3969 Happy Valley Rd is a 2,773 square foot house on a 1.7 acre lot with 4 bedrooms and 3 bathrooms. Based on Redfin's Lafayette data, we estimate the home's value is $2,742,062.
Single-familyProperty Type
1951Year Built
1.7 acresLot Size
$989Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,742,062
$30K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 17.8% lower than the average sale price ($3.34M) 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
$4,915 (+1.8%)
$119,225 + $138,752
$257,977
2024
$4,827 (+2.1%)
$116,888 + $136,032
$252,920
2023
$4,727 (+1.6%)
$114,597 + $133,365
$247,962
2022
$4,652 (+2.9%)
$112,350 + $130,750
$243,100
2021
$4,520 (+1.5%)
$110,148 + $128,187
$238,335
2020
$4,455 (+7.8%)
$107,989 + $125,674
$233,663
2019
$4,132 (+3.5%)
$106,882 + $124,386
$231,268
2018
$3,993 (+1.7%)
$104,787 + $121,948
$226,735
2017
$3,927 (+2.6%)
$100,719 + $117,213
$217,932
2016
$3,827 (+3.0%)
$100,719 + $117,213
$217,932
2015
$3,717 (+1.6%)
$98,745 + $114,915
$213,660
2014
$3,658 (+1.8%)
$95,357 + $110,972
$206,329
2013
$3,592 (+3.2%)
$95,357 + $110,972
$206,329
2012
$3,481 (+2.8%)
$94,927 + $110,471
$205,398
2011
$3,386 (+7.2%)
$93,066 + $108,305
$201,371
2010
$3,157 (+6.3%)
$88,945 + $106,182
$195,127
2009
$2,969 (+1.6%)
$88,281 + $105,389
$193,670
2008
$2,922
$88,491 + $105,640
$194,131
Tax history for 3969 Happy Valley Rd
Year
Property tax
Land + Additions
Assessment*
2025
$4,915 (+1.8%)
$119,225 + $138,752
$257,977
2024
$4,827 (+2.1%)
$116,888 + $136,032
$252,920
2023
$4,727 (+1.6%)
$114,597 + $133,365
$247,962
2022
$4,652 (+2.9%)
$112,350 + $130,750
$243,100
2021
$4,520 (+1.5%)
$110,148 + $128,187
$238,335
2020
$4,455 (+7.8%)
$107,989 + $125,674
$233,663
2019
$4,132 (+3.5%)
$106,882 + $124,386
$231,268
2018
$3,993 (+1.7%)
$104,787 + $121,948
$226,735
2017
$3,927 (+2.6%)
$100,719 + $117,213
$217,932
2016
$3,827 (+3.0%)
$100,719 + $117,213
$217,932
2015
$3,717 (+1.6%)
$98,745 + $114,915
$213,660
2014
$3,658 (+1.8%)
$95,357 + $110,972
$206,329
2013
$3,592 (+3.2%)
$95,357 + $110,972
$206,329
2012
$3,481 (+2.8%)
$94,927 + $110,471
$205,398
2011
$3,386 (+7.2%)
$93,066 + $108,305
$201,371
2010
$3,157 (+6.3%)
$88,945 + $106,182
$195,127
2009
$2,969 (+1.6%)
$88,281 + $105,389
$193,670
2008
$2,922
$88,491 + $105,640
$194,131
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Nov 20, 2023 • Final
Building - residential electrical
Replace an electrical meter panel with a new one of the same amperage in the same location. No new electrical loads are being added.
Electrical
Electric meter
Jul 3, 2023 • Final
Building - residential electrical
Install an electric gate on a driveway.
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: 8
Exterior
Pool Information
Has Pool
Property Information
Subdivision Name: ACALANES RHO
Living Sq. Ft: 2,773
Ground Floor Sq. Ft: 2,773
Building Sq. Ft: 2,773
# of Stories: 1
Legal Description: POR RO ACALANES
Parking & Garage Information
Garage/Parking Sq. Ft: 561
Lot Information
# of Buildings: 1
Land Sq. Ft: 74,052
Legal Lot Number: C
Acres: 1.7
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,773
Stories: 1.0
Lot Size: 1.7 acres
Style: Single Family Residential
Year Built: 1951
Year Renovated: 1955
County: Contra Costa County
APN: 2461600278
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Happy Valley Elementary School
Public K-5 • Assigned • 0.4mi
8/10
M. H. Stanley Middle School
Public 6-8 • Assigned • 2.3mi
8/10
Acalanes High School
Public 9-12 • Assigned • 2.9mi
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
3/10 Heat Factor
7 days above 92° expected this year, 15 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
Lafayette, CA • 94549
Average low and high temperatures (°F)
60
43
62
46
70
50
68
49
75
52
78
54
79
55
87
58
84
59
77
56
63
48
57
45
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
$2.61M – $3.15M
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