645 Castle Rock Rd, Walnut Creek, CA 94598

Off Market Apr 2022 for $2.4M

$2,520,603

Est. refi paymentEst. refi $11,416/mo

•

3,326

sq ft

645 Castle Rock Rd, Walnut Creek, CA 94598

About this home

Single-familyProperty Type

1980Year Built

1.19 acresLot Size

$758Est. Price/Sq.Ft.

3 car garageParking

Listed by Karen Ranger •DRE #00635258 • Karen Ranger Executive Brokers

Bought with Gretchen Bryce •DRE #00612404 • RE/MAX Accord

Redfin checked: a few seconds ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40988426

Redfin Estimate

$2,520,603

$54K since sold in April 2022$17K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 9% higher than the average sale price ($2.31M) of 6 comparable homes.

SOLD JUN 26, 2026
$1,710,000
A
4 beds2.5 baths2,429 sq ft
106 Mandala Ct, Walnut Creek, CA 94596
SOLD JUL 15, 2026
$3,500,000
B
4 beds3.5 baths3,800 sq ft
39 Comistas Ct, Walnut Creek, CA 94598
SOLD JUN 11, 2026
$1,600,000
C
4 beds3 baths2,366 sq ft
1433 Walnut Ave, Walnut Creek, CA 94598
SOLD JUN 18, 2026
$2,500,000
D
4 beds3.5 baths4,256 sq ft
165 Pine Creek Rd, Walnut Creek, CA 94598
SOLD SEP 4, 2026
$2,350,000
E
4 beds2.5 baths2,812 sq ft
779 Woodwind Pl, Walnut Creek, CA 94598
SOLD AUG 12, 2026
$2,210,000
F
4 beds2.5 baths2,628 sq ft
1768 Oro Valley Cir, Walnut Creek, CA 94596

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Earn from this home

Sell

$581,271

Est. take-home

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Refinance

Est. cash available

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Rent

$6,453/mo

Redfin rental estimate

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Market trends in 94598, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

100.6%

0.8% MoM

Median sale price

$1.4M

$101K MoM

Avg. days on market

18d

2 days MoM

Recently sold homes

15 MoM

New listings for sale

OPEN TODAY, 2PM TO 4PM
$899,000
2 beds2.5 baths1,752 sq ft
1931 Stratton Cir, Walnut Creek, CA 94598
COMING SOON
$340,000
1 bed1 bath660 sq ft
1441 Marchbanks Dr #2, Walnut Creek, CA 94598
OPEN TODAY, 1PM TO 3PM
$325,000
1 bed1 bath677 sq ft
100 Kinross Dr #30, Walnut Creek, CA 94598
OPEN TODAY, 1PM TO 4PM
$1,285,000
3 beds2 baths1,242 sq ft
418 Marshall Dr, Walnut Creek, CA 94598
OPEN TODAY, 1PM TO 4PM
$1,895,000
4 beds2.5 baths2,412 sq ft
2548 Casa Grande Ct, Walnut Creek, CA 94598
OPEN TODAY, 1:30PM TO 4PM
$1,649,000
5 beds3 baths2,606 sq ft
1465 Cortez Ct, Walnut Creek, CA 94598
$325,000
1 bed1 bath665 sq ft
1447 Marchbanks Dr #1, Walnut Creek, CA 94598
OPEN TODAY, 12PM TO 2PM
$1,499,900
4 beds2 baths1,890 sq ft
3002 Deerpark Dr, Walnut Creek, CA 94598
OPEN TODAY, 1PM TO 4PM
$2,379,000
4 beds4 baths2,939 sq ft
101 La Bolsa Rd, Walnut Creek, CA 94598
$1,675,000
4 beds2 baths1,930 sq ft
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See all

Provided by Redfin

Sale history for 645 Castle Rock Rd

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #40988426

Apr 11, 2022

Sold

$2,467,000

$742/sq ft

Apr 11, 2022

Listed

$2,500,000

$752/sq ft

Public Records

Feb 23, 2022

Sold

$2,467,000

$742/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40051998

Jan 27, 2005

Sold

$1,145,000

$344/sq ft

Dec 16, 2004

Listing Removed

—

Nov 19, 2004

Listed

$1,285,000

$386/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$25,056 (+3.3%)

$1,330,712 + $764,288

$2,095,000

2024

$24,245 (−0.4%)

$1,394,230 + $800,770

$2,195,000

2023

$24,336 (+162.4%)

$1,352,943 + $777,057

$2,130,000

2022

$9,275 (+2.3%)

$1,353,000 + $777,000

$2,130,000

2021

$9,067 (+1.1%)

$170,754 + $590,279

$761,033

2020

$8,970 (+1.1%)

$167,406 + $578,705

$746,111

2019

$8,870 (+3.8%)

$165,690 + $572,772

$738,462

2018

$8,549 (+3.3%)

$162,442 + $561,542

$723,984

2017

$8,277 (+2.5%)

$156,135 + $539,738

$695,873

2016

$8,079 (+0.7%)

$156,135 + $539,738

$695,873

2015

$8,020 (+1.3%)

$153,074 + $529,155

$682,229

2014

$7,914 (+2.6%)

$147,822 + $510,998

$658,820

2013

$7,712 (+2.1%)

$147,822 + $510,998

$658,820

2012

$7,553 (+3.9%)

$147,154 + $508,689

$655,843

2011

$7,270 (+1.3%)

$144,269 + $498,715

$642,984

2010

$7,176

$141,441 + $488,937

$630,378

2009

$7,174 (+2.5%)

$140,384 + $485,283

$625,667

2008

$6,996

$140,718 + $486,436

$627,154

Tax history for 645 Castle Rock Rd

Year

Property tax

Land + Additions

Assessment*

2025

$25,056 (+3.3%)

$1,330,712 + $764,288

$2,095,000

2024

$24,245 (−0.4%)

$1,394,230 + $800,770

$2,195,000

2023

$24,336 (+162.4%)

$1,352,943 + $777,057

$2,130,000

2022

$9,275 (+2.3%)

$1,353,000 + $777,000

$2,130,000

2021

$9,067 (+1.1%)

$170,754 + $590,279

$761,033

2020

$8,970 (+1.1%)

$167,406 + $578,705

$746,111

2019

$8,870 (+3.8%)

$165,690 + $572,772

$738,462

2018

$8,549 (+3.3%)

$162,442 + $561,542

$723,984

2017

$8,277 (+2.5%)

$156,135 + $539,738

$695,873

2016

$8,079 (+0.7%)

$156,135 + $539,738

$695,873

2015

$8,020 (+1.3%)

$153,074 + $529,155

$682,229

2014

$7,914 (+2.6%)

$147,822 + $510,998

$658,820

2013

$7,712 (+2.1%)

$147,822 + $510,998

$658,820

2012

$7,553 (+3.9%)

$147,154 + $508,689

$655,843

2011

$7,270 (+1.3%)

$144,269 + $498,715

$642,984

2010

$7,176

$141,441 + $488,937

$630,378

2009

$7,174 (+2.5%)

$140,384 + $485,283

$625,667

2008

$6,996

$140,718 + $486,436

$627,154

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

Public record

Public record
Zoning
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

1.19 Acres

Year renovated

1990

Sq. Ft.

3,326

Year built

1980

Style

Single Family Residential

County

Contra Costa County

APN

1391100417

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2026.

R40

Single-Family Residential District

The purpose of the Single-Family Residential Zoning District is to provide for single-family residential development that is consistent with the General Plan. The intent is to promote and encourage a suitable environment for family life. This would include those conditionally permitted uses that are generally an integral part of single-family residential neighborhoods and that are compatible with residential activities including parks, playgrounds, religious assembly, day care, and schools.

Permitted uses

Include but are not limited to:

Housing-Single unit
Housing-Senior
Infrastructure

Dec 11, 2019 • Final

Mechanical, electrical, or plumbing only

Remove and replace the furnace and coil.

HVAC

Jul 9, 2016 • Final

Solar system - commercial

Install a roof-mounted photovoltaic solar system.

Electrical

Solar

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

Parking

Parking Information
Garage Spaces: 3
Covered Spaces: 3
Parking Features: Int Access From Garage, Side Yard Access, Garage Door Opener

Interior

Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 3
Other Bathrooms Included Features: Shower Over Tub, Updated Baths
Primary Bathroom Included Features: Stall Shower, Tub, Updated Baths

Interior Features
Interior Features: Family Room, Formal Dining Room, Kitchen/Family Combo, Office, Storage, Study, Breakfast Bar, Stone Counters, Eat-in Kitchen, Kitchen Island, Pantry, Updated Kitchen
Appliances: Dishwasher, Disposal, Gas Range, Oven, Refrigerator, Dryer, Washer, Gas Water Heater
Laundry Features: Laundry Room
Street Level Features: 4 Bedrooms, 3 Baths, Primary Bedrm Suite - 1, Main Entry
Window Features: Double Pane Windows, Window Coverings
Fireplaces Total: 2
Has Fireplace
Flooring: Hardwood, Carpet

Room Information
Kitchen Features: 220 Volt Outlet,Breakfast Bar,Counter - Stone,Dishwasher,Eat In Kitchen,Garbage Disposal,Gas Range/Cooktop,Island,Oven Built-in,Pantry,Refrigerator,Updated Kitchen
Rooms Total: 10
Fireplace Features: Electric, Family Room
Basement: Crawl Space

Exterior

Building Information
Construction Materials: Wood Shingles
Building Area Total: 3,326

Exterior Features
Patio And Porch Features: Patio
Exterior Features: Back Yard, Front Yard, Side Yard, Sprinklers Automatic, Sprinklers Back, Sprinklers Front, Storage, Terraced Back, Terraced Up
Fencing: Fenced
Roof: Shingle

Pool Information
Pool Features: Spa
Has Spa

Property Information
Living Area: 3326
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1980

Lot Information
Lot Size Square Feet: 51880
Lot Size Area: 1.19
Lot Size Units: Acres
Lot Size Acres: 1.19
Lot Features: Sloped Up

Utilities

Utility Information
Water Source: Private
Electric: Photovoltaics Third-Party Owned, 220 Volts in Kitchen
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Central Air

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 3,326
Stories: 1.0
Lot Size: 1.19 acres
Style: Single Family Residential
Year Built: 1980
Year Renovated: 1990
County: Contra Costa County
APN: 1391100417

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Walnut Acres Elementary School

Public K-5 • Assigned • 1.3mi

8/10

Foothill Middle School

Public 6-8 • Assigned • 1.3mi

9/10

Northgate High School

Public 9-12 • Assigned • 0.3mi

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

5/10 Fire Factor

6% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 95° expected this year, 15 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, 17 days in 30 years

Provided by First Street

Historical weather

Walnut Creek, CA • 94598

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

$2.40M – $2.90M

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Home values near 645 Castle Rock Rd

Data from public records.

Address	Redfin Estimate
715 Castle Rock Road, Walnut Creek, CA 4 Beds \| 3.5 Baths \| 5070 Sq. Ft.	$2,903,794
750 Castle Rock Road, Walnut Creek, CA 3 Beds \| 2 Baths \| 1790 Sq. Ft.	$1,510,767

Address	Redfin Estimate
638 Castle Rock Road, Walnut Creek, CA 4 Beds \| 4 Baths \| 4033 Sq. Ft.	$2,895,461
685 Castle Rock Road, Walnut Creek, CA 6 Beds \| 3.5 Baths \| 3534 Sq. Ft.	$2,780,917

Address	Redfin Estimate
650 Castle Rock Road, Walnut Creek, CA 4 Beds \| 3 Baths \| 3253 Sq. Ft.	$2,156,901
630 Castle Rock Road, Walnut Creek, CA 5 Beds \| 5 Baths \| 4241 Sq. Ft.	$2,713,944

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2022. This data may not match . Learn more.

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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 94598, CA

Sale history for 645 Castle Rock Rd

Tax history for 645 Castle Rock Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94598

Home values near 645 Castle Rock Rd

More real estate resources