275 Castle Hill Ranch Rd is a 3,028 square foot house on a 0.47 acre lot with 4 bedrooms and 3 bathrooms. - it last sold on March 14, 1991 for $575,000. Based on Redfin's Walnut Creek data, we estimate the home's value is $2,118,968.
Single-familyProperty Type
1990Year Built
0.47 acresLot Size
$700Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,118,968
$1.5M since sold in March 1991$66K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 16% lower than the average sale price ($2.52M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jul 9, 2021 • Final
Building - residential solar photovoltaic
Install a roof-mounted photovoltaic system with battery storage and a new load center.
Battery
Electrical
Solar
Jun 17, 2021 • Final
Building - residential electrical
Upgrade the main electrical service 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: 10
Exterior
Property Information
Living Sq. Ft: 3,028
Ground Floor Sq. Ft: 3,028
Building Sq. Ft: 3,028
# of Stories: 1
Legal Description: PCL MAP 151 PG 47 PCL A
Parking & Garage Information
Garage/Parking Sq. Ft: 795
Lot Information
# of Buildings: 1
Land Sq. Ft: 20,300
Acres: 0.466
Zoning Code: R-20
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 3,028
Stories: 1.0
Lot Size: 0.47 acres
Style: Single Family Residential
Year Built: 1990
Year Renovated: 2000
County: Contra Costa County
APN: 1881700361
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Murwood Elementary School
Public K-5 • Assigned • 1.1mi
9/10
Walnut Creek Intermediate School
Public 6-8 • Assigned • 2.8mi
9/10
Las Lomas High School
Public 9-12 • Assigned • 1.5mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
10/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
4/10 Fire Factor
0.93% chance of being in a wildfire in next 30 years
3/10 Heat Factor
8 days above 96° expected this year, 16 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
15 unhealthy days expected this year, 16 days in 30 years
Provided by First Street
Historical weather
Walnut Creek, CA • 94595
Average low and high temperatures (°F)
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39
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43
70
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48
76
52
80
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79
56
86
58
84
58
77
53
63
46
56
43
Jan
Feb
Mar
Apr
May
Jun
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Aug
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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
$2.01M – $2.44M
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