640 Shellsilver Ct is a 2,895 square foot house on a 6,000 square foot lot with 4 bedrooms and 3 bathrooms. Based on Redfin's San Ramon data, we estimate the home's value is $2,014,846.
Single-familyProperty Type
2011Year Built
6,000 sq ftLot Size
$696Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,014,846
$2,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 3.1% lower than the average sale price ($2.08M) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$14,546 (+2.5%)
$537,959 + $532,434
$1,070,393
2024
$14,193 (+1.7%)
$527,411 + $521,995
$1,049,406
2023
$13,951 (+1.5%)
$517,070 + $511,760
$1,028,830
2022
$13,749 (+2.7%)
$506,932 + $501,726
$1,008,658
2021
$13,389 (+1.2%)
$496,993 + $491,889
$988,882
2020
$13,226 (+1.6%)
$487,249 + $482,245
$969,494
2019
$13,017 (+3.9%)
$482,253 + $477,301
$959,554
2018
$12,532 (+3.7%)
$472,798 + $467,943
$940,741
2017
$12,081 (+1.5%)
$454,440 + $449,773
$904,213
2016
$11,899 (+1.5%)
$454,440 + $449,773
$904,213
2015
$11,725 (+1.5%)
$445,530 + $440,954
$886,484
2014
$11,550 (+1.4%)
$430,242 + $425,824
$856,066
2013
$11,396 (+3.6%)
$430,242 + $425,824
$856,066
2012
$11,004 (+250.7%)
$428,298 + $423,900
$852,198
2011
$3,138 (+61.5%)
$419,900 + $410,000
$829,900
2010
$1,943 (+1.9%)
$152,732
2009
$1,907 (+9.4%)
$151,591
2008
$1,744
$151,952
Tax history for 640 Shellsilver Ct
Year
Property tax
Land + Additions
Assessment*
2025
$14,546 (+2.5%)
$537,959 + $532,434
$1,070,393
2024
$14,193 (+1.7%)
$527,411 + $521,995
$1,049,406
2023
$13,951 (+1.5%)
$517,070 + $511,760
$1,028,830
2022
$13,749 (+2.7%)
$506,932 + $501,726
$1,008,658
2021
$13,389 (+1.2%)
$496,993 + $491,889
$988,882
2020
$13,226 (+1.6%)
$487,249 + $482,245
$969,494
2019
$13,017 (+3.9%)
$482,253 + $477,301
$959,554
2018
$12,532 (+3.7%)
$472,798 + $467,943
$940,741
2017
$12,081 (+1.5%)
$454,440 + $449,773
$904,213
2016
$11,899 (+1.5%)
$454,440 + $449,773
$904,213
2015
$11,725 (+1.5%)
$445,530 + $440,954
$886,484
2014
$11,550 (+1.4%)
$430,242 + $425,824
$856,066
2013
$11,396 (+3.6%)
$430,242 + $425,824
$856,066
2012
$11,004 (+250.7%)
$428,298 + $423,900
$852,198
2011
$3,138 (+61.5%)
$419,900 + $410,000
$829,900
2010
$1,943 (+1.9%)
$152,732
2009
$1,907 (+9.4%)
$151,591
2008
$1,744
$151,952
*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
PD
DVSP
Planned Development Zone
The PD zone is applied to large parcels of land in order to reduce or eliminate the rigidity, delays, and conflicts that otherwise would result from application of zoning standards and procedures designed primarily for small parcels, and to: Ensure orderly and thorough planning and review procedures that will result in quality urban design; Encourage variety and avoid monotony in large developments by allowing greater freedom in selecting the means to provide access, light, open space, and amenity; Provide a mechanism whereby the City may authorize desirable developments consistent with the General Plan without inviting speculative rezoning applications, which, if granted, often could deprive other owners of development opportunities without resulting in construction of the proposed facilities; Encourage allocation and improvement of common open space in residential areas, and provide for open space maintenance at the expense of those who will directly benefit from it; and Encourage the assembly of properties that might otherwise be developed in unrelated increments to the detriment of surrounding neighborhoods. Building intensity may be up to the maximum required by the General Plan land use classification applicable to the site. The PD zone is consistent with and implements all land use classifications of the General Plan.
Zone overlays
Dougherty Valley Specific Plan
Oct 1, 2014 • Final
Photovoltaic - electrical
Electrical
Solar
Aug 14, 2012 • Final
Retaining wall - building miscellaneous
Grading
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: 12
Exterior
Property Information
Subdivision Name: SUBDIVISION 8699
Living Sq. Ft: 2,895
Ground Floor Sq. Ft: 1,305
Building Sq. Ft: 2,895
# of Stories: 2
Legal Description: T8699 L87
Parking & Garage Information
Garage/Parking Sq. Ft: 449
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,000
Legal Lot Number: 87
Acres: 0.1377
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,895
Stories: 2.0
Lot Size: 6,000 square feet
Style: Single Family Residential
Year Built: 2011
Year Renovated: 2011
County: Contra Costa County
APN: 2223800554
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Quail Run Elementary School
Public K-5 • Assigned • 0.7mi
8/10
Gale Ranch Middle School
Public 6-8 • Assigned • 0.3mi
10/10
Dougherty Valley High School
Public 9-12 • Assigned • 0.3mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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