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55 Mountain Ave, Sonoma, CA 95476 Property Records

Sonoma County property record for 55 Mountain Ave, Sonoma, CA 95476

Property Summary

Property TypeSingle Family Home
Details1 bd · 1 ba · 853 sqft · built 1918
Lot Size0.15 acres (6,532 sqft)
Owner2 Individual Names on Record
Last Sale$265,000 (Jun 2009)
Tax Bill$5,383 (2025)
Deeds & MortgagesAug 2017 Mortgage
Flood ZoneZone X (minimal risk)
APN056-252-027-000

Property Details

APN / Parcel Number

Primary APN056-252-027-000
Alternative APN
  • 056-252-027

Interior

Bedrooms1 Bed
Full Baths1 Bath
Total Rooms1 Room
Stories1 Story
Building Area853 sqft Living Area
1st Floor Area853 sqft
Basement Area509 sqft

Exterior

Year BuiltBuilt 1918
Effective Year BuiltEffective 1980
Architectural StyleL-Shape
Construction TypeWood
Lot Area6,532 sqft (0.15 acres)

Utilities, Heating & Cooling

Cooling SystemHVAC

Location & Zoning

Old Parcel Number056-252-027
Street Address55 MOUNTAIN AVE
CitySONOMA
StateCA
Zip95476-3436
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR13UA
Legal DescriptionLOT 65 & PTN LOT 58 BLK 3 AGUA CALIENTE PK SUB#1
Legal SubdivisionAGUA CALIENTE PK SUB
Legal Block3
Legal Lot Number65,58
JurisdictionSONOMA CA
Township / Civil DivisionSONOMA
Census Block Group2
Census Block2000
Census Tract150306

Owner

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

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

Owner of Record2 Individual Names on Record
Mailing Address55 MOUNTAIN AVE, SONOMA, CA 95476-3436
OccupancyOwner Occupied
Owner TypeIndividual
VestingCommunity Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleJun 12, 2009 · Amount on Record
Deed SaleJun 12, 2009 · Amount on Record
Prior SaleJul 15, 2002 · Amount on Record
Deed Document Number200957157
Last Transfer DateAug 21, 2017
Transfer Doc0000067365
Record UpdatedOct 29, 2026

August 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSONOMA CA
Recording DateAug 28, 2017
Property Address55 MOUNTAIN AVE, SONOMA, CA 95476-3436
Document Number0000067365
Instrument DateAug 21, 2017
Instrument67365
Transaction TypeTransfer
Record UpdatedSep 15, 2017
Title CompanyFIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMPANY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property
Address55 MOUNTAIN AVE SONOMA CA 954763436, SONOMA, CA 95476-3436

Mortgage

Document Number67366
DateAug 28, 2017
Instrument67366
Lender
NameETHOS LNDG
AddressPITTSBURGH, PA 15212
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term180 Months
DueAug 27, 2032

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountySonoma County
Unified School DistrictSonoma Valley Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$348,063 (+2%) Land $183,882 Building $164,181
2025$5,383.00 (+5.49%) Homeowner's exemption$341,239 (+4.04%) Land $180,277 Building $160,962
2023$5,103.00 (+2.49%) Homeowner's exemption$327,990 Land $173,278 Building $154,712
2022$4,979.00

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

Flood

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

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 10 (0% premium discount)
Nearby Flood Policies2 in force

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 RiskLow
lower than 65% of the US · lower than 79% of California
Wildfire Likelihood0.04% annual chance
ExposureIndirect
within 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 SystemVALLEY OF THE MOON WATER DISTRICT
serves 23,140 people · EPA ID CA4910013
Water SourceGroundwater
Last State InspectionSep 2022
LeadUnder 1 ppb (2024–2026)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 444 locations within half a mile, as of December 31, 2025

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

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