100 Posada Ct is a 2,718 square foot house on a 9,500 square foot lot with 4 bedrooms and 3 bathrooms. Based on Redfin's San Ramon data, we estimate the home's value is $1,670,468.
Single-familyProperty Type
1978Year Built
9,500 sq ftLot Size
$615Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,670,468
$61K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 10.1% lower than the average sale price ($1.86M) 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
$3,655 (+2.3%)
$60,041 + $183,284
$243,325
2024
$3,573 (+2.0%)
$58,864 + $179,691
$238,555
2023
$3,502 (+0.8%)
$57,710 + $176,168
$233,878
2022
$3,475 (+2.4%)
$56,579 + $172,714
$229,293
2021
$3,393 (+2.3%)
$55,470 + $169,328
$224,798
2020
$3,317 (+0.9%)
$54,383 + $166,008
$220,391
2019
$3,288 (+3.8%)
$53,826 + $164,306
$218,132
2018
$3,166 (+4.0%)
$52,771 + $161,085
$213,856
2017
$3,046 (+2.0%)
$50,723 + $154,831
$205,554
2016
$2,985 (+1.9%)
$50,723 + $154,831
$205,554
2015
$2,928 (+2.0%)
$49,729 + $151,796
$201,525
2014
$2,871 (+2.0%)
$48,024 + $146,588
$194,612
2013
$2,816 (+3.5%)
$48,024 + $146,588
$194,612
2012
$2,720 (+2.5%)
$47,807 + $145,926
$193,733
2011
$2,653 (+5.0%)
$46,870 + $143,065
$189,935
2010
$2,526
$45,951 + $140,260
$186,211
2009
$2,527 (+4.7%)
$45,608 + $139,212
$184,820
2008
$2,414
$45,717 + $139,543
$185,260
Tax history for 100 Posada Ct
Year
Property tax
Land + Additions
Assessment*
2025
$3,655 (+2.3%)
$60,041 + $183,284
$243,325
2024
$3,573 (+2.0%)
$58,864 + $179,691
$238,555
2023
$3,502 (+0.8%)
$57,710 + $176,168
$233,878
2022
$3,475 (+2.4%)
$56,579 + $172,714
$229,293
2021
$3,393 (+2.3%)
$55,470 + $169,328
$224,798
2020
$3,317 (+0.9%)
$54,383 + $166,008
$220,391
2019
$3,288 (+3.8%)
$53,826 + $164,306
$218,132
2018
$3,166 (+4.0%)
$52,771 + $161,085
$213,856
2017
$3,046 (+2.0%)
$50,723 + $154,831
$205,554
2016
$2,985 (+1.9%)
$50,723 + $154,831
$205,554
2015
$2,928 (+2.0%)
$49,729 + $151,796
$201,525
2014
$2,871 (+2.0%)
$48,024 + $146,588
$194,612
2013
$2,816 (+3.5%)
$48,024 + $146,588
$194,612
2012
$2,720 (+2.5%)
$47,807 + $145,926
$193,733
2011
$2,653 (+5.0%)
$46,870 + $143,065
$189,935
2010
$2,526
$45,951 + $140,260
$186,211
2009
$2,527 (+4.7%)
$45,608 + $139,212
$184,820
2008
$2,414
$45,717 + $139,543
$185,260
*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
Aug 4, 2016 • Final
Furnace a/c - mechanical (residential)
HVAC
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
Property Information
Subdivision Name: SUBDIVISION 4952
Living Sq. Ft: 2,718
Ground Floor Sq. Ft: 1,428
Building Sq. Ft: 2,718
# of Stories: 2
Legal Description: T04952 L0116 B
Parking & Garage Information
Garage/Parking Sq. Ft: 623
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,500
Legal Lot Number: 116
Acres: 0.2181
County Use Description: SINGLE FAMILY DETACHED WITH MA
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,718
Stories: 2.0
Lot Size: 9,500 square feet
Style: Single Family Residential
Year Built: 1978
Year Renovated: 1979
County: Contra Costa County
APN: 2094210255
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Bollinger Canyon Elementary School
Public K-5 • Assigned • 0.4mi
10/10
Iron Horse Middle School
Public 6-8 • Assigned • 1.2mi
10/10
California High School
Public 9-12 • Assigned • 2.0mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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