21517 Highland Ter is a 837 square foot house on a 9,785 square foot lot with 2 bedrooms and 1 bathroom. - it last sold on October 05, 2010 for $155,000. Based on Redfin's Monte Rio data, we estimate the home's value is $496,588.
Single-familyProperty Type
1920Year Built
9,785 sq ftLot Size
$593Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$496,588
$342K since sold in October 2010$39K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 5.5% lower than the average sale price ($525K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Apr 6, 2018 • Final
Building permit no plan check
Kitchen
Plumbing
Remodel
Jun 11, 2016 • Final
Building permit no plan check
Perform reroofing work on a room.
Roofing
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: 418
Bathroom Information
# of Full Baths: 1
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 4
Exterior
Exterior Information
Building Style Type: U-Shape
Construction Type: Wood/Steel
Building Construction Quality: Fair
Property Information
Subdivision Name: MONTE RIO ADD 01
Living Sq. Ft: 837
Ground Floor Sq. Ft: 837
Building Sq. Ft: 837
# of Stories: 1
Legal Description: LOT 15 & 16, TIER J, MONTE RIO PARK ADD NO. 1
Lot Information
# of Buildings: 1
Land Sq. Ft: 9,785
Legal Lot Number: 15
Acres: 0.2246
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 2
Baths: 1.0
Sq. Ft.: 837
Stories: 1.0
Lot Size: 9,785 square feet
Style: Single Family Residential
Year Built: 1920
Year Renovated: 1970
County: Sonoma County
APN: 095114007000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Monte Rio Elementary School
Public K-8 • Assigned • 0.5mi
7/10
Analy High School
Public 9-12 • Assigned • 10.9mi
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
8 days above 86° expected this year, 21 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
$472,000 – $572,000
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