411 Patten St, Sonoma, CA 95476 Property Records

Sonoma County property record for 411 Patten St, Sonoma, CA 95476

Property Summary

Property Type	Single Family Home
Details	2 bd · 2.5 ba · 2,016 sqft · built 1952
Lot Size	0.207 acres (9,000 sqft)
Owner	Individual Name on File
Last Sale	$2,600,000 (Sep 2023)
Tax Bill	$8,926 (2025)
Deeds & Mortgages	Sep 2023 Sale Apr 2022 Sale & Mortgage + 4 more
Flood Zone	Zone X (moderate risk)
APN	`018-321-021-000`

Property Details

APN / Parcel Number

Primary APN	`018-321-021-000`
Alternative APN	`018-321-021`

Interior

Bedrooms	2 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	2,016 sqft Living Area
Gross Area	2,302 sqft
1st Floor Area	2,016 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1952
Effective Year Built	Effective 2015
Construction Type	Wood
Lot Area	9,000 sqft (0.207 acres)
Garage Type	Attached
Garage Area	286 sqft
Parking Spaces	1 Parking Space
Porch	Porch

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Old Parcel Number	018-321-021
Street Address	411 PATTEN ST
City	SONOMA
State	CA
Zip	95476-6733
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Subdivision	SONOMA
Legal Block	3
Legal Lot Number	277
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	3
Census Block	3007
Census Tract	150204

Owner

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

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

Owner of Record	Individual Name on File
Mailing Address	411 PATTEN ST, SONOMA, CA 95476-6733
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Unmarried Woman

Deeds, Mortgages & Sale History

Date	Document
Sep 5, 2023	Grant Deed, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY
Apr 15, 2022	Grant Deed, Transfer · Conventional Mortgage CITIBANK NA
Aug 13, 2020	Grant Deed, Transfer FIRST AMERICAN TITLE
Apr 26, 2019	Affidavit of Death, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO
Apr 26, 2019	Affidavit of Death, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO
Apr 26, 2019	Grant Deed, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 5, 2023 · Amount on File
Deed Sale	Sep 5, 2023 · Amount on File
Prior Sale	Apr 15, 2022 · Amount on File
Deed Document Number	202341333
Prior Transfer Date	Apr 28, 2016
Prior Transfer Doc	0000040181
Record Updated	Oct 29, 2026

September 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Sep 5, 2023
Property Address	411 PATTEN ST, SONOMA, CA 95476-6733
Document Number	0000041333
Instrument Date	Aug 29, 2023
Instrument	2023041333
Transaction Type	Transfer
Record Updated	Sep 19, 2023
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount on Record
Tax	$2,860.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	411 PATTEN ST, SONOMA, CA 95476-6733

April 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Apr 15, 2022
Property Address	411 PATTEN ST, SONOMA, CA 95476-6733
Document Number	0000027203
Instrument Date	Apr 11, 2022
Instrument	2022027203
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$3,300.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	411 PATTEN ST, SONOMA, CA 95476-6733
Investor	Possibly a Property Investor

Mortgage

Document Number	0000027204
Date	Apr 15, 2022
Instrument	2022027204

Lender

Name	CITIBANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	May 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	3.25%
Type Change Date	May 1, 2032
Change Frequency	6 Months
Min Rate At Change	2.75%
Max Rate At Change	8.25%
Index	Other
Max Rate	8.25%

August 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Aug 13, 2020
Property Address	411 PATTEN ST, SONOMA, CA 95476-6733
Document Number	0000068617
Instrument Date	Aug 5, 2020
Instrument	68617
Transaction Type	Transfer
Record Updated	Oct 27, 2020
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount on Record
Tax	$2,650.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	411 PATTEN ST SONOMA CA 954766733, SONOMA, CA 95476-6733

April 2019: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	SONOMA CA
Recording Date	Apr 26, 2019
Property Address	411 PATTEN ST, SONOMA, CA 95476-6733
Document Number	0000027462
Instrument Date	Apr 24, 2019
Instrument	27462
Transaction Type	Transfer
Record Updated	May 13, 2019
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	1939 VINEYARD AVE ST HELENA CA 945741749, ST HELENA, CA 94574-1749

April 2019: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	SONOMA CA
Recording Date	Apr 26, 2019
Property Address	411 PATTEN ST, SONOMA, CA 95476-6733
Document Number	0000027461
Instrument Date	Apr 24, 2019
Instrument	27461
Transaction Type	Transfer
Record Updated	May 13, 2019
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	1939 VINEYARD AVE ST HELENA CA 945741749, ST HELENA, CA 94574-1749

April 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Apr 26, 2019
Property Address	411 PATTEN ST, SONOMA, CA 95476-6733
Document Number	0000027463
Instrument Date	Apr 17, 2019
Instrument	27463
Transaction Type	Transfer
Record Updated	May 13, 2019
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount on Record
Tax	$1,243.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	630 AUSTIN AVE SONOMA CA 954767118, SONOMA, CA 95476-7118

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Sonoma County
Municipality	Sonoma City
Unified School District	Sonoma Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$693,642 (+2%) Land $226,097 Building $467,545
2025	$8,926.00 (-71.52%) Homeowner's exemption	$680,042 (-77.78%) Land $221,664 Building $458,378
2023	$31,343.00 (+7.73%) Homeowner's exemption	$3,060,000 Land $1,020,000 Building $2,040,000
2022	$29,094.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

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

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	3 in force
Nearby Flood Claims	1 (1998)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jan 1998 · rainfall accumulation

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

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

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond ember reach

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	CITY OF SONOMA serves 10,619 people · EPA ID CA4910012
Water Source	Groundwater
Last State Inspection	Jul 2024
Lead	Under 1 ppb (2021–2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 540 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20

May also be available: T-Mobile.

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