520 Iris Ln is a 3,871 square foot house on a 6,900 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on March 27, 1998 for $555,000. Based on Redfin's San Ramon data, we estimate the home's value is $2,169,972.
Single-familyProperty Type
1992Year Built
6,900 sq ftLot Size
$561Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$2,169,972
$1.6M since sold in March 1998$87K since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 18.4% higher than the average sale price ($1.83M) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #10247528
Aug 11, 2019
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #27247528
Aug 11, 2019
Listing Removed
—
bridgeMLS, Bay East AOR, or Contra Costa AOR #10250559
Apr 1, 1998
Listing Removed
—
Public Records
Mar 27, 1998
Sold
$555,000
$143/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #28250559
Feb 16, 1998
Listing Removed
—
Year
Property tax
Land + Additions
Assessment*
2026
$11,570 (+2.9%)
$342,014 + $561,889
$903,903
2025
$11,241 (+2.5%)
$342,014 + $561,889
$903,903
2024
$10,969 (+1.6%)
$335,308 + $550,872
$886,180
2023
$10,793 (+0.9%)
$328,734 + $540,071
$868,805
2022
$10,692 (+2.2%)
$322,289 + $529,482
$851,771
2021
$10,462 (+0.9%)
$315,970 + $519,100
$835,070
2020
$10,372 (+1.1%)
$309,775 + $508,922
$818,697
2019
$10,255 (+3.5%)
$306,599 + $503,704
$810,303
2018
$9,908 (+2.7%)
$300,588 + $493,828
$794,416
2017
$9,645 (+1.5%)
$288,917 + $474,653
$763,570
2016
$9,503 (+1.4%)
$288,917 + $474,653
$763,570
2015
$9,376 (+1.5%)
$283,252 + $465,347
$748,599
2014
$9,234 (+1.2%)
$273,533 + $449,380
$722,913
2013
$9,121 (+3.2%)
$273,533 + $449,380
$722,913
2012
$8,837 (+2.1%)
$272,297 + $447,350
$719,647
2011
$8,656 (+1.5%)
$266,958 + $438,579
$705,537
2010
$8,531
$261,724 + $429,980
$691,704
2009
$8,525 (+3.5%)
$259,768 + $426,767
$686,535
2008
$8,235
$260,386 + $427,781
$688,167
Tax history for 520 Iris Ln
Year
Property tax
Land + Additions
Assessment*
2026
$11,570 (+2.9%)
$342,014 + $561,889
$903,903
2025
$11,241 (+2.5%)
$342,014 + $561,889
$903,903
2024
$10,969 (+1.6%)
$335,308 + $550,872
$886,180
2023
$10,793 (+0.9%)
$328,734 + $540,071
$868,805
2022
$10,692 (+2.2%)
$322,289 + $529,482
$851,771
2021
$10,462 (+0.9%)
$315,970 + $519,100
$835,070
2020
$10,372 (+1.1%)
$309,775 + $508,922
$818,697
2019
$10,255 (+3.5%)
$306,599 + $503,704
$810,303
2018
$9,908 (+2.7%)
$300,588 + $493,828
$794,416
2017
$9,645 (+1.5%)
$288,917 + $474,653
$763,570
2016
$9,503 (+1.4%)
$288,917 + $474,653
$763,570
2015
$9,376 (+1.5%)
$283,252 + $465,347
$748,599
2014
$9,234 (+1.2%)
$273,533 + $449,380
$722,913
2013
$9,121 (+3.2%)
$273,533 + $449,380
$722,913
2012
$8,837 (+2.1%)
$272,297 + $447,350
$719,647
2011
$8,656 (+1.5%)
$266,958 + $438,579
$705,537
2010
$8,531
$261,724 + $429,980
$691,704
2009
$8,525 (+3.5%)
$259,768 + $426,767
$686,535
2008
$8,235
$260,386 + $427,781
$688,167
*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
Feb 1, 2023 • Final
Miscellaneous - plumbing
Plumbing
Jan 21, 2020 • 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
Heating & Cooling
Air Conditioning Type: Central
Heating Fuel Type: Gas
Heating Type: Forced Air
Fireplace Information
# of Fireplaces: 3
Has Fireplace
Room Information
# of Rooms: 11
Exterior
Exterior Information
Foundation Type: Slab
Exterior Wall: Stucco
Property Information
Subdivision Name: WEST BRANCH SUB 7015
Living Sq. Ft: 3,871
Ground Floor Sq. Ft: 1,847
Building Sq. Ft: 4,465
# of Stories: 2
Legal Description: T7015 L51
Parking & Garage Information
# of Parking Spaces: 3
Parking Type: Built-In Garage
Garage/Parking Sq. Ft: 594
Garage / Carport Type: Built In
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,900
Legal Lot Number: 51
Acres: 0.1584
County Use Description: SINGLE FAMILY
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 3,871
Stories: 2.0
Lot Size: 6,900 square feet
Style: Single Family Residential
Year Built: 1992
Year Renovated: 2000
County: Contra Costa County
APN: 2174010138
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 • 0.6mi
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...