3810 Happy Valley Rd is a 3,178 square foot house on a 0.92 acre lot with 5 bedrooms and 3 bathrooms. - it last sold on May 30, 1996 for $980,000. Based on Redfin's Lafayette data, we estimate the home's value is $3,182,288.
Single-familyProperty Type
1981Year Built
0.92 acresLot Size
$1,001Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$3,182,288
$2.2M since sold in May 1996$15K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 21.5% higher than the average sale price ($2.62M) 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
Jan 19, 2015 • Final
Building - residential mechanical
Replace the existing furnace and air conditioning unit with a new high-efficiency furnace and air conditioner.
HVAC
Jan 30, 2010 • Final
Building/residential/al/alteration
Perform a remodel of the kitchen and bathroom.
Bathroom
Kitchen
Remodel
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
Heating & Cooling
Heating Fuel Type: Gas
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 12
Exterior
Exterior Information
Physical Condition: Good
Foundation Type: Raised W/Crawlspace
Building Style Type: Ranch
Building Construction Quality: Good
Exterior Wall: Wood Shake/Shingle
Pool Information
Has Pool
Property Information
Living Sq. Ft: 3,178
Ground Floor Sq. Ft: 3,178
Building Sq. Ft: 3,178
# of Stories: 1
Legal Description: PCL MAP 88 PG 8 PCL B
Parking & Garage Information
# of Parking Spaces: 3
Parking Type: Garage/Carport
Garage/Parking Sq. Ft: 717
Lot Information
# of Buildings: 1
Land Sq. Ft: 40,075
Acres: 0.92
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 3.0
Sq. Ft.: 3,178
Stories: 1.0
Lot Size: 0.92 acres
Style: Single Family Residential
Year Built: 1981
Year Renovated: 1982
County: Contra Costa County
APN: 2450200130
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 • 1.8mi
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)
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79
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87
58
84
59
77
56
63
48
57
45
Jan
Feb
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May
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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
$3.02M – $3.66M
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