170 Valdivia Cir is a 1,880 square foot house on a 4,950 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on April 29, 2004 for $635,000. Based on Redfin's San Ramon data, we estimate the home's value is $1,433,499.
Single-familyProperty Type
1980Year Built
4,950 sq ftLot Size
$762Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$1,433,499
$798K since sold in April 2004$21K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 0.7% higher than the average sale price ($1.42M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40004919
Apr 2, 2004
Listing Removed
—
Year
Property tax
Land + Additions
Assessment*
2026
$11,108 (+3.2%)
$536,574 + $384,300
$920,874
2025
$10,760 (+2.1%)
$536,574 + $384,300
$920,874
2024
$10,536 (+1.7%)
$526,053 + $376,765
$902,818
2023
$10,363 (+0.8%)
$515,739 + $369,378
$885,117
2022
$10,284 (+2.2%)
$505,627 + $362,136
$867,763
2021
$10,059 (+1.1%)
$495,713 + $355,036
$850,749
2020
$9,950 (+1.1%)
$485,994 + $348,075
$834,069
2019
$9,840 (+3.9%)
$481,011 + $344,506
$825,517
2018
$9,472 (+3.8%)
$471,580 + $337,751
$809,331
2017
$9,125 (+1.3%)
$453,269 + $324,637
$777,906
2016
$9,005 (+2.6%)
$453,269 + $324,637
$777,906
2015
$8,775 (+7.3%)
$444,382 + $318,272
$762,654
2014
$8,177 (+26.2%)
$398,260 + $285,240
$683,500
2013
$6,482 (+1.4%)
$398,260 + $285,240
$683,500
2012
$6,395 (+0.2%)
$312,023 + $223,477
$535,500
2011
$6,380 (−10.6%)
$312,023 + $223,477
$535,500
2010
$7,140 (−1.5%)
$312,023 + $223,477
$535,500
2009
$7,246 (−7.7%)
$355,141 + $254,359
$609,500
2008
$7,852
$361,260 + $258,740
$620,000
Tax history for 170 Valdivia Cir
Year
Property tax
Land + Additions
Assessment*
2026
$11,108 (+3.2%)
$536,574 + $384,300
$920,874
2025
$10,760 (+2.1%)
$536,574 + $384,300
$920,874
2024
$10,536 (+1.7%)
$526,053 + $376,765
$902,818
2023
$10,363 (+0.8%)
$515,739 + $369,378
$885,117
2022
$10,284 (+2.2%)
$505,627 + $362,136
$867,763
2021
$10,059 (+1.1%)
$495,713 + $355,036
$850,749
2020
$9,950 (+1.1%)
$485,994 + $348,075
$834,069
2019
$9,840 (+3.9%)
$481,011 + $344,506
$825,517
2018
$9,472 (+3.8%)
$471,580 + $337,751
$809,331
2017
$9,125 (+1.3%)
$453,269 + $324,637
$777,906
2016
$9,005 (+2.6%)
$453,269 + $324,637
$777,906
2015
$8,775 (+7.3%)
$444,382 + $318,272
$762,654
2014
$8,177 (+26.2%)
$398,260 + $285,240
$683,500
2013
$6,482 (+1.4%)
$398,260 + $285,240
$683,500
2012
$6,395 (+0.2%)
$312,023 + $223,477
$535,500
2011
$6,380 (−10.6%)
$312,023 + $223,477
$535,500
2010
$7,140 (−1.5%)
$312,023 + $223,477
$535,500
2009
$7,246 (−7.7%)
$355,141 + $254,359
$609,500
2008
$7,852
$361,260 + $258,740
$620,000
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
RS-D
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
Property details
Interior
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 9
Exterior
Exterior Information
Physical Condition: Good
Building Style Type: Contemporary
Construction Type: Frame
Building Construction Quality: Average
Exterior Wall: Stucco
Property Information
Subdivision Name: TWIN CRKS SOUTH
Living Sq. Ft: 1,880
Ground Floor Sq. Ft: 1,052
Building Sq. Ft: 2,374
# of Stories: 2
Legal Description: T05217 L0092 B
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Built-In Garage
Garage/Parking Sq. Ft: 494
Garage / Carport Type: Built In
Lot Information
# of Buildings: 1
Land Sq. Ft: 4,950
Legal Lot Number: 92
Acres: 0.1136
County Use Description: SINGLE FAMILY DETACHED WITH MA
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 1,880
Stories: 2.0
Lot Size: 4,950 square feet
Style: Single Family Residential
Year Built: 1980
Year Renovated: 1981
County: Contra Costa County
APN: 2095220105
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
K - 12
Preschool & daycare
Bollinger Canyon Elementary School
Public K-5 • Assigned • 0.2mi
10/10
Iron Horse Middle School
Public 6-8 • Assigned • 0.8mi
10/10
California High School
Public 9-12 • Assigned • 1.7mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
San Ramon, Past 3 months,Median price $1.51M, down 4.5% YoY,Homes sold: 169 in July, up 1%,Days on market 20 days,Market Active but more balanced; slight seller advantage,Bottom line: Prices have softened, but homes are still selling relatively...