Google street view image for 20 Rialto Dr, Clayton, CA 94517

Off market jun 1989 for $275K

$1,102,289

Est. refi paymentEst. refi $1,706/mo

•

3 ba

•

2,391

sq ft

20 Rialto Dr, Clayton, CA 94517

About this home

20 Rialto Dr is a 2,391 square foot house on a 9,520 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on June 07, 1989 for $275,000. Based on Redfin's Clayton data, we estimate the home's value is $1,102,289.

Single-familyProperty Type

1976Year Built

9,520 sq ftLot Size

$461Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,102,289

$827K since sold in June 1989$4,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.6% lower than the average sale price ($1.11M) of 5 comparable homes.

SOLD AUG 31, 2026
$995,000
A
4 beds2.5 baths2,420 sq ft
8 Mirango Ct, Clayton, CA 94517
Roots Real Estate Group
SOLD JUN 18, 2026
$1,040,000
B
4 beds2.5 baths2,368 sq ft
55 Regency Dr, Clayton, CA 94517
SOLD OCT 2, 2026
$1,168,000
C
4 beds2.5 baths2,032 sq ft
726 Bloching Cir, Clayton, CA 94517
SOLD SEP 11, 2026
$1,175,000
D
4 beds2.5 baths2,011 sq ft
911 Berendsen Ct, Clayton, CA 94517
SOLD OCT 15, 2026
$1,167,000
E
4 beds2.5 baths2,010 sq ft
608 W Myrick Ct, Clayton, CA 94517

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Earn from this home

Sell

$1,043,419

Est. take-home

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Refinance

Est. cash available

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Rent

$4,936/mo

Redfin rental estimate

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Market trends in 94517, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

100.7%

0.4% MoM

Median sale price

$1.1M

$3K MoM

Avg. days on market

21d

10 days MoM

Recently sold homes

4 MoM

New listings for sale

OPEN SUN, 2PM TO 4PM
$1,200,000
4 beds2 baths2,343 sq ft
214 Mt Wilson Pl, Clayton, CA 94517
OPEN TODAY, 1PM TO 4PM
$1,279,000
4 beds2 baths1,625 sq ft
21 Gibson Ln, Clayton, CA 94517
See all

Provided by Redfin

Sale history for 20 Rialto Dr

Year

Property tax

Land + Additions

Assessment*

2026

$8,920 (+2.5%)

$218,568 + $468,007

$686,575

2025

$8,701 (+2.6%)

$218,568 + $468,007

$686,575

2024

$8,483 (+2.0%)

$214,283 + $458,831

$673,114

2023

$8,321 (+1.4%)

$210,082 + $449,835

$659,917

2022

$8,206 (+2.5%)

$205,963 + $441,015

$646,978

2021

$8,004 (+0.8%)

$201,925 + $432,368

$634,293

2020

$7,941 (+1.2%)

$197,966 + $423,891

$621,857

2019

$7,845 (+3.9%)

$195,937 + $419,545

$615,482

2018

$7,550 (+3.4%)

$192,096 + $411,319

$603,415

2017

$7,301 (+2.8%)

$184,638 + $395,348

$579,986

2016

$7,104 (+1.1%)

$184,638 + $395,348

$579,986

2015

$7,025 (+1.7%)

$181,018 + $387,597

$568,615

2014

$6,907 (+2.8%)

$174,807 + $374,297

$549,104

2013

$6,722 (+6.9%)

$174,807 + $374,297

$549,104

2012

$6,286 (−1.1%)

$174,017 + $372,606

$546,623

2011

$6,357 (+1.2%)

$162,358 + $347,642

$510,000

2010

$6,280 (+0.4%)

$167,260 + $358,138

$525,398

2009

$6,256 (+2.7%)

$166,010 + $355,462

$521,472

2008

$6,094

$166,405 + $356,307

$522,712

Tax history for 20 Rialto Dr

Year

Property tax

Land + Additions

Assessment*

2026

$8,920 (+2.5%)

$218,568 + $468,007

$686,575

2025

$8,701 (+2.6%)

$218,568 + $468,007

$686,575

2024

$8,483 (+2.0%)

$214,283 + $458,831

$673,114

2023

$8,321 (+1.4%)

$210,082 + $449,835

$659,917

2022

$8,206 (+2.5%)

$205,963 + $441,015

$646,978

2021

$8,004 (+0.8%)

$201,925 + $432,368

$634,293

2020

$7,941 (+1.2%)

$197,966 + $423,891

$621,857

2019

$7,845 (+3.9%)

$195,937 + $419,545

$615,482

2018

$7,550 (+3.4%)

$192,096 + $411,319

$603,415

2017

$7,301 (+2.8%)

$184,638 + $395,348

$579,986

2016

$7,104 (+1.1%)

$184,638 + $395,348

$579,986

2015

$7,025 (+1.7%)

$181,018 + $387,597

$568,615

2014

$6,907 (+2.8%)

$174,807 + $374,297

$549,104

2013

$6,722 (+6.9%)

$174,807 + $374,297

$549,104

2012

$6,286 (−1.1%)

$174,017 + $372,606

$546,623

2011

$6,357 (+1.2%)

$162,358 + $347,642

$510,000

2010

$6,280 (+0.4%)

$167,260 + $358,138

$525,398

2009

$6,256 (+2.7%)

$166,010 + $355,462

$521,472

2008

$6,094

$166,405 + $356,307

$522,712

*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

Planned Development District

The major purposes of the Planned Development District are: To implement the objectives of the General Plan; To conserve outstanding natural and archeological features; To provide more private and public open space; To encourage building variety and innovative approaches in environmental design. The Planned Development District permits, for example, mixed land uses, varied setbacks and building heights and diverse lot sizes; To promote economy and efficiency through shared facilities and services.

Permitted uses

Include but are not limited to:

Housing-Single unit

May 19, 2022 • Final

Building/residential/al/alteration

Replace the shower, valve, walls, and pan in the master bathroom. Install a new shower valve, wall tile, and shower pan in the hall bathroom.

Bathroom

Plumbing

Mar 24, 2022 • Final

Permit submittal

Renovate the master bathroom by replacing the shower valve, shower walls, and shower pan with cultured marble. Renovate the hall bathroom by replacing the shower valve, wall tile, and shower pan.

Bathroom

Plumbing

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

Room Information
# of Rooms: 10

Exterior

Pool Information
Has Pool

Property Information
Subdivision Name: SUBDIVISION 4643
Living Sq. Ft: 2,391
Ground Floor Sq. Ft: 2,391
Building Sq. Ft: 2,391
# of Stories: 1
Legal Description: T04643 L0001 B EX MR

Parking & Garage Information
Garage/Parking Sq. Ft: 433

Lot Information
# of Buildings: 1
Land Sq. Ft: 9,520
Legal Lot Number: 1
Acres: 0.2185
County Use Description: SINGLE FAMILY

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,391
Stories: 1.0
Lot Size: 9,520 square feet
Style: Single Family Residential
Year Built: 1976
Year Renovated: 1977
County: Contra Costa County
APN: 1193510011

Home facts updated by county records on Oct 30, 2026

Around this home

Schools

Mt. Diablo Elementary School

Public K-5 • Assigned • 1.6mi

9/10

Diablo View Middle School

Public 6-8 • Assigned • 0.7mi

9/10

Northgate High School

Public 9-12 • Assigned • 4.8mi

9/10

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

4/10 Heat Factor

10 days above 93° expected this year, 19 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

9/10 Air Factor

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

Provided by First Street

Historical weather

Clayton, CA • 94517

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 11.8 hours in June and 4.8 hours in December, placing it above the U.S. average for solar exposure.

11.8 hrs

4.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.05M – $1.27M

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New listings for sale in 94517

OPEN SUN, 2PM TO 4PM

$1,200,000

4 beds2 baths2,343 sq ft

214 Mt Wilson Pl, Clayton, CA 94517

Upgraded kitchen • Local restaurants • Quaint shops

OPEN TODAY, 1PM TO 4PM

$1,279,000

4 beds2 baths1,625 sq ft

21 Gibson Ln, Clayton, CA 94517

Private lot • Park-like setting • New sheetrock

Home values near 20 Rialto Dr

Data from public records.

Address	Redfin Estimate
2 Rialto Drive, Clayton, CA 3 Beds \| 2 Baths \| 1648 Sq. Ft.	$1,104,702
14 Rialto Drive, Clayton, CA 3 Beds \| 2.5 Baths \| 2324 Sq. Ft.	$1,130,388

Address	Redfin Estimate
27 Rialto Drive, Clayton, CA 5 Beds \| 2.5 Baths \| 2324 Sq. Ft.	$1,150,351
8 Rialto Drive, Clayton, CA 4 Beds \| 2.5 Baths \| 2032 Sq. Ft.	$1,248,897

Address	Redfin Estimate
39 Rialto Drive, Clayton, CA 4 Beds \| 3 Baths \| 2032 Sq. Ft.	$1,076,110
38 Rialto Drive, Clayton, CA 4 Beds \| 3 Baths \| 2032 Sq. Ft.	$1,043,604

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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 94517, CA

Sale history for 20 Rialto Dr

Tax history for 20 Rialto Dr

Zoning and permits

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94517

Home values near 20 Rialto Dr

More real estate resources