1870 Hearn Ave is a 1,152 square foot house on a 9,921 square foot lot with 2 bedrooms and 1 bathroom. Based on Redfin's Santa Rosa data, we estimate the home's value is $522,339.
Single-familyProperty Type
1943Year Built
9,921 sq ftLot Size
$453Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$522,339
$10K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 11.5% lower than the average sale price ($590K) 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
$536 (+1.2%)
$14,985 + $25,980
$40,965
2024
$529 (−0.8%)
$14,692 + $25,471
$40,163
2023
$533 (+3.6%)
$14,404 + $24,972
$39,376
2022
$515 (+2.0%)
$14,122 + $24,483
$38,605
2021
$505 (+2.7%)
$13,846 + $24,003
$37,849
2020
$491 (+1.3%)
$13,575 + $23,533
$37,108
2019
$485 (+1.0%)
$13,436 + $23,292
$36,728
2018
$480 (+2.4%)
$13,173 + $22,836
$36,009
2017
$469 (+15.3%)
$12,662 + $21,950
$34,612
2015
$407 (−4.2%)
$12,414 + $21,520
$33,934
2014
$425 (+1.5%)
$11,989 + $20,782
$32,771
2013
$419 (+2.0%)
$11,989 + $20,782
$32,771
2012
$411 (+2.3%)
$11,935 + $20,689
$32,624
2011
$402 (+2.6%)
$11,701 + $20,284
$31,985
2010
$392
$11,472 + $19,887
$31,359
2009
$392 (+4.1%)
$11,387 + $19,739
$31,126
2007
$376
$11,192 + $19,399
$30,591
Tax history for 1870 Hearn Ave
Year
Property tax
Land + Additions
Assessment*
2025
$536 (+1.2%)
$14,985 + $25,980
$40,965
2024
$529 (−0.8%)
$14,692 + $25,471
$40,163
2023
$533 (+3.6%)
$14,404 + $24,972
$39,376
2022
$515 (+2.0%)
$14,122 + $24,483
$38,605
2021
$505 (+2.7%)
$13,846 + $24,003
$37,849
2020
$491 (+1.3%)
$13,575 + $23,533
$37,108
2019
$485 (+1.0%)
$13,436 + $23,292
$36,728
2018
$480 (+2.4%)
$13,173 + $22,836
$36,009
2017
$469 (+15.3%)
$12,662 + $21,950
$34,612
2015
$407 (−4.2%)
$12,414 + $21,520
$33,934
2014
$425 (+1.5%)
$11,989 + $20,782
$32,771
2013
$419 (+2.0%)
$11,989 + $20,782
$32,771
2012
$411 (+2.3%)
$11,935 + $20,689
$32,624
2011
$402 (+2.6%)
$11,701 + $20,284
$31,985
2010
$392
$11,472 + $19,887
$31,359
2009
$392 (+4.1%)
$11,387 + $19,739
$31,126
2007
$376
$11,192 + $19,399
$30,591
*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
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
Apr 17, 2025 • Final
Residential mechanical
Replace the existing wall furnace.
HVAC
Jun 11, 2016 • Final
Building permit no plan check
Replace a wall heater and flue.
Gas
HVAC
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
Room Information
# of Rooms: 4
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Average
Property Information
Subdivision Name: CABEZA DE SANTA ROSA RHO
Living Sq. Ft: 1,152
Building Sq. Ft: 1,152
# of Stories: 1
Parking & Garage Information
Parking Type: Detached Garage
Garage/Parking Sq. Ft: 192
Garage / Carport Type: Detached
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,921
Acres: 0.2278
County Use Description: RURAL RESID-1 RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 1,152
Stories: 1.0
Lot Size: 9,921 square feet
Style: Single Family Residential
Year Built: 1943
Year Renovated: 1948
County: Sonoma County
APN: 134301002000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Meadow View Elementary School
Public K-6 • Assigned • 0.5mi
3/10
Hilliard Comstock Middle School
Public 7-8 • Assigned • 3.1mi
1/10
Elsie Allen High School
Public 9-12 • Assigned • 0.6mi
2/10
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 93° 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 • 95407
Average low and high temperatures (°F)
62
39
63
43
70
45
67
46
74
50
77
52
78
53
83
54
80
56
78
50
65
45
58
43
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
$497,000 – $601,000
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