1090 Upper Happy Valley Rd is a 1,826 square foot house on a 10,000 square foot lot with 4 bedrooms and 2 bathrooms. - it last sold on May 02, 1974 for $19,000. Based on Redfin's Lafayette data, we estimate the home's value is $1,598,387.
Single-familyProperty Type
1953Year Built
10,000 sq ftLot Size
$875Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,598,387
$1.6M since sold in May 1974$71K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.7% lower than the average sale price ($1.77M) 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
Jun 5, 2023 • Final
Building - residential re-roof
Remove one layer of composition roofing and install new composition shingles. Replace three broken skylights. A cool roof or cool roof exception is required at final inspection.
Roofing
Nov 17, 2014 • Final
Building - residential mechanical
Replace the furnace and air conditioning unit.
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
Heating & Cooling
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 Style Type: Ranch
Building Construction Quality: Average
Exterior Wall: Wood Siding
Pool Information
Has Pool
Property Information
Subdivision Name: MALLEY ESTATES #1
Living Sq. Ft: 1,826
Ground Floor Sq. Ft: 1,826
Building Sq. Ft: 1,826
# of Stories: 1
Legal Description: MALLEY ESTATES #1 POR LOT 7
Lot Information
# of Buildings: 1
Land Sq. Ft: 10,000
Legal Lot Number: 7
Acres: 0.2296
Depth Footage: 108
Front Footage: 100
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 1,826
Stories: 1.0
Lot Size: 10,000 square feet
Style: Single Family Residential
Year Built: 1953
Year Renovated: 1960
County: Contra Costa County
APN: 2480520093
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Happy Valley Elementary School
Public K-5 • Assigned • 0.7mi
8/10
M. H. Stanley Middle School
Public 6-8 • Assigned • 2.1mi
8/10
Acalanes High School
Public 9-12 • Assigned • 3.0mi
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
0.93% chance of being in a wildfire in next 30 years
3/10 Heat Factor
8 days above 90° expected this year, 17 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
14 unhealthy days expected this year, 15 days in 30 years
Provided by First Street
Historical weather
Lafayette, CA • 94549
Average low and high temperatures (°F)
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43
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81
56
87
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81
60
77
56
63
48
57
45
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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
$1.52M – $1.84M
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