21473 Highland Ter is a 610 square foot house on a 3,300 square foot lot with 1 bedroom and 1 bathroom. Based on Redfin's Monte Rio data, we estimate the home's value is $316,659.
Single-familyProperty Type
1904Year Built
3,300 sq ftLot Size
$519Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$316,659
$0 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 16.4% lower than the average sale price ($379K) of 5 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
$980 (+4.3%)
$9,985 + $19,980
$29,965
2024
$940 (+1.3%)
$9,790 + $19,589
$29,379
2023
$928 (+1.9%)
$9,599 + $19,205
$28,804
2022
$911 (+0.7%)
$9,411 + $18,829
$28,240
2021
$904 (−5.9%)
$9,227 + $18,460
$27,687
2020
$960 (+7.9%)
$9,047 + $18,099
$27,146
2019
$890 (+32.2%)
$8,955 + $17,914
$26,869
2018
$673 (+2.0%)
$8,780 + $17,563
$26,343
2017
$660 (−2.8%)
$8,440 + $16,882
$25,322
2015
$679 (+0.9%)
$8,275 + $16,551
$24,826
2014
$673 (+0.2%)
$7,992 + $15,984
$23,976
2013
$672 (+4.2%)
$7,992 + $15,984
$23,976
2012
$645 (+0.9%)
$7,956 + $15,912
$23,868
2011
$639 (+0.4%)
$7,800 + $15,600
$23,400
2010
$636 (−0.2%)
$7,648 + $15,295
$22,943
2009
$638 (−6.5%)
$7,591 + $15,181
$22,772
2007
$682
$7,461 + $14,920
$22,381
Tax history for 21473 Highland Ter
Year
Property tax
Land + Additions
Assessment*
2025
$980 (+4.3%)
$9,985 + $19,980
$29,965
2024
$940 (+1.3%)
$9,790 + $19,589
$29,379
2023
$928 (+1.9%)
$9,599 + $19,205
$28,804
2022
$911 (+0.7%)
$9,411 + $18,829
$28,240
2021
$904 (−5.9%)
$9,227 + $18,460
$27,687
2020
$960 (+7.9%)
$9,047 + $18,099
$27,146
2019
$890 (+32.2%)
$8,955 + $17,914
$26,869
2018
$673 (+2.0%)
$8,780 + $17,563
$26,343
2017
$660 (−2.8%)
$8,440 + $16,882
$25,322
2015
$679 (+0.9%)
$8,275 + $16,551
$24,826
2014
$673 (+0.2%)
$7,992 + $15,984
$23,976
2013
$672 (+4.2%)
$7,992 + $15,984
$23,976
2012
$645 (+0.9%)
$7,956 + $15,912
$23,868
2011
$639 (+0.4%)
$7,800 + $15,600
$23,400
2010
$636 (−0.2%)
$7,648 + $15,295
$22,943
2009
$638 (−6.5%)
$7,591 + $15,181
$22,772
2007
$682
$7,461 + $14,920
$22,381
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Aug 28, 2025 • Final
Building permit no plan check
Remove existing roof shingles and install new shingles and underlayment. Install TPO roofing with a substrate board and new flashing for the skylight.
Roofing
Jun 11, 2016 • Final
Building permit no plan check
Upgrade the electrical service.
Electrical
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
Basement Information
Basement Sq. Ft: 520
Bathroom Information
# of Full Baths: 1
Room Information
# of Rooms: 2
Exterior
Exterior Information
Building Style Type: U-Shape
Construction Type: Wood/Steel
Building Construction Quality: Poor
Property Information
Subdivision Name: MONTE RIO PARK
Living Sq. Ft: 610
Ground Floor Sq. Ft: 610
Building Sq. Ft: 610
# of Stories: 1
Legal Description: MONTE RIO PARK TIER M LOT 5
Lot Information
# of Buildings: 1
Land Sq. Ft: 3,300
Legal Lot Number: 5
Acres: 0.0758
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 1
Baths: 1.0
Sq. Ft.: 610
Stories: 1.0
Lot Size: 3,300 square feet
Style: Single Family Residential
Year Built: 1904
Year Renovated: 1910
County: Sonoma County
APN: 095143005000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Monte Rio Elementary School
Public K-8 • Assigned • 0.6mi
7/10
Analy High School
Public 9-12 • Assigned • 10.8mi
8/10
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
2/10 Heat Factor
9 days above 86° expected this year, 23 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
17 unhealthy days expected this year, 19 days in 30 years
Provided by First Street
Historical weather
Monte Rio, CA • 95462
Average low and high temperatures (°F)
59
40
60
43
69
44
66
46
74
49
75
51
73
52
82
53
78
53
75
49
62
45
58
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.6 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
10.6 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$301,000 – $365,000
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