185 Summit Rd is a 1,255 square foot house on a 1.23 acre lot with 3 bedrooms and 1 bathroom. - it last sold on March 15, 2005 for $885,000. Based on Redfin's Walnut Creek data, we estimate the home's value is $1,413,966.
Single-familyProperty Type
1953Year Built
1.23 acresLot Size
$1,127Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$1,413,966
$529K since sold in March 2005$12K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.7% higher than the average sale price ($1.35M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40058024
Feb 22, 2005
Listing Removed
—
Year
Property tax
Land + Additions
Assessment*
2026
$15,091 (+2.3%)
$1,066,338 + $194,573
$1,260,911
2025
$14,749 (+1.4%)
$1,066,338 + $194,573
$1,260,911
2024
$14,549 (+2.4%)
$1,045,430 + $190,758
$1,236,188
2023
$14,205 (+2.3%)
$1,024,932 + $187,018
$1,211,950
2022
$13,892 (+9.0%)
$1,004,836 + $183,351
$1,188,187
2021
$12,742 (+5.9%)
$985,134 + $179,756
$1,164,890
2020
$12,032 (+1.6%)
$905,309 + $165,191
$1,070,500
2019
$11,843 (+5.0%)
$850,000 + $155,000
$1,005,000
2018
$11,284 (+6.2%)
$828,775 + $151,225
$980,000
2017
$10,629 (+8.7%)
$749,280 + $136,720
$886,000
2016
$9,782 (+5.8%)
$749,280 + $136,720
$886,000
2015
$9,248 (+5.7%)
$684,161 + $124,839
$809,000
2014
$8,748 (+20.6%)
$606,357 + $110,643
$717,000
2013
$7,254 (+13.6%)
$606,357 + $110,643
$717,000
2012
$6,383 (−12.0%)
$496,841 + $90,659
$587,500
2011
$7,252 (−14.9%)
$437,289 + $78,711
$516,000
2010
$8,526 (+13.0%)
$504,662 + $90,838
$595,500
2009
$7,545 (−13.0%)
$608,899 + $109,601
$718,500
2008
$8,672
$540,678 + $97,322
$638,000
Tax history for 185 Summit Rd
Year
Property tax
Land + Additions
Assessment*
2026
$15,091 (+2.3%)
$1,066,338 + $194,573
$1,260,911
2025
$14,749 (+1.4%)
$1,066,338 + $194,573
$1,260,911
2024
$14,549 (+2.4%)
$1,045,430 + $190,758
$1,236,188
2023
$14,205 (+2.3%)
$1,024,932 + $187,018
$1,211,950
2022
$13,892 (+9.0%)
$1,004,836 + $183,351
$1,188,187
2021
$12,742 (+5.9%)
$985,134 + $179,756
$1,164,890
2020
$12,032 (+1.6%)
$905,309 + $165,191
$1,070,500
2019
$11,843 (+5.0%)
$850,000 + $155,000
$1,005,000
2018
$11,284 (+6.2%)
$828,775 + $151,225
$980,000
2017
$10,629 (+8.7%)
$749,280 + $136,720
$886,000
2016
$9,782 (+5.8%)
$749,280 + $136,720
$886,000
2015
$9,248 (+5.7%)
$684,161 + $124,839
$809,000
2014
$8,748 (+20.6%)
$606,357 + $110,643
$717,000
2013
$7,254 (+13.6%)
$606,357 + $110,643
$717,000
2012
$6,383 (−12.0%)
$496,841 + $90,659
$587,500
2011
$7,252 (−14.9%)
$437,289 + $78,711
$516,000
2010
$8,526 (+13.0%)
$504,662 + $90,838
$595,500
2009
$7,545 (−13.0%)
$608,899 + $109,601
$718,500
2008
$8,672
$540,678 + $97,322
$638,000
*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
R20
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
Jul 9, 2016 • Final
Mechanical, electrical, or plumbing only
Install a new air conditioning system with electrical hookups and replace the furnace.
HVAC
Jun 29, 1995 • Final
Residential
Construct a new single-family home.
New construction
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: 6
Exterior
Property Information
Subdivision Name: RANCHO SAN MIGUEL
Living Sq. Ft: 1,255
Ground Floor Sq. Ft: 1,255
Building Sq. Ft: 1,255
# of Stories: 1
Legal Description: WALNUT HGTS POR LOT 1 BLK 3
Parking & Garage Information
Garage/Parking Sq. Ft: 400
Lot Information
# of Buildings: 1
Land Sq. Ft: 53,579
Legal Lot Number: 1
Legal Block Number: 3
Acres: 1.23
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,255
Stories: 1.0
Lot Size: 1.23 acres
Style: Single Family Residential
Year Built: 1953
Year Renovated: 1953
County: Contra Costa County
APN: 1791000274
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
K - 12
Preschool & daycare
Indian Valley Elementary School
Public K-5 • Assigned • 0.7mi
10/10
Walnut Creek Intermediate School
Public 6-8 • Assigned • 0.9mi
9/10
Las Lomas High School
Public 9-12 • Assigned • 0.9mi
10/10
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
4/10 Fire Factor
1% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 96° 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
74
52
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
$1.34M – $1.63M
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