623 Spencer Ave is a 2,384 square foot multi-family home on a 5,842 square foot lot with 5 bedrooms and 2 bathrooms. Based on Redfin's Santa Rosa data, we estimate the home's value is $762,033.
Multi-familyProperty Type
1952Year Built
5,842 sq ftLot Size
$320Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$762,033
$10K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.1% higher than the average sale price ($732K) 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
$1,290 (+1.5%)
$34,351 + $72,579
$106,930
2024
$1,270 (+1.5%)
$33,678 + $71,156
$104,834
2023
$1,252 (+6.4%)
$33,018 + $69,761
$102,779
2022
$1,176 (+1.2%)
$32,371 + $68,394
$100,765
2021
$1,162 (+7.5%)
$31,737 + $67,053
$98,790
2020
$1,080 (+0.7%)
$31,115 + $65,739
$96,854
2019
$1,073 (+0.8%)
$30,796 + $65,065
$95,861
2018
$1,064 (+1.9%)
$30,193 + $63,790
$93,983
2017
$1,044 (+5.0%)
$29,021 + $61,314
$90,335
2015
$994 (+6.4%)
$28,452 + $60,112
$88,564
2014
$934
$27,477 + $58,051
$85,528
2013
$933 (+1.9%)
$27,477 + $58,051
$85,528
2012
$916 (+2.2%)
$27,353 + $57,789
$85,142
2011
$896 (+1.6%)
$26,817 + $56,656
$83,473
2010
$882 (−0.6%)
$26,292 + $55,546
$81,838
2009
$887 (+2.2%)
$26,096 + $55,131
$81,227
2007
$868
$25,646 + $54,179
$79,825
Tax history for 623 Spencer Ave
Year
Property tax
Land + Additions
Assessment*
2025
$1,290 (+1.5%)
$34,351 + $72,579
$106,930
2024
$1,270 (+1.5%)
$33,678 + $71,156
$104,834
2023
$1,252 (+6.4%)
$33,018 + $69,761
$102,779
2022
$1,176 (+1.2%)
$32,371 + $68,394
$100,765
2021
$1,162 (+7.5%)
$31,737 + $67,053
$98,790
2020
$1,080 (+0.7%)
$31,115 + $65,739
$96,854
2019
$1,073 (+0.8%)
$30,796 + $65,065
$95,861
2018
$1,064 (+1.9%)
$30,193 + $63,790
$93,983
2017
$1,044 (+5.0%)
$29,021 + $61,314
$90,335
2015
$994 (+6.4%)
$28,452 + $60,112
$88,564
2014
$934
$27,477 + $58,051
$85,528
2013
$933 (+1.9%)
$27,477 + $58,051
$85,528
2012
$916 (+2.2%)
$27,353 + $57,789
$85,142
2011
$896 (+1.6%)
$26,817 + $56,656
$83,473
2010
$882 (−0.6%)
$26,292 + $55,546
$81,838
2009
$887 (+2.2%)
$26,096 + $55,131
$81,227
2007
$868
$25,646 + $54,179
$79,825
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Mar 25, 2026 • Active
Residential addition-alteration
Bathroom
Remodel
Dec 8, 2025 • Final
Residential plumbing
Perform a whole house waste repipe using ABS piping. Work includes plumbing for lavatories and a shower.
Plumbing
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: 2
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 8
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: MERRIAM ADD
Living Sq. Ft: 2,384
Ground Floor Sq. Ft: 1,184
Building Sq. Ft: 2,384
# of Stories: 2
Legal Description: REMAP 012-132-017- 09/13/97 LT5 BLK D MERRIAM ADDN
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,842
Legal Lot Number: 5
Legal Block Number: D
Acres: 0.1341
Depth Footage: 127
Front Footage: 46
Zoning Code: CITYSR
County Use Description: 3 UNITS-2+ STRUCT
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 5
Baths: 2.0
Sq. Ft.: 2,384
Stories: 2.0
Lot Size: 5,842 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1952
Year Renovated: 1952
County: Sonoma County
APN: 180600012000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Hidden Valley Elementary Satellite School
Public K-6 • Assigned • 1.7mi
8/10
Santa Rosa Middle School
Public 7-8 • Assigned • 0.6mi
2/10
Santa Rosa High School
Public 9-12 • Assigned • 0.4mi
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
1/10 Fire Factor
Unlikely to be 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
10/10 Air Factor
21 unhealthy days expected this year, 21 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
$724,000 – $877,000
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