Built

0.39 acresLot Size

$614Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,011,262

$65K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 41.9% higher than the average sale price ($713K) of 6 comparable homes.

SOLD SEP 8, 2026
$660,000
A
Land— sq ft
411 E Marigold St, Altadena, CA 91001
SOLD AUG 28, 2026
$550,000
B
Land— sq ft
1308 Sunny Oaks Cir, Altadena, CA 91001
SOLD MAY 12, 2026
$1,130,000
C
Land— sq ft
1277 Rubio St, Altadena, CA 91001
SOLD AUG 13, 2026
$725,000
D
Land— sq ft
3315 Alegre, Altadena, CA 91001
SOLD SEP 28, 2026
$560,000
E
Land— sq ft
3154 Alaca Dr, Altadena, CA 91001
SOLD MAY 1, 2026
$650,000
F
Land— sq ft
348 Parkman St, Altadena, CA 91001
COMPASS

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Earn from this home

Sell

$955,391

Est. take-home

List your home with Redfin and save $5,056

Rent

$4,554/mo

Redfin rental estimate

List your home for rent

Market trends in 91001, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

102.5%

0.1% MoM

Median sale price

$1.6M

$31K MoM

Avg. days on market

45d

5 days MoM

Recently sold homes

0 MoM

New listings for sale

$800,000
2 beds1 bath1,016 sq ft
1970 Allen Ave, Altadena, CA 91001
$2,799,000
7 beds6 baths3,500 sq ft
715 Devirian Pl, Altadena, CA 91001
$1,498,000
3 beds2 baths1,823 sq ft
2120 Roosevelt, Altadena, CA 91001
$1,278,000
3 beds3 baths1,431 sq ft
949 Dolores, Altadena, CA 91001
Coldwell Banker-Campbell Rltrs
$859,000
3 beds2 baths1,140 sq ft
135 W Woodbury, Altadena, CA 91001
$2,350,000
3 beds3 baths2,419 sq ft
1211 E Palm St, Altadena, CA 91001
$1,595,000
4 beds3 baths1,932 sq ft
4369 El Prieto Rd, Altadena, CA 91001
Compass
See all

Provided by Redfin

Sale history for 517 Concha St

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2025

$486 (−69.7%)

$17,533

2024

$1,603 (+1.2%)

$17,190

2023

$1,584 (+3.0%)

$25,927 + $60,295

$86,222

2022

$1,538 (+10.0%)

$25,419 + $59,113

$84,532

2021

$1,398 (+2.7%)

$24,921 + $57,954

$82,875

2020

$1,361 (+0.4%)

$24,433 + $56,818

$81,251

2019

$1,356 (+3.6%)

$24,183 + $56,236

$80,419

2018

$1,308 (+1.2%)

$23,709 + $55,134

$78,843

2017

$1,293 (+3.8%)

$22,790 + $52,994

$75,784

2016

$1,246 (+1.1%)

$22,790 + $52,994

$75,784

2015

$1,232

$22,344 + $51,955

$74,299

2014

$1,233 (+1.9%)

$21,578 + $50,173

$71,751

2012

$1,210 (+2.7%)

$21,481 + $49,947

$71,428

2011

$1,178 (+1.7%)

$21,060 + $48,968

$70,028

2010

$1,159 (+0.8%)

$20,648 + $48,008

$68,656

2009

$1,150 (+5.5%)

$20,494 + $47,650

$68,144

2008

$1,090

$20,543 + $47,764

$68,307

Tax history for 517 Concha St

Year

Property tax

Land + Additions

Assessment*

2025

$486 (−69.7%)

$17,533

2024

$1,603 (+1.2%)

$17,190

2023

$1,584 (+3.0%)

$25,927 + $60,295

$86,222

2022

$1,538 (+10.0%)

$25,419 + $59,113

$84,532

2021

$1,398 (+2.7%)

$24,921 + $57,954

$82,875

2020

$1,361 (+0.4%)

$24,433 + $56,818

$81,251

2019

$1,356 (+3.6%)

$24,183 + $56,236

$80,419

2018

$1,308 (+1.2%)

$23,709 + $55,134

$78,843

2017

$1,293 (+3.8%)

$22,790 + $52,994

$75,784

2016

$1,246 (+1.1%)

$22,790 + $52,994

$75,784

2015

$1,232

$22,344 + $51,955

$74,299

2014

$1,233 (+1.9%)

$21,578 + $50,173

$71,751

2012

$1,210 (+2.7%)

$21,481 + $49,947

$71,428

2011

$1,178 (+1.7%)

$21,060 + $48,968

$70,028

2010

$1,159 (+0.8%)

$20,648 + $48,008

$68,656

2009

$1,150 (+5.5%)

$20,494 + $47,650

$68,144

2008

$1,090

$20,543 + $47,764

$68,307

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

Zoning and permits

Zoning
Permits

R-1-10000

Single-Family Residence Zone

Residential Zones preserve, protect, and enhance areas for residential land uses in a range of densities; provide for orderly, well-planned, and balanced growth of residential neighborhoods; and ensure adequate light, air, privacy, and open space for each dwelling. These zones also provide for the appropriate location of public and semi-public uses such as schools, parks, and religious facilities that can serve and complement residential uses.

Permitted uses

Include but are not limited to:

Agriculture-Other
Housing-Group
Housing-Other

Jan 23, 2027 • Active

Plumbing permit (simple) - county

Plumbing

Dec 5, 2026 • Active

Electrical permit (simple) - county

Install a temporary power pole for the construction of a new one-story single-family home. The project includes a covered patio.

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

Interior

Heating & Cooling
Heating Type: Central

Exterior

Property Information
Subdivision Name: MOHR LOWELL & GRAHAMS
Living Sq. Ft: 1,648
# of Units: 1
Legal Description: MOHR LOWELL AND GRAHAM'S SUB OF A PART OF THE RANCHO SAN PASQUAL 0.38 AC THAT PART IN ALTADENA LTG DIST OF 0.64 AC ON NE LINE OF CONCHA ST COM SE 566.28 FT FROM SE LINE OF MARENGO AVE TH SE ON LOT 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 16,803
Legal Lot Number: 2
Acres: 0.3857
Depth Footage: 200
Front Footage: 139
Zoning Code: LCR110
County Use Description: SINGLE FAMILY RESID

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 2
Baths: 2.0
Sq. Ft.: 1,648
Stories: —
Lot Size: 0.39 acres
Style: Single Family Residential
Year Built: 1948
Year Renovated: 1948
County: Los Angeles County
APN: 5842020003

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 • 2.2mi

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

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

5/10 Heat Factor

4 days above 95° expected this year, 11 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)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

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

$961,000 – $1.16M

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Land— sq ft

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Land— sq ft

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Relatively flat lot • Mature trees • Mountain views

COMPASS

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2 beds1 bath899 sq ft

2081 Summit, Altadena, CA 91001

8,916 sq ft lot • 2 garage spots • Built 1932

$2,498,000

3 beds3 baths2,799 sq ft

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Primary suite • Large windows • Vaulted ceilings

New listings for sale in 91001

$800,000

2 beds1 bath1,016 sq ft

1970 Allen Ave, Altadena, CA 91001

Detached garage • Expansive backyard • Neighborhood parks

$2,799,000

7 beds6 baths3,500 sq ft

715 Devirian Pl, Altadena, CA 91001

Scenic hiking trails • Vibrant gardens • Detached structure

$1,498,000

3 beds2 baths1,823 sq ft

2120 Roosevelt, Altadena, CA 91001

Updated kitchen • Separate den • Expansive rear deck

$1,278,000

3 beds3 baths1,431 sq ft

949 Dolores, Altadena, CA 91001

Remodeled kitchen • New electrical panel • Spacious usable yard

Coldwell Banker-Campbell Rltrs

$859,000

3 beds2 baths1,140 sq ft

135 W Woodbury, Altadena, CA 91001

Newer roof • New air conditioning • New windows

$2,350,000

3 beds3 baths2,419 sq ft

1211 E Palm St, Altadena, CA 91001

Custom landscaping • Private retreat • Walk-in closet

$1,595,000

4 beds3 baths1,932 sq ft

4369 El Prieto Rd, Altadena, CA 91001

Soaring canyon views • Private backyard • Gorgeous powder room

Compass

Home values near 517 Concha St

Data from public records.

Address	Redfin Estimate
462 Concha St, Altadena, CA 4 Beds \| 3 Baths \| 1097 Sq. Ft.	$651,005
486 Concha St, Altadena, CA 4 Beds \| 2 Baths \| 1749 Sq. Ft.	$947,848

Address	Redfin Estimate
470 Concha St, Altadena, CA 2 Beds \| 1 Baths \| 1116 Sq. Ft.	$706,416
494 Concha St, Altadena, CA 2 Beds \| 2 Baths \| 1467 Sq. Ft.	$827,087

Address	Redfin Estimate
476 Concha St, Altadena, CA 2 Beds \| 2 Baths \| 1742 Sq. Ft.	$868,904
502 Concha St, Altadena, CA 4 Beds \| 3 Baths \| 1777 Sq. Ft.	$1,110,717

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 91001, CA

Sale history for 517 Concha St

Tax history for 517 Concha St

Zoning and permits

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 91001

Home values near 517 Concha St

More real estate resources