3401 Stone Valley Rd is a 3,398 square foot house on a 0.41 acre lot with 4 bedrooms and 3 bathrooms. - it last sold on March 14, 1997 for $659,000. Based on Redfin's Alamo data, we estimate the home's value is $2,656,885.
Single-familyProperty Type
1983Year Built
0.41 acresLot Size
$782Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,656,885
$2.0M since sold in March 1997$23K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.6% lower than the average sale price ($2.88M) 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.
Zoning and permits
Zoning
Permits
P-1
Planned Unit District
A large-scale integrated development or a general plan special area of concern provides an opportunity for, and requires cohesive design when flexible regulations are applied; whereas the application of conventional regulation, designed primarily for individual lot development, to a large-scale development or special area may create a monotonous and inappropriate neighborhood. The planned unit district is intended to allow diversification in the relationship of various uses, buildings, structures, lot sizes and open space while insuring substantial compliance with the general plan and the intent of the county code in requiring adequate standards necessary to satisfy the requirements of the public health, safety and general welfare. These standards shall be observed without unduly inhibiting the advantages of large-scale site or special area planning.
Permitted uses
Include but are not limited to:
Housing-Single unit
Oct 28, 2025 • Final
Building/residential/p/pool
Resurface a pool and spa.
Pool and hot tub
May 20, 2025 • Final
Building/residential/p/pool
Resurface a residential pool and spa by removing and replacing the existing surface. Replace the lights and install new drain covers that comply with safety standards. No excavation, structural changes, or modifications to electrical or gas services are included.
Pool and hot tub
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
Room Information
# of Rooms: 11
Exterior
Pool Information
Has Pool
Property Information
Living Sq. Ft: 3,398
Ground Floor Sq. Ft: 3,398
Building Sq. Ft: 3,398
# of Stories: 1
Legal Description: T05536 L0001 B
Parking & Garage Information
Garage/Parking Sq. Ft: 788
Lot Information
# of Buildings: 1
Land Sq. Ft: 18,000
Legal Lot Number: 1
Acres: 0.4132
Zoning Code: P-1
County Use Description: SINGLE FAMILY DETACHED WITH MA
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 3,398
Stories: 1.0
Lot Size: 0.41 acres
Style: Single Family Residential
Year Built: 1983
Year Renovated: 1989
County: Contra Costa County
APN: 1937200010
Home facts updated by county records on Oct 10, 2026
Around this home
Schools
Green Valley Elementary School
Public K-5 • Assigned • 1.7mi
10/10
Los Cerros Middle School
Public 6-8 • Assigned • 1.3mi
10/10
Monte Vista High School
Public 9-12 • Assigned • 1.0mi
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
5/10 Fire Factor
7% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 95° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
17 unhealthy days expected this year, 17 days in 30 years
Provided by First Street
Historical weather
Alamo, CA • 94507
Average low and high temperatures (°F)
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86
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81
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76
53
62
44
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43
Jan
Feb
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May
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Sun exposure
In this area, properties receive around 11.8 hours in
June and 4.8 hours in December, placing it above the
U.S. average for solar exposure.
11.8 hrs
4.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$2.53M – $3.06M
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