4090 Dunbarton Cir is a 2,073 square foot house on a 10,400 square foot lot with 4 bedrooms and 2 bathrooms. - it last sold on September 20, 1991 for $359,000. Based on Redfin's San Ramon data, we estimate the home's value is $1,636,467.
Single-familyProperty Type
1985Year Built
10,400 sq ftLot Size
$789Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,636,467
$1.3M since sold in September 1991$44K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.9% lower than the average sale price ($1.72M) 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
RS-10
Single-Family Residential Zone
The RS zone is applied to areas of the City appropriate for single-family residential land uses in neighborhoods at a density of three to six units per net acre, subject to appropriate standards. The specific allowable density for each parcel is shown on the Zoning Map by a numerical suffix residential density designator (see Section D2-8). Minimum lot size for new parcels ranges from 3,500 to 12,000 sq ft. Depending upon the applicable residential density designator, the RS zone is consistent with and implements the Single Family Low Density, Single Family Low-Medium Density, and Single Family Medium Density land use classifications of the General Plan.
Permitted uses
Include but are not limited to:
Day care facility
Housing-Single unit
Housing-Senior
Housing-Student
Housing-Other
Sep 27, 2023 • Final
Furnace a/c - mechanical (residential)
HVAC
May 31, 2023 • Final
Photovoltaic - electrical
Electrical
Solar
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: 10
Exterior
Exterior Information
Physical Condition: Good
Building Style Type: Contemporary
Building Construction Quality: Average
Property Information
Living Sq. Ft: 2,073
Ground Floor Sq. Ft: 2,073
Building Sq. Ft: 2,073
# of Stories: 1
Legal Description: T05520 L0008 B
Parking & Garage Information
# of Parking Spaces: 3
Parking Type: Garage/Carport
Garage/Parking Sq. Ft: 615
Lot Information
# of Buildings: 1
Land Sq. Ft: 10,400
Legal Lot Number: 8
Acres: 0.2388
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 2,073
Stories: 1.0
Lot Size: 10,400 square feet
Style: Single Family Residential
Year Built: 1985
Year Renovated: 1986
County: Contra Costa County
APN: 2131120020
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Montevideo Elementary School
Public K-5 • Assigned • 0.2mi
9/10
Pine Valley Middle School
Public 6-8 • Assigned • 1.5mi
10/10
California High School
Public 9-12 • Assigned • 0.8mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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