232 Patten St, Sonoma, CA 95476 Property Records

Sonoma County property record for 232 Patten St, Sonoma, CA 95476

Property Summary

Property Type	Duplex
Details	2 bd · 1.5 ba · 1,507 sqft · built 1910
Lot Size	0.344 acres (15,000 sqft)
Owner	Individual Name on File
Tax Bill	$5,291 (2025)
Deeds & Mortgages	Jul 2022 Transfer
Flood Zone	Zone X (moderate risk)
APN	`018-262-006-000`

Property Details

APN / Parcel Number

Primary APN	`018-262-006-000`
Alternative APN	`018-262-006`

Interior

Bedrooms	2 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	2 Rooms
Units	2 Units
Stories	1 Story
Building Area	1,507 sqft Living Area
1st Floor Area	1,507 sqft

Exterior

Year Built	Built 1910
Effective Year Built	Effective 1938
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	15,000 sqft (0.344 acres)
Garage Type	Attached
Garage Area	288 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Street Address	232 PATTEN ST
City	SONOMA
State	CA
Zip	95476-6731
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	R1
Legal Subdivision	TOWN OF SONOMA
Legal Block	1
Legal Lot Number	7,8
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	1
Census Block	1000
Census Tract	150204

Owner

Source: Sonoma County records · APN 018-262-006-000

Assessment roll updated April 13, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	228 PATTEN ST, SONOMA, CA 95476-6731
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Transfer Date	Jul 22, 2022
Transfer Doc	0000049779
Record Updated	Sep 20, 2026

July 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SONOMA CA
Recording Date	Jul 22, 2022
Property Address	232 PATTEN ST, SONOMA, CA 95476-6731
Document Number	0000049779
Map Reference	MB 19 PG 3
Instrument Date	Jul 22, 2022
Instrument	2022049779
Transaction Type	Transfer
Record Updated	Aug 05, 2022

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	228 PATTEN ST # 232, 232, SONOMA, CA 95476-6731

Tax Assessment & Valuation

Source: Sonoma County records · Assessment roll updated April 13, 2026 · Last verified August 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

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

Year	Tax Bill	Assessed Value
2025	$5,291.00 (+7.41%)	$216,344 (+4.04%) Land $78,100 Building $138,244
2023	$4,926.00 (+5.05%)	$207,945 Land $75,068 Building $132,877
2022	$4,689.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of February 15, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 15 policies
Nearby Flood Policies	15 in force
Nearby Flood Claims	8 (1978–2025)
Claims Outside the SFHA	6 of 8
Most Recent Claim	Feb 2025 · rainfall accumulation
Claims by Event	Severe Winter Storms, Flooding, Landslides, And Mudslides, Feb 2019 · 2 claims Severe Winter Storm, Mud & Land Slides, & Flooding, Jan 1993 · 2 claims

Wildfire

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 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.

Historic Designation

Source: NPS National Register of Historic Places as of August 1, 2026 · Last verified October 2026

Historic District	Within the Sonoma Plaza listed 1975 · 31 contributing resources · National Historic Landmark (designated 1960) · NRIS 75000489

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

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

Based on FCC filings for 579 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF SONOMA serves 10,619 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.