3796 Happy Valley Rd is a 7,325 square foot house on a 1.08 acre lot with 5 bedrooms and 5 bathrooms. - it last sold on July 03, 1990 for $911,000. Based on Redfin's Lafayette data, we estimate the home's value is $8,315,067.
Single-familyProperty Type
1994Year Built
1.08 acresLot Size
$1,135Est. Price/Sq.Ft.
6 car garageParking
Source:Public Records
Redfin Estimate
$8,315,067
$7.4M since sold in July 1990$41K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 115.9% higher than the average sale price ($3.85M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40574954
Aug 5, 2014
Listing Removed
—
May 21, 2012
Listed
*
Public Records
Jul 3, 1990
Sold
$911,000
$124/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$84,109 (+1.7%)
$3,346,668 + $4,354,220
$7,700,888
2024
$82,704 (+1.7%)
$3,281,048 + $4,268,844
$7,549,892
2023
$81,350 (+1.5%)
$3,216,714 + $4,185,142
$7,401,856
2022
$80,124 (+3.0%)
$3,153,642 + $4,103,081
$7,256,723
2021
$77,804 (−0.8%)
$3,091,806 + $4,022,629
$7,114,435
2020
$78,395 (+1.5%)
$3,031,183 + $3,943,754
$6,974,937
2019
$77,230 (+3.7%)
$3,000,102 + $3,903,316
$6,903,418
2018
$74,449 (+2.9%)
$2,941,277 + $3,818,546
$6,759,823
2017
$72,359 (+1.7%)
$2,827,064 + $3,593,375
$6,420,439
2016
$71,155 (+2.7%)
$2,827,064 + $3,593,375
$6,420,439
2015
$69,267 (+107.0%)
$2,771,632 + $3,522,917
$6,294,549
2014
$33,459 (+1.0%)
$1,303,663 + $1,596,206
$2,899,869
2013
$33,114 (+3.2%)
$1,303,663 + $1,596,206
$2,899,869
2012
$32,075 (+1.3%)
$1,297,772 + $1,588,992
$2,886,764
2011
$31,679 (+1.3%)
$1,270,005 + $1,554,995
$2,825,000
2010
$31,281 (−0.1%)
$1,247,379 + $1,527,291
$2,774,670
2009
$31,314 (+5.3%)
$1,238,057 + $1,515,877
$2,753,934
2008
$29,724
$1,240,999 + $1,519,479
$2,760,478
Tax history for 3796 Happy Valley Rd
Year
Property tax
Land + Additions
Assessment*
2025
$84,109 (+1.7%)
$3,346,668 + $4,354,220
$7,700,888
2024
$82,704 (+1.7%)
$3,281,048 + $4,268,844
$7,549,892
2023
$81,350 (+1.5%)
$3,216,714 + $4,185,142
$7,401,856
2022
$80,124 (+3.0%)
$3,153,642 + $4,103,081
$7,256,723
2021
$77,804 (−0.8%)
$3,091,806 + $4,022,629
$7,114,435
2020
$78,395 (+1.5%)
$3,031,183 + $3,943,754
$6,974,937
2019
$77,230 (+3.7%)
$3,000,102 + $3,903,316
$6,903,418
2018
$74,449 (+2.9%)
$2,941,277 + $3,818,546
$6,759,823
2017
$72,359 (+1.7%)
$2,827,064 + $3,593,375
$6,420,439
2016
$71,155 (+2.7%)
$2,827,064 + $3,593,375
$6,420,439
2015
$69,267 (+107.0%)
$2,771,632 + $3,522,917
$6,294,549
2014
$33,459 (+1.0%)
$1,303,663 + $1,596,206
$2,899,869
2013
$33,114 (+3.2%)
$1,303,663 + $1,596,206
$2,899,869
2012
$32,075 (+1.3%)
$1,297,772 + $1,588,992
$2,886,764
2011
$31,679 (+1.3%)
$1,270,005 + $1,554,995
$2,825,000
2010
$31,281 (−0.1%)
$1,247,379 + $1,527,291
$2,774,670
2009
$31,314 (+5.3%)
$1,238,057 + $1,515,877
$2,753,934
2008
$29,724
$1,240,999 + $1,519,479
$2,760,478
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Nov 9, 2022 • Final
Building/residential/p/pool
Raise the existing spa and install new pool steps.
Pool and hot tub
Apr 14, 2022 • Final
Building - residential generator
Install a home backup generator and two automatic transfer switches. Relocate the generator as per the revised plan.
Generator
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: 18
Exterior
Pool Information
Has Pool
Property Information
Subdivision Name: ACALANES RANCHO
Living Sq. Ft: 7,325
Ground Floor Sq. Ft: 5,618
Building Sq. Ft: 7,325
# of Stories: 2
Legal Description: POR RO ACALANES
Parking & Garage Information
Garage/Parking Sq. Ft: 523
Lot Information
# of Buildings: 1
Land Sq. Ft: 47,045
Acres: 1.08
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 5.0
Sq. Ft.: 7,325
Stories: 2.0
Lot Size: 1.08 acres
Style: Single Family Residential
Year Built: 1994
Year Renovated: 2000
County: Contra Costa County
APN: 2450200163
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Happy Valley Elementary School
Public K-5 • Assigned • 0.3mi
8/10
M. H. Stanley Middle School
Public 6-8 • Assigned • 1.7mi
8/10
Acalanes High School
Public 9-12 • Assigned • 2.2mi
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
2% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 95° 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
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
$7.90M – $9.56M
Reach more buyers when you sell with Redfin. Save up to $83,151 in fees.3 minutes to get started.