Tucked on a quiet court in Twin Creeks South Estates, this beautifully updated home sits on a rare, flat third of an acre — and the space opens up possibilities in every direction.
Est. $5,057 per month, based on comparable rentals
Sale and tax history for 109 Posada Ct
Sale History
Tax History
Date
Event
Price
bridgeMLS, Bay East AOR, or Contra Costa AOR #41131250
May 14, 2026
Sold
$1,630,000
$774/sq ft
Apr 24, 2026
Pending
—
Apr 16, 2026
Listed
$1,648,000
$782/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #41125629
Apr 16, 2026
Listing Removed
—
Mar 25, 2026
Price Changed
*
Mar 5, 2026
Listed
*
Public Records
Aug 27, 1993
Sold
$326,500
$155/sq ft
Public Records
Sep 9, 1983
Sold
$166,000
$79/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$7,005 (+2.2%)
$242,705 + $323,318
$566,023
2024
$6,855 (+1.8%)
$237,947 + $316,979
$554,926
2023
$6,735 (+0.8%)
$233,282 + $310,764
$544,046
2022
$6,683 (+2.3%)
$228,708 + $304,671
$533,379
2021
$6,533 (+1.4%)
$224,224 + $298,698
$522,922
2020
$6,441 (+1.1%)
$219,828 + $292,842
$512,670
2019
$6,372 (+3.9%)
$217,574 + $289,840
$507,414
2018
$6,135 (+3.9%)
$213,308 + $284,157
$497,465
2017
$5,907 (+1.5%)
$205,026 + $273,124
$478,150
2016
$5,817 (+1.5%)
$205,026 + $273,124
$478,150
2015
$5,731 (+1.6%)
$201,006 + $267,769
$468,775
2014
$5,641 (+1.5%)
$194,109 + $258,581
$452,690
2013
$5,560 (+3.2%)
$194,109 + $258,581
$452,690
2012
$5,386 (+2.1%)
$193,232 + $257,413
$450,645
2011
$5,273 (+1.5%)
$189,444 + $252,366
$441,810
2010
$5,195
$185,730 + $247,418
$433,148
2009
$5,199 (+3.8%)
$184,342 + $245,569
$429,911
2008
$5,009
$184,780 + $246,153
$430,933
Public record
Public record
Zoning
Permits
Beds
4
Baths
3
Stories
2
Lot width
—
Lot depth
—
Lot size
0.37 Acres
Year renovated
1979
Sq. Ft.
2,107
Year built
1978
Style
Single Family Residential
County
Contra Costa County
APN
2094210214
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
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
Oct 26, 2015 • 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
Parking
Parking Information
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Garage Door Opener
Interior
Virtual Tour
Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 2
# of Bathrooms Partial: 1
Other Bathrooms Included Features: Shower Over Tub, Updated Baths, Window
Exterior Features: Back Yard, Storage, Garden, Landscape Back, Landscape Front
Fencing: Fenced, Wood
Roof: Shingle
Mobile Home Information
Model: Vallejo
Pool Information
Pool Features: Community
Property Information
Living Area: 2107
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1978
Direction Faces: West
Lot Information
Lot Size Square Feet: 16250
Lot Size Area: 0.37
Lot Size Units: Acres
Lot Size Acres: 0.37
Lot Features: Court, Level, Back Yard, Front Yard, Landscaped
Utilities
Utility Information
Water Source: Public
Sewer: Public Sewer
Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Central Air
Location
Homeowners Association Information
Has Association
Association Amenities: Clubhouse, Greenbelt, Pool, Tennis Court(s)
Association Name: TWIN CREEK ESTATES SO.
Association Fee: $30
Association Fee Includes: Common Area Maint
Association Fee Frequency: Monthly
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,107
Stories: 2.0
Lot Size: 0.37 acres
Style: Single Family Residential
Year Built: 1978
Year Renovated: 1979
County: Contra Costa County
APN: 2094210214
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
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Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2026. This data may not match public records. Learn more.