230 Rock Oak Rd is a 1,842 square foot house on a 9,775 square foot lot with 4 bedrooms and 2 bathrooms. Based on Redfin's Walnut Creek data, we estimate the home's value is $1,309,556.
Single-familyProperty Type
1964Year Built
9,775 sq ftLot Size
$711Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,309,556
$1,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 3.5% lower than the average sale price ($1.36M) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$2,366 (+2.8%)
$45,319 + $97,568
$142,887
2024
$2,303 (+2.2%)
$44,431 + $95,655
$140,086
2023
$2,252 (+0.9%)
$43,560 + $93,780
$137,340
2022
$2,233 (+2.8%)
$42,706 + $91,942
$134,648
2021
$2,172 (+3.2%)
$41,869 + $90,140
$132,009
2020
$2,104 (+0.8%)
$41,049 + $88,373
$129,422
2019
$2,087 (+4.1%)
$40,629 + $87,467
$128,096
2018
$2,005 (+4.0%)
$39,833 + $85,752
$125,585
2017
$1,927
$38,287 + $82,423
$120,710
2016
$1,927 (+5.6%)
$38,287 + $82,423
$120,710
2015
$1,824 (+2.5%)
$37,537 + $80,807
$118,344
2014
$1,779 (+3.7%)
$36,250 + $78,035
$114,285
2013
$1,716 (+3.3%)
$36,250 + $78,035
$114,285
2012
$1,661 (+9.9%)
$36,087 + $77,683
$113,770
2011
$1,510 (+2.8%)
$35,380 + $76,160
$111,540
2010
$1,469 (−1.2%)
$34,687 + $74,667
$109,354
2009
$1,488 (+2.1%)
$34,428 + $74,109
$108,537
2008
$1,457
$34,510 + $74,286
$108,796
Tax history for 230 Rock Oak Rd
Year
Property tax
Land + Additions
Assessment*
2025
$2,366 (+2.8%)
$45,319 + $97,568
$142,887
2024
$2,303 (+2.2%)
$44,431 + $95,655
$140,086
2023
$2,252 (+0.9%)
$43,560 + $93,780
$137,340
2022
$2,233 (+2.8%)
$42,706 + $91,942
$134,648
2021
$2,172 (+3.2%)
$41,869 + $90,140
$132,009
2020
$2,104 (+0.8%)
$41,049 + $88,373
$129,422
2019
$2,087 (+4.1%)
$40,629 + $87,467
$128,096
2018
$2,005 (+4.0%)
$39,833 + $85,752
$125,585
2017
$1,927
$38,287 + $82,423
$120,710
2016
$1,927 (+5.6%)
$38,287 + $82,423
$120,710
2015
$1,824 (+2.5%)
$37,537 + $80,807
$118,344
2014
$1,779 (+3.7%)
$36,250 + $78,035
$114,285
2013
$1,716 (+3.3%)
$36,250 + $78,035
$114,285
2012
$1,661 (+9.9%)
$36,087 + $77,683
$113,770
2011
$1,510 (+2.8%)
$35,380 + $76,160
$111,540
2010
$1,469 (−1.2%)
$34,687 + $74,667
$109,354
2009
$1,488 (+2.1%)
$34,428 + $74,109
$108,537
2008
$1,457
$34,510 + $74,286
$108,796
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jan 5, 2021 • Final
Building new construction, additions, alterations or sign
Remodel a bathroom with like-for-like replacements.
Bathroom
Remodel
Aug 5, 2019 • Final
Reroof - multifamily residential, commercial or residential with overlay
Remove the existing tile roof and install new composition shingles on a residential building.
Roofing
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: 9
Exterior
Pool Information
Has Pool
Property Information
Subdivision Name: SUBDIVISION 3209
Living Sq. Ft: 1,842
Ground Floor Sq. Ft: 1,842
Building Sq. Ft: 1,842
# of Stories: 1
Legal Description: TRACT 3209 LOT 4
Parking & Garage Information
Garage/Parking Sq. Ft: 465
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,775
Legal Lot Number: 4
Acres: 0.2244
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 1,842
Stories: 1.0
Lot Size: 9,775 square feet
Style: Single Family Residential
Year Built: 1964
Year Renovated: 1972
County: Contra Costa County
APN: 1342520010
Home facts updated by county records on Oct 9, 2026
Around this home
Schools
Valle Verde Elementary School
Public K-5 • Assigned • 0.3mi
10/10
Foothill Middle School
Public 6-8 • Assigned • 0.8mi
9/10
Northgate High School
Public 9-12 • Assigned • 1.6mi
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
3% 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)
61
40
64
43
72
47
72
49
79
53
84
57
86
59
90
59
85
61
79
54
64
46
57
44
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
$1.25M – $1.51M
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