485 Summit Rd is a 1,536 square foot house on a 0.48 acre lot with 3 bedrooms and 2 bathrooms. - it last sold on September 23, 2004 for $750,000. Based on Redfin's Walnut Creek data, we estimate the home's value is $1,437,758.
Single-familyProperty Type
1958Year Built
0.48 acresLot Size
$936Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$1,437,758
$688K since sold in September 2004$13K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.6% higher than the average sale price ($1.37M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40037165
Sep 5, 2004
Listing Removed
—
Public Records
Feb 14, 1989
Sold
$75,240
$49/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$13,027 (+2.3%)
$791,080 + $288,690
$1,079,770
2025
$12,730 (+1.4%)
$791,080 + $288,690
$1,079,770
2024
$12,554 (+2.4%)
$775,569 + $283,030
$1,058,599
2023
$12,256 (+2.2%)
$760,362 + $277,481
$1,037,843
2022
$11,987 (+2.8%)
$745,453 + $272,041
$1,017,494
2021
$11,663 (+1.0%)
$730,837 + $266,707
$997,544
2020
$11,552 (+1.1%)
$716,507 + $261,478
$977,985
2019
$11,425 (+3.5%)
$709,161 + $258,797
$967,958
2018
$11,039 (+3.7%)
$695,256 + $253,723
$948,979
2017
$10,642 (+9.0%)
$668,259 + $225,872
$894,131
2016
$9,766 (+8.8%)
$668,259 + $225,872
$894,131
2015
$8,978 (+1.4%)
$613,547 + $200,953
$814,500
2014
$8,857 (+14.6%)
$555,501 + $178,499
$734,000
2013
$7,727 (+7.2%)
$555,501 + $178,499
$734,000
2012
$7,211 (−4.4%)
$482,847 + $155,153
$638,000
2011
$7,545 (−8.9%)
$440,000 + $160,000
$600,000
2010
$8,284 (−3.1%)
$467,006 + $162,494
$629,500
2009
$8,546 (−1.8%)
$521,533 + $181,467
$703,000
2008
$8,705
$547,499 + $190,501
$738,000
Tax history for 485 Summit Rd
Year
Property tax
Land + Additions
Assessment*
2026
$13,027 (+2.3%)
$791,080 + $288,690
$1,079,770
2025
$12,730 (+1.4%)
$791,080 + $288,690
$1,079,770
2024
$12,554 (+2.4%)
$775,569 + $283,030
$1,058,599
2023
$12,256 (+2.2%)
$760,362 + $277,481
$1,037,843
2022
$11,987 (+2.8%)
$745,453 + $272,041
$1,017,494
2021
$11,663 (+1.0%)
$730,837 + $266,707
$997,544
2020
$11,552 (+1.1%)
$716,507 + $261,478
$977,985
2019
$11,425 (+3.5%)
$709,161 + $258,797
$967,958
2018
$11,039 (+3.7%)
$695,256 + $253,723
$948,979
2017
$10,642 (+9.0%)
$668,259 + $225,872
$894,131
2016
$9,766 (+8.8%)
$668,259 + $225,872
$894,131
2015
$8,978 (+1.4%)
$613,547 + $200,953
$814,500
2014
$8,857 (+14.6%)
$555,501 + $178,499
$734,000
2013
$7,727 (+7.2%)
$555,501 + $178,499
$734,000
2012
$7,211 (−4.4%)
$482,847 + $155,153
$638,000
2011
$7,545 (−8.9%)
$440,000 + $160,000
$600,000
2010
$8,284 (−3.1%)
$467,006 + $162,494
$629,500
2009
$8,546 (−1.8%)
$521,533 + $181,467
$703,000
2008
$8,705
$547,499 + $190,501
$738,000
*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
Feb 23, 2024 • Final
Residential mechanical: hvac, furnace, air conditioner replacement or ductwork only (no relocation)
Replace the air conditioning condenser and furnace.
HVAC
Jul 15, 2022 • Final
Residential electrical: electrical panel or sub-panel replacement or upgrade panel only (not exceeding 200amps & no relocation)
Replace an electrical sub panel.
Electrical
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: 7
Exterior
Pool Information
Has Pool
Property Information
Subdivision Name: SAN MIGUEL RHO
Living Sq. Ft: 1,536
Ground Floor Sq. Ft: 1,536
Building Sq. Ft: 1,536
# of Stories: 1
Legal Description: POR RO SAN MIGUEL .48 AC
Parking & Garage Information
Garage/Parking Sq. Ft: 494
Lot Information
# of Buildings: 1
Land Sq. Ft: 20,909
Acres: 0.48
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,536
Stories: 1.0
Lot Size: 0.48 acres
Style: Single Family Residential
Year Built: 1958
Year Renovated: 1978
County: Contra Costa County
APN: 1791900093
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 • 0.5mi
10/10
Walnut Creek Intermediate School
Public 6-8 • Assigned • 1.1mi
9/10
Las Lomas High School
Public 9-12 • Assigned • 1.1mi
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
$1.37M – $1.65M
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