1139 Upper Happy Valley Rd is a 2,491 square foot house on a 1 acre lot with 3 bedrooms and 4 bathrooms. Based on Redfin's Lafayette data, we estimate the home's value is $2,727,849.
Single-familyProperty Type
1948Year Built
1 acresLot Size
$1,095Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,727,849
$1,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 0.3% lower than the average sale price ($2.74M) of 6 comparable homes.
Construct a retaining wall on the west side of the property using concrete and rebar according to the provided plans.
Grading
Aug 6, 2024 • Active
Building/residential/r/new single family-duplex
Construct a new single-family home with an attached garage. The project includes ember-resistant construction, fire sprinklers, and a solar photovoltaic system.
Electrical
Fire sprinkler
New construction
Solar
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
Air Conditioning Type: Central
Heating Fuel Type: Gas
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 9
Exterior
Exterior Information
Physical Condition: Good
Foundation Type: Raised W/Crawlspace
Building Construction Quality: Good
Exterior Wall: Stucco
Pool Information
Has Pool
View Information
View: Good
Property Information
Subdivision Name: ACALANAS RHO
Living Sq. Ft: 2,491
Ground Floor Sq. Ft: 2,491
Building Sq. Ft: 2,491
# of Stories: 1
Legal Description: RO ACALANES
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 440
Garage / Carport Type: Detached
Lot Information
# of Buildings: 2
Land Sq. Ft: 43,560
Acres: 1
Depth Footage: 296
Front Footage: 147
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2024
Public facts
Beds: 3
Baths: 4.0
Sq. Ft.: 2,491
Stories: 1.0
Lot Size: 1 acres
Style: Single Family Residential
Year Built: 1948
Year Renovated: 1978
County: Contra Costa County
APN: 2470600152
Home facts updated by county records on Jul 7, 2025
Around this home
Schools
Happy Valley Elementary School
Public K-5 • Assigned • 0.6mi
8/10
M. H. Stanley Middle School
Public 6-8 • Assigned • 2.2mi
8/10
Acalanes High School
Public 9-12 • Assigned • 3.0mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Historical weather
Lafayette, CA • 94549
Average low and high temperatures (°F)
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77
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63
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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
$2.59M – $3.14M
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