839 Mariposa Rd is a 1,639 square foot house on a 0.32 acre lot with 3 bedrooms and 2 bathrooms. - it last sold on April 04, 1978 for $48,000. Based on Redfin's Lafayette data, we estimate the home's value is $1,523,597.
Single-familyProperty Type
1942Year Built
0.32 acresLot Size
$930Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,523,597
$1.5M since sold in April 1978$21K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.1% lower than the average sale price ($1.54M) 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
Mar 31, 2014 • Final
Building - residential mechanical
Replace the furnace and ductwork in a residential building.
HVAC
Jul 27, 2012 • Final
Building/residential/al/alteration
Demolish the chimney down to the level of the firebox. Frame a new chimney, install flashing, and apply siding around the existing firebox.
Demolition
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 Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 8
Exterior
Exterior Information
Physical Condition: Good
Building Construction Quality: Good
Property Information
Subdivision Name: LAFAYETTE HEIGHTS
Living Sq. Ft: 1,639
Ground Floor Sq. Ft: 1,639
Building Sq. Ft: 1,639
# of Stories: 1
Legal Description: RESUB LTS 14,16,17&56 LAF HTS POR LT 12
Parking & Garage Information
Garage/Parking Sq. Ft: 380
Lot Information
# of Buildings: 1
Land Sq. Ft: 14,000
Legal Lot Number: 14
Acres: 0.3214
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,639
Stories: 1.0
Lot Size: 0.32 acres
Style: Single Family Residential
Year Built: 1942
Year Renovated: 1974
County: Contra Costa County
APN: 2410400176
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Lafayette Elementary School
Public K-5 • Assigned • 0.6mi
9/10
M. H. Stanley Middle School
Public 6-8 • Assigned • 0.8mi
8/10
Acalanes High School
Public 9-12 • Assigned • 2.1mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
6/10 Flood Factor
Estimated 71-79% chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.62% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 93° 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
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70
50
68
49
75
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79
55
87
58
84
59
77
56
63
48
57
45
Jan
Feb
Mar
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May
Jun
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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
$1.45M – $1.75M
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