105 Colgan Ave is a 816 square foot house on a 7,338 square foot lot with 2 bedrooms and 1 bathroom. Based on Redfin's Santa Rosa data, we estimate the home's value is $511,444.
Single-familyProperty Type
1928Year Built
7,338 sq ftLot Size
$627Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$511,444
$3,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 3.8% lower than the average sale price ($532K) 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
$1,355 (+1.6%)
$47,549 + $69,069
$116,618
2024
$1,335 (+1.5%)
$46,617 + $67,715
$114,332
2023
$1,315 (+6.6%)
$45,703 + $66,388
$112,091
2022
$1,234 (+1.2%)
$44,807 + $65,087
$109,894
2021
$1,219 (+0.2%)
$43,929 + $63,811
$107,740
2020
$1,216 (+0.6%)
$43,068 + $62,560
$105,628
2019
$1,209 (+0.6%)
$42,627 + $61,919
$104,546
2018
$1,202 (+1.8%)
$41,792 + $60,705
$102,497
2017
$1,181 (+4.6%)
$40,170 + $58,349
$98,519
2015
$1,129 (+6.4%)
$39,383 + $57,205
$96,588
2014
$1,061
$38,033 + $55,243
$93,276
2013
$1,061 (+1.6%)
$38,033 + $55,243
$93,276
2012
$1,045 (+2.0%)
$37,862 + $54,994
$92,856
2011
$1,024 (+1.5%)
$37,120 + $53,916
$91,036
2010
$1,009 (−0.6%)
$36,393 + $52,859
$89,252
2009
$1,014 (+2.0%)
$36,122 + $52,464
$88,586
2007
$994
$35,499 + $51,558
$87,057
Tax history for 105 Colgan Ave
Year
Property tax
Land + Additions
Assessment*
2025
$1,355 (+1.6%)
$47,549 + $69,069
$116,618
2024
$1,335 (+1.5%)
$46,617 + $67,715
$114,332
2023
$1,315 (+6.6%)
$45,703 + $66,388
$112,091
2022
$1,234 (+1.2%)
$44,807 + $65,087
$109,894
2021
$1,219 (+0.2%)
$43,929 + $63,811
$107,740
2020
$1,216 (+0.6%)
$43,068 + $62,560
$105,628
2019
$1,209 (+0.6%)
$42,627 + $61,919
$104,546
2018
$1,202 (+1.8%)
$41,792 + $60,705
$102,497
2017
$1,181 (+4.6%)
$40,170 + $58,349
$98,519
2015
$1,129 (+6.4%)
$39,383 + $57,205
$96,588
2014
$1,061
$38,033 + $55,243
$93,276
2013
$1,061 (+1.6%)
$38,033 + $55,243
$93,276
2012
$1,045 (+2.0%)
$37,862 + $54,994
$92,856
2011
$1,024 (+1.5%)
$37,120 + $53,916
$91,036
2010
$1,009 (−0.6%)
$36,393 + $52,859
$89,252
2009
$1,014 (+2.0%)
$36,122 + $52,464
$88,586
2007
$994
$35,499 + $51,558
$87,057
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
R-3-15
Multi-Family Residential District - 15 du per acre
The R-3 zoning districts are applied to areas of the City appropriate for residential neighborhoods with medium and higher residential densities, to provide home rental and ownership opportunities, and to provide a full range of choices in housing types to improve access to affordable housing. The maximum allowable density ranges from 8 to 30 dwellings per acre, with the specific allowable density for each parcel shown on the zoning map by a numerical suffix to the R-3 map symbol see Section 20-22.040. Densities of more than 30 dwellings per acre may be allowed within the Mixed Use land use designation of the General Plan; The R-3 zoning districts implement and are consistent with the Residential Medium Density and Medium High Density land use classifications of the General Plan.
Permitted uses
Include but are not limited to:
Agriculture-Other
Day care facility
Healthcare-Other
Housing-Group
Housing-Multiple units
Housing-Student
Housing-Other
Infrastructure-Other
Housing-Mobile home park
Property details
Interior
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Type: Floor Furnace
Room Information
# of Rooms: 4
Exterior
Exterior Information
Physical Condition: Fair
Building Style Type: U-Shape
Construction Type: Wood/Steel
Building Construction Quality: Fair
Exterior Wall: Wood Siding
Property Information
Living Sq. Ft: 816
Ground Floor Sq. Ft: 816
Building Sq. Ft: 816
# of Stories: 1
Parking & Garage Information
# of Parking Spaces: 1
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 252
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,338
Acres: 0.1685
Zoning Code: CITYSR
County Use Description: SINGLE FAM DWELLING
Utility Information
Sewer Type: Public
Water Service Type: Commercial
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 816
Stories: 1.0
Lot Size: 7,338 square feet
Style: Single Family Residential
Year Built: 1928
Year Renovated: 1928
County: Sonoma County
APN: 038131014000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Luther Burbank Elementary School
Public K-6 • Assigned • 1.0mi
5/10
Montgomery High School
Public 9-12 • Assigned • 2.0mi
7/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
3/10 Flood Factor
Estimated 11-17% chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.31% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 92° expected this year, 16 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
79
54
86
55
83
55
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
$486,000 – $589,000
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