Google street view image for 2173 Sol St, Castro Valley, CA 94578

Off market

$690,935

•

2 ba

•

1,075

sq ft

2173 Sol St, Castro Valley, CA 94578

About this home

2173 Sol St is a 1,075 square foot multi-family home on a 6,235 square foot lot with 2 bedrooms and 2 bathrooms. Based on Redfin's Castro Valley data, we estimate the home's value is $690,935.

Multi-familyProperty Type

1951Year Built

6,235 sq ftLot Size

$643Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$690,935

$25K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 15.4% lower than the average sale price ($817K) of 5 comparable homes.

SOLD SEP 18, 2026
$729,000
A
3 beds2 baths1,354 sq ft
2082 Placer Dr, Castro Valley, CA 94578
SOLD JUL 22, 2026
$750,000
B
2 beds1 bath1,050 sq ft
2165 Strang Ave, Castro Valley, CA 94578
SOLD SEP 15, 2026
$910,000
C
3 beds2 baths1,392 sq ft
13933 Velarde Dr, San Leandro, CA 94578
SOLD SEP 9, 2026
$840,000
D
2 beds1 bath969 sq ft
16083 Berkshire Dr, Castro Valley, CA 94578
SOLD AUG 6, 2026
$855,000
E
3 beds2 baths1,058 sq ft
1252 Margery Ave, San Leandro, CA 94578

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$654,145

Est. take-home

List your home with Redfin and save $3,455

Market trends in 94578, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

102.1%

0.5% MoM

Median sale price

$838K

$33K MoM

Avg. days on market

26d

0 days MoM

Recently sold homes

3 MoM

New listings for sale

NEW 15 HRS AGO
$54,950
1 bed1 bath400 sq ft
1550 162nd Ave #47, San Leandro, CA 94578
Harmony Communities, Inc.
OPEN SUN, 1PM TO 4PM
$999,999
4 beds3 baths2,482 sq ft
16900 Robey Dr, Castro Valley, CA 94578
3D WALKTHROUGH
$688,888
3 beds1 bath1,076 sq ft
3980 Mission Way, San Leandro, CA 94578
$1,090,000
4 beds4 baths2,186 sq ft
16520-16526 Los Banos St, San Leandro, CA 94578
(415) 595-4600
OPEN SAT, 1PM TO 4PM
$849,000
5 beds4 baths1,828 sq ft
1321 145th Ave, San Leandro, CA 94578
OPEN SUN, 2PM TO 4PM
$999,000
3 beds2.5 baths1,770 sq ft
2121 166th Ave, Castro Valley, CA 94578
See all

Provided by Redfin

Sale history for 2173 Sol St

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

Year

Property tax

Land + Additions

Assessment*

2025

$2,314 (+7.1%)

$37,512 + $33,010

$70,522

2024

$2,161 (−1.6%)

$36,776 + $32,363

$69,139

2023

$2,197 (+3.7%)

$36,055 + $31,729

$67,784

2022

$2,118 (+4.3%)

$34,655 + $30,497

$65,152

2021

$2,032 (+4.3%)

$34,655 + $30,497

$65,152

2020

$1,948 (+2.1%)

$33,976 + $29,899

$63,875

2019

$1,907 (+9.8%)

$33,628 + $29,592

$63,220

2018

$1,737 (+4.3%)

$32,968 + $29,012

$61,980

2017

$1,665 (+5.1%)

$31,688 + $27,886

$59,574

2016

$1,584 (+2.9%)

$31,688 + $27,886

$59,574

2015

$1,540 (+2.1%)

$31,067 + $27,339

$58,406

2014

$1,509 (+2.2%)

$30,001 + $26,401

$56,402

2013

$1,477 (+1.6%)

$30,001 + $26,401

$56,402

2012

$1,454 (+2.7%)

$29,865 + $26,281

$56,146

2011

$1,415

$29,280 + $25,766

$55,046

2010

$1,414 (+1.0%)

$28,706 + $25,261

$53,967

2009

$1,401 (+6.2%)

$28,491 + $25,072

$53,563

2008

$1,319

$28,559 + $25,132

$53,691

Tax history for 2173 Sol St

Year

Property tax

Land + Additions

Assessment*

2025

$2,314 (+7.1%)

$37,512 + $33,010

$70,522

2024

$2,161 (−1.6%)

$36,776 + $32,363

$69,139

2023

$2,197 (+3.7%)

$36,055 + $31,729

$67,784

2022

$2,118 (+4.3%)

$34,655 + $30,497

$65,152

2021

$2,032 (+4.3%)

$34,655 + $30,497

$65,152

2020

$1,948 (+2.1%)

$33,976 + $29,899

$63,875

2019

$1,907 (+9.8%)

$33,628 + $29,592

$63,220

2018

$1,737 (+4.3%)

$32,968 + $29,012

$61,980

2017

$1,665 (+5.1%)

$31,688 + $27,886

$59,574

2016

$1,584 (+2.9%)

$31,688 + $27,886

$59,574

2015

$1,540 (+2.1%)

$31,067 + $27,339

$58,406

2014

$1,509 (+2.2%)

$30,001 + $26,401

$56,402

2013

$1,477 (+1.6%)

$30,001 + $26,401

$56,402

2012

$1,454 (+2.7%)

$29,865 + $26,281

$56,146

2011

$1,415

$29,280 + $25,766

$55,046

2010

$1,414 (+1.0%)

$28,706 + $25,261

$53,967

2009

$1,401 (+6.2%)

$28,491 + $25,072

$53,563

2008

$1,319

$28,559 + $25,132

$53,691

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

Zoning

Single-Family Residence Districts

Single-family residence districts, hereinafter designated as R-1 districts, are established to provide for and protect established neighborhoods of one-family dwellings, and to provide space in suitable locations for additional development of this kind, together with appropriate community facilities and allowance for restricted interim cultivation of the soil compatible with such low-density residential development.

Permitted uses

Include but are not limited to:

Housing-Single unit
Agriculture-Cropland
Agriculture-Grove / orchard

Property details

Interior

Room Information
# of Rooms: 6

Exterior

Exterior Information
Construction Type: Wood
Building Construction Quality: Average

Property Information
Subdivision Name: HILLCREST KNOLLS
Living Sq. Ft: 1,075
Building Sq. Ft: 1,075
# of Units: 2
# of Stories: 1

Lot Information
# of Buildings: 1
Land Sq. Ft: 6,235
Legal Lot Number: 8
Legal Block Number: L
Municipality Name: SAN LORENZO UNINCORP
Acres: 0.1431
County Use Description: DOUBLE OR DUPLEX TYPE - TWO UN

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 2
Baths: 2.0
Sq. Ft.: 1,075
Stories: 1.0
Lot Size: 6,235 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1951
Year Renovated: 1951
County: Alameda County
APN: 080 000603200

Home facts updated by county records on Sep 17, 2026

Around this home

Schools

Corvallis Elementary School

Public K-5 • Assigned • 1.8mi

4/10

Edendale Middle School

Public 6-8 • Assigned • 1.1mi

1/10

San Lorenzo High School

Public 9-12 • Assigned • 1.7mi

3/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Castro Valley remains a highly competitive market. On average, homes are selling for 103.7% of their asking price, with nearly 60% of properties closing above list price.
1 day ago • Castro Valley
Karan Kandel
Redfin agent
13 deals
Was this helpful?
Castro Valley's fall market offers great buyer leverage. While median prices hold steady around $1.2M, increased inventory gives you room to negotiate on homes needing updates. Turnkey properties still move fast in under 15 days, so act quickly with...
3 weeks ago • Castro Valley
Johnny Singh
Redfin Premier agent
148 deals
Was this helpful?

Climate risks

1/10 Flood Factor

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

3/10 Fire Factor

0.15% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 87° expected this year, 14 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

12 unhealthy days expected this year, 12 days in 30 years

Provided by First Street

Historical weather

Castro Valley, CA • 94578

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

11.2 hrs

4.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$657,000 – $795,000

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New listings for sale in 94578

NEW 15 HRS AGO

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1 bed1 bath400 sq ft

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Harmony Communities, Inc.

OPEN SUN, 1PM TO 4PM

$999,999

4 beds3 baths2,482 sq ft

16900 Robey Dr, Castro Valley, CA 94578

3D WALKTHROUGH

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3 beds1 bath1,076 sq ft

3980 Mission Way, San Leandro, CA 94578

$1,090,000

4 beds4 baths2,186 sq ft

16520-16526 Los Banos St, San Leandro, CA 94578

(415) 595-4600

OPEN SAT, 1PM TO 4PMVIDEO TOUR

$849,000

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OPEN SUN, 2PM TO 4PMVIDEO TOUR

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Home values near 2173 Sol St

Data from public records.

Address	Redfin Estimate
2187 Sol St, Castro Valley, CA 3 Beds \| 1.5 Baths \| 1025 Sq. Ft.	$724,850
2135 Sol St, Castro Valley, CA 2 Beds \| 2 Baths \| 1362 Sq. Ft.	$689,666

Address	Redfin Estimate
2160 Sol St, Castro Valley, CA 3 Beds \| 2 Baths \| 1382 Sq. Ft.	$827,674
2203 Sol St, Castro Valley, CA 3 Beds \| 1 Baths \| 1532 Sq. Ft.	$790,017

Address	Redfin Estimate
2149 Sol St, Castro Valley, CA 4 Beds \| 2 Baths \| 1928 Sq. Ft.	$963,190
2131 Sol St, Castro Valley, CA 3 Beds \| 1.5 Baths \| 663 Sq. Ft.	$392,986

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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 94578, CA

Sale history for 2173 Sol St

Tax history for 2173 Sol St

Zoning

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94578

Home values near 2173 Sol St

More real estate resources