3430 St Marys Rd is a 2,649 square foot house on a 9,960 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on June 28, 1985 for $140,000. Based on Redfin's Lafayette data, we estimate the home's value is $2,003,659.
Single-familyProperty Type
1948Year Built
9,960 sq ftLot Size
$756Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,003,659
$1.9M since sold in June 1985$29K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 16.5% lower than the average sale price ($2.40M) 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 14, 2025 • Final
Solarapp+ approved
Install a roof-mounted solar photovoltaic system and an energy storage system on a residential building.
Electrical
Solar
Mar 27, 2024 • Final
Building - residential re-roof
Tear off the existing roof and replace it with a new composition shingle system. A cool roof or cool roof exception is required at final inspection.
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
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: 11
Exterior
Exterior Information
Physical Condition: Good
Foundation Type: Raised W/Crawlspace
Building Style Type: Ranch
Building Construction Quality: Good
Exterior Wall: Wood
Pool Information
Has Pool
Property Information
Subdivision Name: BIRHAVEN GARDENS
Living Sq. Ft: 2,649
Ground Floor Sq. Ft: 2,649
Building Sq. Ft: 2,649
# of Stories: 1
Legal Description: BIRDHAVEN GARDENS LOT 23
Parking & Garage Information
# of Parking Spaces: 2
Garage/Parking Sq. Ft: 600
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,960
Legal Lot Number: 23
Acres: 0.2287
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: 3.0
Sq. Ft.: 2,649
Stories: 1.0
Lot Size: 9,960 square feet
Style: Single Family Residential
Year Built: 1948
Year Renovated: 1985
County: Contra Costa County
APN: 2340610233
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Lafayette Elementary School
Public K-5 • Assigned • 0.5mi
9/10
M. H. Stanley Middle School
Public 6-8 • Assigned • 0.2mi
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
3/10 Flood Factor
Estimated 10-14% chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.46% 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)
60
43
62
46
70
50
68
49
75
52
78
54
79
55
87
58
84
59
77
56
63
48
57
45
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
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
$1.90M – $2.31M
Reach more buyers when you sell with Redfin. Save up to $20,037 in fees.3 minutes to get started.