Google street view image for 2139 Mount Diablo St #1, Concord, CA 94520

Off market nov 2024 for $775K

$775,153

Est. refi paymentEst. refi $6,012/mo

•

2 ba

•

1,760

sq ft

2139 Mount Diablo St #1, Concord, CA 94520

About this home

2139 Mount Diablo St #1 is a 1,760 square foot multi-family home on a 4,375 square foot lot with 4 bedrooms and 2 bathrooms. - it last sold on November 21, 2024 for $775,000. Based on Redfin's Concord data, we estimate the home's value is $775,153.

Multi-familyProperty Type

1971Year Built

4,375 sq ftLot Size

$440Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$775,153

$153 since sold in November 2024$83K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 22.1% higher than the average sale price ($635K) of 6 comparable homes.

SOLD JUL 29, 2026
$730,000
A
4 beds2 baths1,955 sq ft
2697 Mayfair, Concord, CA 94520
SOLD SEP 15, 2026
$518,000
B
3 beds2 baths1,682 sq ft
3194 Esperanza Dr, Concord, CA 94519
SOLD AUG 27, 2026
$525,000
C
3 beds2 baths1,224 sq ft
1766 Oakmead Dr, Concord, CA 94520
SOLD FEB 13, 2026
$725,000
D
3 beds2 baths1,486 sq ft
3136 Meadowbrook Dr, Concord, CA 94519
SOLD AUG 28, 2026
$710,000
E
4 beds2 baths1,172 sq ft
3025 Justin Way, Concord, CA 94520
SOLD AUG 11, 2026
$600,000
F
3 beds2 baths1,395 sq ft
2707 Bonifacio St, Concord, CA 94519

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Earn from this home

Sell

$135,000

Est. take-home

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Est. cash available

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Market trends in 94520, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

101.6%

0.4% MoM

Median sale price

$623K

$7K MoM

Avg. days on market

32d

1 days MoM

Recently sold homes

13 MoM

New listings for sale

OPEN SAT, 12:30PM TO 3:30PM
$649,000
2 beds1 bath1,238 sq ft
2340 Ranchito Dr, Concord, CA 94520
NEW 21 HRS AGO
$759,000
4 beds2 baths1,577 sq ft
1300 Evergreen Dr, Concord, CA 94520
$259,999
2 beds2 baths1,440 sq ft
2368 Dalis Dr, Concord, CA 94520
COMING SOON
$315,000
2 beds1 bath884 sq ft
2005 Olivera Rd Unit D, Concord, CA 94520
OPEN SAT, 1PM TO 4PM
$445,000
3 beds1.5 baths1,240 sq ft
1289 Pine Creek Way Unit D, Concord, CA 94520
$169,900
2 beds2 baths1,320 sq ft
2097 Dalis Garden Dr #79, Concord, CA 94518
OPEN SAT, 1PM TO 4PM
$319,000
2 beds1.5 baths941 sq ft
1391 Monument Blvd #1, Concord, CA 94520
VIDEO TOUR
$699,000
3 beds2 baths1,170 sq ft
2403 Mountain View Dr, Concord, CA 94520
$695,000
5 beds2 baths1,593 sq ft
2685 Richard Ave, Concord, CA 94520
OPEN SAT, 2PM TO 4PM
$799,000
4 beds2 baths1,905 sq ft
3672 Sanford St, Concord, CA 94520
See all

Provided by Redfin

Sale history for 2139 Mount Diablo St #1

Year

Property tax

Land + Additions

Assessment*

2025

$10,464 (−4.7%)

$515,100 + $275,400

$790,500

2024

$10,976 (+2.1%)

$505,000 + $270,000

$775,000

2023

$10,750 (+120.2%)

$624,240 + $208,080

$832,320

2022

$4,883 (+3.3%)

$612,000 + $204,000

$816,000

2021

$4,725 (+1.4%)

$84,749 + $205,607

$290,356

2020

$4,662 (+1.3%)

$83,088 + $201,576

$284,664

2019

$4,604 (+5.1%)

$82,237 + $199,510

$281,747

2018

$4,378 (+4.3%)

$80,625 + $195,599

$276,224

2017

$4,198 (+4.0%)

$77,496 + $188,004

$265,500

2016

$4,035 (+2.8%)

$77,496 + $188,004

$265,500

2015

$3,926 (+3.4%)

$75,977 + $184,318

$260,295

2014

$3,797 (+3.9%)

$73,371 + $177,994

$251,365

2013

$3,655 (+3.6%)

$73,371 + $177,994

$251,365

2012

$3,530 (+2.8%)

$73,040 + $177,190

$250,230

2011

$3,433 (+1.8%)

$71,608 + $173,716

$245,324

2010

$3,372 (+0.3%)

$70,204 + $170,310

$240,514

2009

$3,363 (+2.8%)

$69,680 + $169,038

$238,718

2008

$3,271

$69,846 + $169,440

$239,286

Tax history for 2139 Mount Diablo St #1

Year

Property tax

Land + Additions

Assessment*

2025

$10,464 (−4.7%)

$515,100 + $275,400

$790,500

2024

$10,976 (+2.1%)

$505,000 + $270,000

$775,000

2023

$10,750 (+120.2%)

$624,240 + $208,080

$832,320

2022

$4,883 (+3.3%)

$612,000 + $204,000

$816,000

2021

$4,725 (+1.4%)

$84,749 + $205,607

$290,356

2020

$4,662 (+1.3%)

$83,088 + $201,576

$284,664

2019

$4,604 (+5.1%)

$82,237 + $199,510

$281,747

2018

$4,378 (+4.3%)

$80,625 + $195,599

$276,224

2017

$4,198 (+4.0%)

$77,496 + $188,004

$265,500

2016

$4,035 (+2.8%)

$77,496 + $188,004

$265,500

2015

$3,926 (+3.4%)

$75,977 + $184,318

$260,295

2014

$3,797 (+3.9%)

$73,371 + $177,994

$251,365

2013

$3,655 (+3.6%)

$73,371 + $177,994

$251,365

2012

$3,530 (+2.8%)

$73,040 + $177,190

$250,230

2011

$3,433 (+1.8%)

$71,608 + $173,716

$245,324

2010

$3,372 (+0.3%)

$70,204 + $170,310

$240,514

2009

$3,363 (+2.8%)

$69,680 + $169,038

$238,718

2008

$3,271

$69,846 + $169,440

$239,286

*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

NTS

North Todos Santos District

The NTS district provides for flexible, reuse, and building expansions that blend with the scale of the existing neighborhood buildings to encourage retention and preservation of buildings, many of which have special architectural and historical significance.

Permitted uses

Include but are not limited to:

Housing-Single unit
Housing-Senior
Recreation
Agriculture-Cropland
Agriculture-Grove / orchard / vineyard
Park & open space

Property details

Interior

Room Information
# of Rooms: 8

Exterior

Property Information
Subdivision Name: TODOS SANTOS
Living Sq. Ft: 1,760
Ground Floor Sq. Ft: 880
Building Sq. Ft: 1,760
# of Stories: 2
Legal Description: TN OF TODOS SANTOS POR LOT 12 BLK A

Parking & Garage Information
Garage/Parking Sq. Ft: 342

Lot Information
# of Buildings: 1
Land Sq. Ft: 4,375
Legal Lot Number: 12
Legal Block Number: A
Acres: 0.1004
County Use Description: DUPLEX

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 1,760
Stories: 2.0
Lot Size: 4,375 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1971
Year Renovated: 1985
County: Contra Costa County
APN: 1121310195

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Wren Avenue Elementary School

Public K-5 • Assigned • 1.1mi

1/10

Valley View Middle School

Public 6-8 • Assigned • 2.0mi

8/10

Mt. Diablo High School

Public 9-12 • Assigned • 0.3mi

3/10

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

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

4/10 Heat Factor

7 days above 96° 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

18 unhealthy days expected this year, 19 days in 30 years

Provided by First Street

Historical weather

Concord, CA • 94520

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 11.5 hours in June and 4.9 hours in December, placing it above the U.S. average for solar exposure.

11.5 hrs

4.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$737,000 – $892,000

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New listings for sale in 94520

OPEN SAT, 12:30PM TO 3:30PM

$649,000

2 beds1 bath1,238 sq ft

2340 Ranchito Dr, Concord, CA 94520

NEW 21 HRS AGO

$759,000

4 beds2 baths1,577 sq ft

1300 Evergreen Dr, Concord, CA 94520

$259,999

2 beds2 baths1,440 sq ft

2368 Dalis Dr, Concord, CA 94520

COMING SOON

$315,000

2 beds1 bath884 sq ft

2005 Olivera Rd Unit D, Concord, CA 94520

OPEN SAT, 1PM TO 4PM

$445,000

3 beds1.5 baths1,240 sq ft

1289 Pine Creek Way Unit D, Concord, CA 94520

$169,900

2 beds2 baths1,320 sq ft

2097 Dalis Garden Dr #79, Concord, CA 94518

OPEN SAT, 1PM TO 4PM

$319,000

2 beds1.5 baths941 sq ft

1391 Monument Blvd #1, Concord, CA 94520

VIDEO TOUR

$699,000

3 beds2 baths1,170 sq ft

2403 Mountain View Dr, Concord, CA 94520

$695,000

5 beds2 baths1,593 sq ft

2685 Richard Ave, Concord, CA 94520

Home values near 2139 Mount Diablo St #1

Data from public records.

Address	Redfin Estimate
2201 Mount Diablo Street, Concord, CA 4 Beds \| 2 Baths \| 1232 Sq. Ft.	$594,586
2093 Mount Diablo Street #A, Concord, CA - Beds \| - Baths \| 7896 Sq. Ft.	—

Address	Redfin Estimate
2149 Mount Diablo Street #3, Concord, CA 4 Beds \| 2 Baths \| 1760 Sq. Ft.	$755,349
2159 Mount Diablo Street, Concord, CA 3 Beds \| 2 Baths \| 1331 Sq. Ft.	$656,255

Address	Redfin Estimate
2173 Mount Diablo Street #B, Concord, CA 3 Beds \| 2 Baths \| 1320 Sq. Ft.	$562,744
2173 Mount Diablo Street, Concord, CA 3 Beds \| 1 Baths \| 1320 Sq. Ft.	$435,695

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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 94520, CA

Sale history for 2139 Mount Diablo St #1

Tax history for 2139 Mount Diablo St #1

Zoning and permits

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94520

Home values near 2139 Mount Diablo St #1

More real estate resources