528 Iris Ln is a 3,871 square foot house on a 9,040 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on August 14, 2012 for $805,000. Based on Redfin's San Ramon data, we estimate the home's value is $1,807,446.
Single-familyProperty Type
1992Year Built
9,040 sq ftLot Size
$467Est. Price/Sq.Ft.
3 car garageParking
Source:Public Records
Redfin Estimate
$1,807,446
$1.0M since sold in August 2012$26K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.2% lower than the average sale price ($1.95M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40536872
Oct 27, 2011
Listing Removed
—
Year
Property tax
Land + Additions
Assessment*
2026
$12,752 (+2.9%)
$602,900 + $408,212
$1,011,112
2025
$12,387 (+2.5%)
$602,900 + $408,212
$1,011,112
2024
$12,088 (+1.6%)
$591,079 + $400,208
$991,287
2023
$11,895 (+0.9%)
$579,490 + $392,361
$971,851
2022
$11,784 (+2.2%)
$568,128 + $384,668
$952,796
2021
$11,531 (+0.8%)
$556,989 + $377,126
$934,115
2020
$11,437 (+1.1%)
$546,068 + $369,732
$915,800
2019
$11,308 (+3.5%)
$540,469 + $365,941
$906,410
2018
$10,924 (+2.7%)
$529,872 + $358,766
$888,638
2017
$10,633 (+1.5%)
$509,298 + $344,836
$854,134
2016
$10,480 (+1.3%)
$509,298 + $344,836
$854,134
2015
$10,342 (+1.5%)
$499,312 + $338,075
$837,387
2014
$10,189 (+1.2%)
$482,179 + $326,475
$808,654
2013
$10,067 (+11.2%)
$482,179 + $326,475
$808,654
2012
$9,050 (+2.1%)
$480,000 + $325,000
$805,000
2011
$8,862 (+1.5%)
$260,462 + $477,287
$737,749
2010
$8,732
$255,355 + $467,929
$723,284
2009
$8,726 (+2.9%)
$253,447 + $464,432
$717,879
2008
$8,481
$254,050 + $465,536
$719,586
Tax history for 528 Iris Ln
Year
Property tax
Land + Additions
Assessment*
2026
$12,752 (+2.9%)
$602,900 + $408,212
$1,011,112
2025
$12,387 (+2.5%)
$602,900 + $408,212
$1,011,112
2024
$12,088 (+1.6%)
$591,079 + $400,208
$991,287
2023
$11,895 (+0.9%)
$579,490 + $392,361
$971,851
2022
$11,784 (+2.2%)
$568,128 + $384,668
$952,796
2021
$11,531 (+0.8%)
$556,989 + $377,126
$934,115
2020
$11,437 (+1.1%)
$546,068 + $369,732
$915,800
2019
$11,308 (+3.5%)
$540,469 + $365,941
$906,410
2018
$10,924 (+2.7%)
$529,872 + $358,766
$888,638
2017
$10,633 (+1.5%)
$509,298 + $344,836
$854,134
2016
$10,480 (+1.3%)
$509,298 + $344,836
$854,134
2015
$10,342 (+1.5%)
$499,312 + $338,075
$837,387
2014
$10,189 (+1.2%)
$482,179 + $326,475
$808,654
2013
$10,067 (+11.2%)
$482,179 + $326,475
$808,654
2012
$9,050 (+2.1%)
$480,000 + $325,000
$805,000
2011
$8,862 (+1.5%)
$260,462 + $477,287
$737,749
2010
$8,732
$255,355 + $467,929
$723,284
2009
$8,726 (+2.9%)
$253,447 + $464,432
$717,879
2008
$8,481
$254,050 + $465,536
$719,586
*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 19, 2023 • Final
Photovoltaic - electrical
Electrical
Solar
Jun 7, 2022 • Final
Photovoltaic - electrical
Electrical
Solar
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: WEST BRANCH SUB 7015
Living Sq. Ft: 3,871
Ground Floor Sq. Ft: 1,847
Building Sq. Ft: 3,871
# of Stories: 2
Legal Description: T7015 L53
Parking & Garage Information
Garage/Parking Sq. Ft: 594
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,040
Legal Lot Number: 53
Acres: 0.2075
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 3,871
Stories: 2.0
Lot Size: 9,040 square feet
Style: Single Family Residential
Year Built: 1992
Year Renovated: 1992
County: Contra Costa County
APN: 2174010153
Home facts updated by county records on Oct 30, 2026
Around this home
Schools
K - 12
Preschool & daycare
Coyote Creek Elementary School
Public K-5 • Assigned • 0.5mi
10/10
Gale Ranch Middle School
Public 6-8 • Assigned • 1.2mi
10/10
Dougherty Valley High School
Public 9-12 • Assigned • 1.5mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
San Ramon remains competitive, with homes averaging 1 offer and selling in 29 days. Median price is $1.4M (+2.8%), while price per sq. ft. is $677 (-1.2%). Buyers have negotiation opportunities; sellers should price strategically.
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...