OFF MARKET

Off market

$470,756

•

3 ba

•

866

sq ft

20115 Redwood Rd #21, Castro Valley, CA 94546

About this home

20115 Redwood Rd #21 is a 866 square foot condo with 2 bedrooms and 3 bathrooms. Based on Redfin's Castro Valley data, we estimate the home's value is $470,756.

CondoProperty Type

1988Year Built

$544Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$470,756

$9,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 8.8% lower than the average sale price ($516K) of 5 comparable homes.

SOLD FEB 24, 2026
$605,000
A
2 beds2.5 baths866 sq ft
20115 Redwood Rd #9, Castro Valley, CA 94546
SOLD AUG 5, 2026
$447,000
B
2 beds2 baths898 sq ft
2505 Miramar Ave #122, Castro Valley, CA 94546
SOLD SEP 18, 2026
$450,000
C
2 beds2 baths1,025 sq ft
21103 Gary Dr Unit 307D, Castro Valley, CA 94546
SOLD SEP 28, 2026
$510,000
D
2 beds2 baths927 sq ft
946 Elgin St Unit C, Ashland, CA 94580
SOLD JUL 6, 2026
$570,000
E
2 beds2.5 baths1,125 sq ft
19671 Medford Cir #22, Cherryland, CA 94541
HomeSmart PV & Associates

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

Earn from this home

Sell

$445,371

Est. take-home

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Rent

$2,247/mo

Redfin rental estimate

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Market trends in 94546, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

103.4%

0.6% MoM

Median sale price

$1.1M

$823 MoM

Avg. days on market

18d

3 days MoM

Recently sold homes

7 MoM

New listings for sale

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20061 Santa Maria Ave, Castro Valley, CA 94546
OPEN SAT, 1PM TO 4PM
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4 beds2.5 baths2,295 sq ft
2783 Jennifer Dr, Castro Valley, CA 94546
OPEN SAT, 12:30PM TO 2:30PM
$1,175,000
3 beds2 baths1,795 sq ft
19563 Helen Pl, Castro Valley, CA 94546
$1,200,000
4 beds3 baths1,897 sq ft
18153 Judy St, Castro Valley, CA 94546
OPEN SAT, 1PM TO 4PM
$799,888
3 beds1 bath988 sq ft
2240 Lessley Ave, Castro Valley, CA 94546
OPEN SAT, 1PM TO 4PM
$499,000
3 beds2 baths1,354 sq ft
21314 Gary Dr #108, Hayward, CA 94546
OPEN FRI, 5PM TO 6:30PM
$1,498,000
4 beds3 baths3,275 sq ft
19912 Conrad Ct, Castro Valley, CA 94546
OPEN SUN, 1PM TO 4PM
$1,198,000
4 beds2.5 baths2,038 sq ft
3636 Arcadian Dr, Castro Valley, CA 94546
EARLY ACCESS
$550,000
2 beds2 baths1,393 sq ft
21239 Gary Dr #206, Hayward, CA 94546
OPEN SAT, 2PM TO 4PM
$878,000
3 beds1 bath1,092 sq ft
19656 San Miguel Ave, Castro Valley, CA 94546
See all

Provided by Redfin

Sale history for 20115 Redwood Rd #21

Year

Property tax

Land + Additions

Assessment*

2025

$3,889 (+2.6%)

$81,202 + $189,211

$270,413

2024

$3,791 (+2.1%)

$79,610 + $185,502

$265,112

2023

$3,712 (+2.4%)

$78,050 + $181,865

$259,915

2022

$3,624 (+2.8%)

$75,019 + $174,804

$249,823

2021

$3,525 (+2.4%)

$75,019 + $174,804

$249,823

2020

$3,442 (−1.5%)

$73,549 + $171,378

$244,927

2019

$3,495 (+3.0%)

$72,795 + $169,622

$242,417

2018

$3,393 (+2.8%)

$71,368 + $166,296

$237,664

2017

$3,300 (+5.2%)

$68,597 + $159,840

$228,437

2016

$3,138 (+7.1%)

$68,597 + $159,840

$228,437

2015

$2,931 (+1.9%)

$67,252 + $156,707

$223,959

2014

$2,875 (+1.4%)

$64,945 + $151,330

$216,275

2013

$2,836 (+2.4%)

$64,945 + $151,330

$216,275

2012

$2,770 (+1.5%)

$64,652 + $150,646

$215,298

2011

$2,730 (+0.8%)

$63,384 + $147,693

$211,077

2010

$2,708 (−0.1%)

$62,141 + $144,797

$206,938

2009

$2,711 (+4.4%)

$61,677 + $143,716

$205,393

2008

$2,597

$61,824 + $144,057

$205,881

Tax history for 20115 Redwood Rd #21

Year

Property tax

Land + Additions

Assessment*

2025

$3,889 (+2.6%)

$81,202 + $189,211

$270,413

2024

$3,791 (+2.1%)

$79,610 + $185,502

$265,112

2023

$3,712 (+2.4%)

$78,050 + $181,865

$259,915

2022

$3,624 (+2.8%)

$75,019 + $174,804

$249,823

2021

$3,525 (+2.4%)

$75,019 + $174,804

$249,823

2020

$3,442 (−1.5%)

$73,549 + $171,378

$244,927

2019

$3,495 (+3.0%)

$72,795 + $169,622

$242,417

2018

$3,393 (+2.8%)

$71,368 + $166,296

$237,664

2017

$3,300 (+5.2%)

$68,597 + $159,840

$228,437

2016

$3,138 (+7.1%)

$68,597 + $159,840

$228,437

2015

$2,931 (+1.9%)

$67,252 + $156,707

$223,959

2014

$2,875 (+1.4%)

$64,945 + $151,330

$216,275

2013

$2,836 (+2.4%)

$64,945 + $151,330

$216,275

2012

$2,770 (+1.5%)

$64,652 + $150,646

$215,298

2011

$2,730 (+0.8%)

$63,384 + $147,693

$211,077

2010

$2,708 (−0.1%)

$62,141 + $144,797

$206,938

2009

$2,711 (+4.4%)

$61,677 + $143,716

$205,393

2008

$2,597

$61,824 + $144,057

$205,881

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

Zoning

RMX

Residential Mixed Density Districts

Residential mixed density districts, hereinafter designated as RMX, are established to support a mixture of single-family and multi-family residential development in areas close to the commercial business district. The RMX district implements and is consistent with the residential mixed density land use classification of the Castro Valley General Plan.

Permitted uses

Include but are not limited to:

Agriculture-Other
Housing-Group
Housing-Single unit
Housing-Multiple units
Housing-Senior
Agriculture-Cropland
Agriculture-Grove / orchard / vineyard

Property details

Interior

Room Information
# of Rooms: 4

Exterior

Exterior Information
Construction Type: Wood
Building Construction Quality: Average

Property Information
Living Sq. Ft: 866
Building Sq. Ft: 866
# of Units: 1
# of Stories: 2
Legal Description: MAP A5 692

Parking & Garage Information
# of Parking Spaces: 1
Parking Type: Carport
Garage / Carport Type: Carport

Lot Information
# of Buildings: 1
Legal Lot Number: 1
Municipality Name: CASTRO VALLEY UNINCORP
County Use Description: CONDOMINIUMS - SINGLE RESIDENT

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 2
Baths: 3.0
Sq. Ft.: 866
Stories: 2.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1988
Year Renovated: 1988
County: Alameda County
APN: 084A007607700

Home facts updated by county records on Sep 17, 2026

About this building

No units for sale

20115 Redwood Rd, Castro Valley, CA 94546

See photos & sale trends

Photo via 20115 Redwood Rd #20

Units for sale

Unit Information Not Available

There aren't any units for sale in this building.

Around this home

Schools

Castro Valley Elementary School

Public K-5 • Assigned • 0.4mi

6/10

Creekside Middle School

Public 6-8 • Assigned • 0.9mi

10/10

Castro Valley High School

Public 9-12 • Assigned • 0.4mi

9/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

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...
2 weeks ago • Castro Valley
Johnny Singh
Redfin Premier agent
148 deals
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Climate risks

1/10 Flood Factor

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

3/10 Fire Factor

0.62% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 88° 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 • 94546

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

$448,000 – $542,000

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New listings for sale in 94546

OPEN SAT, 1:30PM TO 4PM3D WALKTHROUGH

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20061 Santa Maria Ave, Castro Valley, CA 94546

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19563 Helen Pl, Castro Valley, CA 94546

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18153 Judy St, Castro Valley, CA 94546

OPEN SAT, 1PM TO 4PM

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2240 Lessley Ave, Castro Valley, CA 94546

OPEN SAT, 1PM TO 4PM

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21314 Gary Dr #108, Hayward, CA 94546

OPEN FRI, 5PM TO 6:30PM

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4 beds3 baths3,275 sq ft

19912 Conrad Ct, Castro Valley, CA 94546

OPEN SUN, 1PM TO 4PM

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EARLY ACCESSCOMPASS COMING SOON

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Home values near 20115 Redwood Rd #21

Data from public records.

Address	Redfin Estimate
20115 Redwood Road #29, Castro Valley, CA 2 Beds \| 2.5 Baths \| 866 Sq. Ft.	$547,989
20115 Redwood Road #12, Castro Valley, CA 2 Beds \| 2.5 Baths \| 866 Sq. Ft.	$570,672

Address	Redfin Estimate
20115 Redwood Road #13, Castro Valley, CA 2 Beds \| 2.5 Baths \| 866 Sq. Ft.	$559,519
20115 Redwood Road #17, Castro Valley, CA 2 Beds \| 2.5 Baths \| 866 Sq. Ft.	$502,389

Address	Redfin Estimate
20115 Redwood Road #10, Castro Valley, CA 2 Beds \| 2.5 Baths \| 866 Sq. Ft.	$570,152
20115 Redwood Road #23, Castro Valley, CA 2 Beds \| 2.5 Baths \| 866 Sq. Ft.	$567,749

Property information provided by undefined .

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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 94546, CA

Sale history for 20115 Redwood Rd #21

Tax history for 20115 Redwood Rd #21

Zoning

Property details

About this building

Unit Information Not Available

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94546

Home values near 20115 Redwood Rd #21

More real estate resources