20321 River Blvd, Monte Rio, CA 95462 Property Records

Sonoma County property record for 20321 River Blvd, Monte Rio, CA 95462

Property Summary

Property Type	Single Family Home
Details	1 bd · 1 ba · 594 sqft · built 1945
Lot Size	0.092 acres (4,000 sqft)
Owner	2 Individual Names on File
Last Sale	$450,000 (Mar 2021)
Tax Bill	$6,050 (2025)
Deeds & Mortgages	Mar 2021 Sale & Mortgage Jun 2019 Sale & Mortgage
Flood Zone	Zone AE (high risk)
APN	`095-233-004-000`

Property Details

APN / Parcel Number

Primary APN	`095-233-004-000`
Alternative APN	`095-233-004`

Interior

Bedrooms	1 Bed
Full Baths	1 Bath
Total Rooms	2 Rooms
Stories	1 Story
Building Area	594 sqft Living Area
1st Floor Area	594 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1945
Effective Year Built	Effective 2000
Architectural Style	Custom Design
Construction Type	Concrete
Lot Area	4,000 sqft (0.092 acres)

Utilities, Heating & Cooling

Heating System	Baseboard
Heating Fuel	Electric

Location & Zoning

Old Parcel Number	095-233-004
Street Address	20321 RIVER BLVD
City	MONTE RIO
State	CA
Zip	95462-9793
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RR1
Legal Subdivision	EAST MONTE RIO ADDITION #1
Legal Block	3
Legal Lot Number	4
Jurisdiction	SONOMA CA
Township / Civil Division	RUSSIAN RIVER-SONOMA COAST
Census Block Group	3
Census Block	3003
Census Tract	153708

Owner

20321 River Blvd is owned by two individuals who bought it in March 2021.

Source: Sonoma County records, as of September 1, 2026

Owner of Record	2 Individual Names on File
Mailing Address	1610 25TH AVE, SAN FRANCISCO, CA 94122-3303
Owner Type	Individual
Vesting	Community Property

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Mar 22, 2021	Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA
Jun 13, 2019	Grant Deed, Transfer · Conventional Mortgage AMERICAN PACIFIC MORTGAGE CORP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 22, 2021 · Amount on File
Deed Sale	Mar 22, 2021 · Amount on File
Prior Sale	Jun 13, 2019 · Amount on File
Deed Document Number	202135888
Prior Transfer Date	Jun 3, 2005
Prior Transfer Doc	0000081865
Record Updated	Oct 29, 2026

March 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Mar 22, 2021
Property Address	20321 RIVER BLVD, MONTE RIO, CA 95462-9793
Document Number	0000035888
Map Reference	MB 21 PG 12
Instrument Date	Mar 17, 2021
Instrument	2021035888
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$495.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	1610 25TH AVE, SAN FRANCISCO, CA 94122-3303

Mortgage

Document Number	0000035889
Date	Mar 22, 2021
Instrument	2021035889

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Apr 1, 2051

June 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Jun 13, 2019
Property Address	20321 RIVER BLVD, MONTE RIO, CA 95462-9793
Document Number	0000039657
Map Reference	MB 21 PG 12
Instrument Date	Jun 10, 2019
Instrument	2019039657
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	FIRST AMERICAN TITLE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	12858 LANTAHA AVENUE, SARATOGA, CA 95070-3642

Mortgage

Document Number	0000039658
Date	Jun 13, 2019
Instrument	2019039658

Lender

Name	AMERICAN PACIFIC MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2049

Tax Assessment & Valuation

The 2025 property tax bill for 20321 River Blvd was $6,050.

Source: Sonoma County assessment roll, as of September 1, 2026

Property Jurisdictions

Type	Name
State	California
County	Sonoma County
Secondary School District	West Sonoma County Union High School District (09 - 12)
Elementary School District	Monte Rio Union Elementary School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$496,834 (+2%) Land $165,611 Building $331,223
2025	$6,050.00	$487,093 Land $162,364 Building $324,729
2023	$5,809.00 (+2.04%)	$468,180 Land $156,060 Building $312,120
2022	$5,693.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 20321 River Blvd in Zone AE, a high-risk flood area within the regulatory floodway; flood insurance is required for federally backed loans.

Source: FEMA National Flood Hazard Layer, effective February 15, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone AE high risk
100-Year Floodplain	Yes 1% annual chance
Floodway	Yes
Base Flood Elevation	Varies along the reach; see FIRM
Flood Insurance Requirement	Required federally backed loans
Flood Insurance Cost	Premium on File median of 64 policies
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	64 in force
Nearby Flood Claims	47 (1995–2025)
Most Recent Claim	Feb 2025 · river or lake flooding
Claims by Event	Severe Winter Storms, Flooding, Landslides, And Mudslides, Feb 2019 · 24 claims Severe Winter Storms, Flooding, And Mudslides, Jan 2017 · 3 claims Severe Storms, Flooding, Mudslides, And Landslides, Dec 2005 · 5 claims

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 20321 River Blvd is moderate, ranking above 47% of the US, with a 0.08% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Moderate above 47% of the US · lower than 72% of California
Wildfire Likelihood	0.08% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	SWEETWATER SPRINGS CWD - MONTE RIO serves 3,531 people · EPA ID CA4910028
Water Source	Groundwater
Last State Inspection	Oct 2021
Lead	Under 1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 128 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	1,200 / 35

Cell Coverage

5G and 4G LTE (outdoors only)

Nearby Properties on River Blvd

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