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366 Patten St, Sonoma, CA 95476 Property Records

Sonoma County property record for 366 Patten St, Sonoma, CA 95476 · Last verified August 2026

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,707 sqft · built 1939
Lot Size0.135 acres (5,900 sqft)
Owner2 Company Names on File
Last Sale$1,365,000 (Aug 2021)
Tax Bill$18,064 (2025)
Deeds & MortgagesNov 2023 Transfer
Aug 2021 Sale & Mortgage
Flood ZoneZone X (moderate risk)
APN018-271-026-000

Property Details

APN / Parcel Number

Primary APN018-271-026-000
Alternative APN
  • 018-271-026

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms4 Rooms
Stories2 Stories
Building Area1,707 sqft Living Area
1st Floor Area1,292 sqft

Exterior

Year BuiltBuilt 1939
Effective Year BuiltEffective 1986
Construction TypeWood
Lot Area5,900 sqft (0.135 acres)
Garage Area315 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Cooling SystemHVAC

Location & Zoning

Old Parcel Number018-271-026
Street Address366 PATTEN ST
CitySONOMA
StateCA
Zip95476-6732
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionMAP B3 180
Legal SubdivisionPICETTI TERRACE
Legal Block1
Legal Lot Number9
JurisdictionSONOMA CA
Township / Civil DivisionSONOMA
Census Block Group1
Census Block1000
Census Tract150204

Owner

Source: Sonoma County records · APN 018-271-026-000

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 Record2 Company Names on File
Mailing Address366 PATTEN ST, SONOMA, CA 95476-6732
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Family Trust

Deeds, Mortgages & Sale History

DateDocument
Nov 09, 2023Intrafamily Transfer, Transfer
Aug 10, 2021Grant Deed, Transfer · Conventional Mortgage
UMPQUA BANK

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleAug 10, 2021 · Amount on Record
Deed SaleAug 10, 2021 · Amount on Record
Deed Document Number202190899
Last Transfer DateMar 06, 2025
Transfer Doc0000010568
Record UpdatedSep 20, 2026

November 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionSONOMA CA
Recording DateNov 09, 2023
Property Address366 PATTEN ST, SONOMA, CA 95476-6732
Document Number0000055726
Map ReferenceMB 32 PG 20
Instrument DateNov 06, 2023
Instrument2023055726
Transaction TypeTransfer
Record UpdatedDec 04, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipFamily Trust
Address366 PATTEN ST, SONOMA, CA 95476-6732

August 2021: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSONOMA CA
Recording DateAug 10, 2021
Property Address366 PATTEN ST, SONOMA, CA 95476-6732
Document Number0000090899
Map ReferenceMB 32 PG 20
Instrument DateAug 04, 2021
Instrument2021090899
Transaction TypeTransfer
Record UpdatedAug 17, 2023
Title CompanyFIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$1,501.50
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address474 ROSALIE DR, SONOMA, CA 95476-5661

Mortgage

Document Number0000090900
DateAug 10, 2021
Instrument2021090900
Lender
NameUMPQUA BANK
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueSep 01, 2051

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountySonoma County
MunicipalitySonoma City
Unified School DistrictSonoma 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.

YearTax BillAssessed Value
2025$18,064.00 (+3.89%) Homeowner's exemption$1,448,548 (+4.04%) Land $742,845 Building $705,703
2023$17,387.00 (+1.44%) Homeowner's exemption$1,392,300 Land $714,000 Building $678,300
2022$17,141.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Sonoma County (06097C), updated February 15, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060971502041, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Special Flood Hazard AreaNo
Flood HazardModerate
500-Year FloodplainYes
Flood Insurance CostPremium on Record
median of 15 individual NFIP policies nearby
Nearby Flood Policies15 in force
Nearby Flood Claims8 (1978–2025)
Claims Outside the SFHA6 of 8
Most Recent ClaimFeb 2025, rainfall accumulation
Claims By Storm
  • Severe Winter Storms, Flooding, Landslides, And Mudslides, Feb 2019 · 2 claims
  • Severe Winter Storm, Mud & Land Slides, & Flooding, Jan 1993 · 2 claims

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
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 · August 1, 2026 release · Last verified October 2026

Historic DistrictWithin 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, availability as of December 31, 2025 · Published October 2026 · based on 579 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable2,000 / 250
VerizonFixed Wireless300 / 20
T-Mobile USAFixed Wireless100 / 20
AT&TDSL100 / 20
StarlinkSatellite (low-earth orbit)280 / 30

May also be available at this address: AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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