Welcome to this wonderful corner lot 4BD/2.5BA home + 1BD/1BA detached legal ADU with separate entrance above the 2 car garage. An inviting floor plan features a living room with fireplace, a combo family/dining room, kitchen with breakfast area and laundry room. All four bedrooms are on the second floor and have vaulted ceilings, including an en-suite primary. Access the low maintenance rear yard from a kitchen slider. The bright ADU has a full kitchen, spacious living area, generous bedroom and inside laundry. AC for both units. Solar added in 2016. Near shopping, restaurants and with easy access to HWY 12. Reside in one unit and generate income from the other or ideal for inviting friends/family to stay.
Multi-familyProperty Type
2003Year Built
5,005 sq ftLot Size
$356Est. Price/Sq.Ft.
2 garage spacesParking
Listed by Michael Viani•DRE #01151294• Redfin
•415-218-5791 (agent)
•michael.viani@compass.com (agent)
Bought with Ruben Guerrero•DRE #01467362• W Real Estate
A great home in a great community! This home has a granny flat with a full kitchen, laundry area, 1 bedroom and a full bath! Perfect for rental income or a family member! Great corner lot location. Granny flat has its own address as 1301 Trombetta Street. What an opportunity to have a home with built in cash flow potential.
Public Records
Dec 30, 2011
Sold
$210,000
$96/sq ft
Public Records
Sep 16, 2004
Sold
$535,000
$244/sq ft
Public Records
Jan 6, 2003
Sold
$420,000
$192/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$8,886 (+4.7%)
$307,750 + $461,625
$769,375
2024
$8,491 (+2.4%)
$301,716 + $452,574
$754,290
2023
$8,296 (+110.6%)
$295,800 + $443,700
$739,500
2022
$3,939 (+1.3%)
$290,000 + $435,000
$725,000
2021
$3,888 (+2.7%)
$141,564 + $212,349
$353,913
2020
$3,785 (+1.3%)
$138,789 + $208,186
$346,975
2019
$3,738 (+0.9%)
$137,366 + $206,052
$343,418
2018
$3,704 (+2.2%)
$134,673 + $202,012
$336,685
2017
$3,624 (+4.1%)
$129,445 + $194,168
$323,613
2015
$3,480 (+4.5%)
$126,907 + $190,361
$317,268
2014
$3,330 (−0.4%)
$122,553 + $183,830
$306,383
2013
$3,342 (+1.5%)
$122,553 + $183,830
$306,383
2012
$3,294 (−1.9%)
$122,000 + $183,000
$305,000
2011
$3,358 (+6.3%)
$100,000 + $200,000
$300,000
2010
$3,158 (−16.7%)
$80,000 + $226,000
$306,000
2009
$3,792 (−38.6%)
$76,000 + $214,000
$290,000
2007
$6,172
$148,569 + $419,177
$567,746
Tax history for 1956 Giffen Ave
Year
Property tax
Land + Additions
Assessment*
2025
$8,886 (+4.7%)
$307,750 + $461,625
$769,375
2024
$8,491 (+2.4%)
$301,716 + $452,574
$754,290
2023
$8,296 (+110.6%)
$295,800 + $443,700
$739,500
2022
$3,939 (+1.3%)
$290,000 + $435,000
$725,000
2021
$3,888 (+2.7%)
$141,564 + $212,349
$353,913
2020
$3,785 (+1.3%)
$138,789 + $208,186
$346,975
2019
$3,738 (+0.9%)
$137,366 + $206,052
$343,418
2018
$3,704 (+2.2%)
$134,673 + $202,012
$336,685
2017
$3,624 (+4.1%)
$129,445 + $194,168
$323,613
2015
$3,480 (+4.5%)
$126,907 + $190,361
$317,268
2014
$3,330 (−0.4%)
$122,553 + $183,830
$306,383
2013
$3,342 (+1.5%)
$122,553 + $183,830
$306,383
2012
$3,294 (−1.9%)
$122,000 + $183,000
$305,000
2011
$3,358 (+6.3%)
$100,000 + $200,000
$300,000
2010
$3,158 (−16.7%)
$80,000 + $226,000
$306,000
2009
$3,792 (−38.6%)
$76,000 + $214,000
$290,000
2007
$6,172
$148,569 + $419,177
$567,746
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Permits
Beds
5
Baths
3.5
Stories
2
Lot width
—
Lot depth
—
Lot size
5,005 Sq. Ft.
Year renovated
2003
Sq. Ft.
2,190
Year built
2003
Style
Single Family Residential
County
Sonoma County
APN
125650074000
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 28, 2026.
R-1-6
Single-Family Residential District - 6,000 sq ft
The R-1 zoning district is applied to areas of the City intended to be maintained as residential neighborhoods comprised of detached and attached single-family houses, clustered Residential hillside projects, and small multi-family projects, together with compatible accessory uses. The maximum allowable density ranges from two to 13 dwellings per acre, with the specific allowable density for each parcel shown on the zoning map by a numerical suffix to the R-1 map symbol see Section 20-22.040. The R-1 zoning district implements and is consistent with the Residential Very Low Density where residential clustered on hillsides is desirable, Low Density or Open Space, Low Density, and Medium Low Density land use classifications of the General Plan.
Permitted uses
Include but are not limited to:
Agriculture-Other
Day care facility
Healthcare-Other
Housing-Single unit
Housing-Student
Housing-Other
Infrastructure-Other
Housing-Mobile home park
Nov 18, 2016 • Final
Residential addition-alteration
Install a roof-mounted solar system with 16 panels on a residential building.
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.