309 Flax Ln is a 3,189 square foot house on a 8,007 square foot lot with 4 bedrooms and 3 bathrooms. Based on Redfin's San Ramon data, we estimate the home's value is $2,265,420.
Single-familyProperty Type
1995Year Built
8,007 sq ftLot Size
$710Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,265,420
$16K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.9% higher than the average sale price ($2.22M) 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
$9,632 (+2.6%)
$299,812 + $452,136
$751,948
2024
$9,390 (+1.7%)
$293,934 + $443,271
$737,205
2023
$9,236 (+1.0%)
$288,171 + $434,580
$722,751
2022
$9,146 (+2.2%)
$282,521 + $426,059
$708,580
2021
$8,948 (+0.9%)
$276,982 + $417,705
$694,687
2020
$8,866 (+1.1%)
$271,551 + $409,515
$681,066
2019
$8,766 (+3.4%)
$268,767 + $405,316
$674,083
2018
$8,476 (+2.5%)
$263,498 + $397,369
$660,867
2017
$8,267 (+1.6%)
$253,267 + $381,940
$635,207
2016
$8,138 (+1.4%)
$253,267 + $381,940
$635,207
2015
$8,024 (+1.6%)
$248,301 + $374,451
$622,752
2014
$7,897 (+1.3%)
$239,782 + $361,603
$601,385
2013
$7,796 (+3.3%)
$239,782 + $361,603
$601,385
2012
$7,548 (+2.2%)
$238,699 + $359,969
$598,668
2011
$7,388 (+1.5%)
$234,019 + $352,911
$586,930
2010
$7,276 (+0.1%)
$229,431 + $345,992
$575,423
2009
$7,268 (+3.6%)
$227,717 + $343,407
$571,124
2008
$7,014
$228,258 + $344,223
$572,481
Tax history for 309 Flax Ln
Year
Property tax
Land + Additions
Assessment*
2025
$9,632 (+2.6%)
$299,812 + $452,136
$751,948
2024
$9,390 (+1.7%)
$293,934 + $443,271
$737,205
2023
$9,236 (+1.0%)
$288,171 + $434,580
$722,751
2022
$9,146 (+2.2%)
$282,521 + $426,059
$708,580
2021
$8,948 (+0.9%)
$276,982 + $417,705
$694,687
2020
$8,866 (+1.1%)
$271,551 + $409,515
$681,066
2019
$8,766 (+3.4%)
$268,767 + $405,316
$674,083
2018
$8,476 (+2.5%)
$263,498 + $397,369
$660,867
2017
$8,267 (+1.6%)
$253,267 + $381,940
$635,207
2016
$8,138 (+1.4%)
$253,267 + $381,940
$635,207
2015
$8,024 (+1.6%)
$248,301 + $374,451
$622,752
2014
$7,897 (+1.3%)
$239,782 + $361,603
$601,385
2013
$7,796 (+3.3%)
$239,782 + $361,603
$601,385
2012
$7,548 (+2.2%)
$238,699 + $359,969
$598,668
2011
$7,388 (+1.5%)
$234,019 + $352,911
$586,930
2010
$7,276 (+0.1%)
$229,431 + $345,992
$575,423
2009
$7,268 (+3.6%)
$227,717 + $343,407
$571,124
2008
$7,014
$228,258 + $344,223
$572,481
*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-6
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
Jan 22, 2021 • Final
Furnace a/c - mechanical (residential)
HVAC
Feb 26, 2013 • Final
Water heater/softener - plumbing
Plumbing
Water heater
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
Living Sq. Ft: 3,189
Ground Floor Sq. Ft: 1,606
Building Sq. Ft: 3,189
# of Stories: 2
Legal Description: T7015 L30
Parking & Garage Information
Garage/Parking Sq. Ft: 602
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,007
Legal Lot Number: 30
Acres: 0.1838
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 3,189
Stories: 2.0
Lot Size: 8,007 square feet
Style: Single Family Residential
Year Built: 1995
Year Renovated: 1995
County: Contra Costa County
APN: 2173900198
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Coyote Creek Elementary School
Public K-5 • Assigned • 0.6mi
10/10
Gale Ranch Middle School
Public 6-8 • Assigned • 1.2mi
10/10
Dougherty Valley High School
Public 9-12 • Assigned • 1.6mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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