140 Castle Crest Rd is a 2,668 square foot house on a 0.68 acre lot with 5 bedrooms and 3 bathrooms. Based on Redfin's Alamo data, we estimate the home's value is $2,120,324.
Single-familyProperty Type
1974Year Built
0.68 acresLot Size
$795Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,120,324
$277K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.8% lower than the average sale price ($2.16M) 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
$4,935 (+1.6%)
$113,862 + $238,868
$352,730
2024
$4,858 (+2.4%)
$111,630 + $234,185
$345,815
2023
$4,742 (+2.0%)
$109,442 + $229,594
$339,036
2022
$4,650 (+1.1%)
$107,297 + $225,093
$332,390
2021
$4,600 (+1.7%)
$105,194 + $220,680
$325,874
2020
$4,522 (+2.7%)
$103,132 + $216,353
$319,485
2019
$4,404 (+3.4%)
$102,075 + $214,135
$316,210
2018
$4,257 (+2.2%)
$100,074 + $209,937
$310,011
2017
$4,166 (+2.3%)
$96,189 + $201,786
$297,975
2016
$4,074 (+2.5%)
$96,189 + $201,786
$297,975
2015
$3,974 (+1.6%)
$94,303 + $197,830
$292,133
2014
$3,913 (+1.8%)
$91,068 + $191,042
$282,110
2013
$3,845 (+3.4%)
$91,068 + $191,042
$282,110
2012
$3,720 (+1.9%)
$90,657 + $190,179
$280,836
2011
$3,652 (+1.7%)
$88,880 + $186,450
$275,330
2010
$3,590 (+3.3%)
$87,138 + $182,795
$269,933
2009
$3,476 (+1.2%)
$86,487 + $181,429
$267,916
2008
$3,433
$86,693 + $181,861
$268,554
Tax history for 140 Castle Crest Rd
Year
Property tax
Land + Additions
Assessment*
2025
$4,935 (+1.6%)
$113,862 + $238,868
$352,730
2024
$4,858 (+2.4%)
$111,630 + $234,185
$345,815
2023
$4,742 (+2.0%)
$109,442 + $229,594
$339,036
2022
$4,650 (+1.1%)
$107,297 + $225,093
$332,390
2021
$4,600 (+1.7%)
$105,194 + $220,680
$325,874
2020
$4,522 (+2.7%)
$103,132 + $216,353
$319,485
2019
$4,404 (+3.4%)
$102,075 + $214,135
$316,210
2018
$4,257 (+2.2%)
$100,074 + $209,937
$310,011
2017
$4,166 (+2.3%)
$96,189 + $201,786
$297,975
2016
$4,074 (+2.5%)
$96,189 + $201,786
$297,975
2015
$3,974 (+1.6%)
$94,303 + $197,830
$292,133
2014
$3,913 (+1.8%)
$91,068 + $191,042
$282,110
2013
$3,845 (+3.4%)
$91,068 + $191,042
$282,110
2012
$3,720 (+1.9%)
$90,657 + $190,179
$280,836
2011
$3,652 (+1.7%)
$88,880 + $186,450
$275,330
2010
$3,590 (+3.3%)
$87,138 + $182,795
$269,933
2009
$3,476 (+1.2%)
$86,487 + $181,429
$267,916
2008
$3,433
$86,693 + $181,861
$268,554
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Oct 17, 2024 • Final
Building - residential mechanical
Replace an HVAC package unit. A HERS report may be required at the final inspection.
HVAC
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: 12
Exterior
Property Information
Subdivision Name: WALNUT CRK PARK
Living Sq. Ft: 2,668
Ground Floor Sq. Ft: 1,511
Building Sq. Ft: 2,668
# of Stories: 2
Legal Description: WALNUT CREEK PARK POR LOT 10
Parking & Garage Information
Garage/Parking Sq. Ft: 608
Lot Information
# of Buildings: 1
Land Sq. Ft: 29,621
Legal Lot Number: 10
Acres: 0.68
Zoning Code: R-20
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 3.0
Sq. Ft.: 2,668
Stories: 2.0
Lot Size: 0.68 acres
Style: Single Family Residential
Year Built: 1974
Year Renovated: 1975
County: Contra Costa County
APN: 1881900243
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Murwood Elementary School
Public K-5 • Assigned • 0.9mi
9/10
Walnut Creek Intermediate School
Public 6-8 • Assigned • 2.6mi
9/10
Las Lomas High School
Public 9-12 • Assigned • 1.4mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Historical weather
Alamo, CA • 94507
Average low and high temperatures (°F)
58
39
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42
68
46
68
47
74
51
80
54
80
55
86
58
83
57
76
53
62
44
56
43
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
$2.02M – $2.44M
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