3343 St Marys Rd is a 3,388 square foot house on a 1.98 acre lot with 5 bedrooms and 4 bathrooms. Based on Redfin's Lafayette data, we estimate the home's value is $3,099,753.
Single-familyProperty Type
1928Year Built
1.98 acresLot Size
$915Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$3,099,753
$87K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 3.2% higher than the average sale price ($3.00M) 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
Aug 12, 2010 • Final
Building/residential/al/alteration
Remove the chimney down to the flashing. Replace the brick with stucco to match the existing residence.
Remodel
Jul 12, 2010 • Final
Building - residential re-roof
Install a new composition shingle roof on a residential building.
Roofing
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
Basement Information
Basement Finish: Completely Finished
Heating & Cooling
Heating Fuel Type: Gas
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 2
Has Fireplace
Room Information
# of Rooms: 9
Exterior
Exterior Information
Physical Condition: Good
Foundation Type: Slab
Building Style Type: Contemporary
Building Construction Quality: Good
Exterior Wall: Stucco
Pool Information
Has Pool
Property Information
Subdivision Name: LAGUNA DE LOS PALOS COLORADOS
Living Sq. Ft: 3,388
Ground Floor Sq. Ft: 2,713
Building Sq. Ft: 3,388
# of Stories: 2
Legal Description: POR RO COLORADOS
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Garage/Carport
Garage/Parking Sq. Ft: 714
Lot Information
# of Buildings: 1
Land Sq. Ft: 86,249
Legal Lot Number: 16
Acres: 1.98
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: 4.0
Sq. Ft.: 3,388
Stories: 2.0
Lot Size: 1.98 acres
Style: Single Family Residential
Year Built: 1928
Year Renovated: 1928
County: Contra Costa County
APN: 2390900138
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Burton Valley Elementary School
Public K-5 • Assigned • 1.5mi
9/10
M. H. Stanley Middle School
Public 6-8 • Assigned • 0.6mi
8/10
Acalanes High School
Public 9-12 • Assigned • 1.6mi
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
3/10 Fire Factor
0.31% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 93° expected this year, 15 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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87
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84
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77
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63
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57
45
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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
$2.95M – $3.57M
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