21303 Monte Cristo Ave is a 1,436 square foot house on a 0.34 acre lot with 1 bedroom and 2.5 bathrooms. - it last sold on October 09, 1974 for $18,000. Based on Redfin's Monte Rio data, we estimate the home's value is $748,433.
Single-familyProperty Type
2018Year Built
0.34 acresLot Size
$521Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$748,433
$730K since sold in October 1974$49K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6.9% lower than the average sale price ($804K) 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
Dec 30, 2022 • Final
Deferred submittal - fire
Install a fire sprinkler system in a residential building according to safety standards.
Fire sprinkler
Jul 31, 2020 • Final
Building permit with plan check
Replace a single-family home and garage.
New construction
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
# of 1/2 Baths: 1
Room Information
# of Rooms: 4
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood/Steel
Building Construction Quality: Good
Property Information
Subdivision Name: MONTE CRISTO SUB #2
Living Sq. Ft: 1,436
Building Sq. Ft: 2,235
# of Stories: 3
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 527
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 14,800
Legal Lot Number: 20,21
Acres: 0.3398
Zoning Code: RR1
County Use Description: SINGLE FAM DWELLING
Location Information
Parcel Location Influence: River
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 1
Baths: 2.5
Sq. Ft.: 1,436
Stories: 3.0
Lot Size: 0.34 acres
Style: Single Family Residential
Year Built: 2018
Year Renovated: 2020
County: Sonoma County
APN: 094061012000
Home facts updated by county records on Aug 13, 2026
Around this home
Schools
Monte Rio Elementary School
Public K-8 • Assigned • 0.3mi
7/10
Analy High School
Public 9-12 • Assigned • 11.4mi
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
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
2/10 Heat Factor
8 days above 84° 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
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43
69
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66
46
74
49
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77
53
82
53
77
55
75
49
62
45
58
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
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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
$712,000 – $861,000
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