923 St Helena Ave is a 1,781 square foot house on a 7,500 square foot lot with 4 bedrooms and 1 bathroom. Based on Redfin's Santa Rosa data, we estimate the home's value is $734,473.
Single-familyProperty Type
1910Year Built
7,500 sq ftLot Size
$412Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$734,473
$4,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 16.4% lower than the average sale price ($878K) 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
$735 (+1.8%)
$21,992 + $45,973
$67,965
2024
$722 (+1.7%)
$21,561 + $45,072
$66,633
2023
$710 (+6.7%)
$21,139 + $44,189
$65,328
2022
$665 (+1.5%)
$20,725 + $43,323
$64,048
2021
$656 (+0.4%)
$20,319 + $42,474
$62,793
2020
$653 (+0.8%)
$19,921 + $41,642
$61,563
2019
$648 (+0.9%)
$19,717 + $41,216
$60,933
2018
$642 (+2.0%)
$19,331 + $40,408
$59,739
2017
$629 (+6.2%)
$18,581 + $38,840
$57,421
2015
$592 (+6.5%)
$18,217 + $38,079
$56,296
2014
$556 (+0.1%)
$17,593 + $36,774
$54,367
2013
$555 (+1.9%)
$17,593 + $36,774
$54,367
2012
$545 (+2.3%)
$17,514 + $36,608
$54,122
2011
$532 (+1.6%)
$17,171 + $35,891
$53,062
2010
$524 (−0.6%)
$16,835 + $35,188
$52,023
2009
$527 (+2.3%)
$16,710 + $34,926
$51,636
2007
$515
$16,422 + $34,323
$50,745
Tax history for 923 St Helena Ave
Year
Property tax
Land + Additions
Assessment*
2025
$735 (+1.8%)
$21,992 + $45,973
$67,965
2024
$722 (+1.7%)
$21,561 + $45,072
$66,633
2023
$710 (+6.7%)
$21,139 + $44,189
$65,328
2022
$665 (+1.5%)
$20,725 + $43,323
$64,048
2021
$656 (+0.4%)
$20,319 + $42,474
$62,793
2020
$653 (+0.8%)
$19,921 + $41,642
$61,563
2019
$648 (+0.9%)
$19,717 + $41,216
$60,933
2018
$642 (+2.0%)
$19,331 + $40,408
$59,739
2017
$629 (+6.2%)
$18,581 + $38,840
$57,421
2015
$592 (+6.5%)
$18,217 + $38,079
$56,296
2014
$556 (+0.1%)
$17,593 + $36,774
$54,367
2013
$555 (+1.9%)
$17,593 + $36,774
$54,367
2012
$545 (+2.3%)
$17,514 + $36,608
$54,122
2011
$532 (+1.6%)
$17,171 + $35,891
$53,062
2010
$524 (−0.6%)
$16,835 + $35,188
$52,023
2009
$527 (+2.3%)
$16,710 + $34,926
$51,636
2007
$515
$16,422 + $34,323
$50,745
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Sep 17, 2021 • Final
Residential addition-alteration
Remove and replace a carport roof using materials that match the existing structure.
Remodel
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
Bathroom Information
# of Full Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 7
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: MCDONALDS ADD
Living Sq. Ft: 1,781
Ground Floor Sq. Ft: 1,457
Building Sq. Ft: 1,781
# of Stories: 2
Legal Description: REMAP FROM 011-102-003-000 - 09/13/97
Parking & Garage Information
Garage/Parking Sq. Ft: 240
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,500
Legal Lot Number: 8
Legal Block Number: 15
Acres: 0.1722
Zoning Code: CITYSR
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 4
Baths: 1.0
Sq. Ft.: 1,781
Stories: 2.0
Lot Size: 7,500 square feet
Style: Single Family Residential
Year Built: 1910
Year Renovated: 1910
County: Sonoma County
APN: 180670003000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Proctor Terrace Elementary School
Public K-6 • Assigned • 0.3mi
4/10
Santa Rosa Middle School
Public 7-8 • Assigned • 0.5mi
2/10
Santa Rosa High School
Public 9-12 • Assigned • 1.1mi
6/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 92° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
15 unhealthy days expected this year, 17 days in 30 years
Provided by First Street
Historical weather
Santa Rosa, CA • 95404
Average low and high temperatures (°F)
63
41
64
44
72
47
70
47
77
51
80
54
82
55
86
55
82
57
79
51
65
46
60
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.1 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.1 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$698,000 – $845,000
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