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545 Armstrong Dr, Sonoma, CA 95476 Property Records

Sonoma County property record for 545 Armstrong Dr, Sonoma, CA 95476

Property Summary

Property TypeSingle Family Home
Details3 bd · 3.5 ba · 4,114 sqft · built 1997
Lot Size0.518 acres (22,544 sqft)
OwnerTrust Name on File
Last Sale$948,500 (Feb 1997)
Tax Bill$19,063 (2025)
Deeds & MortgagesJul 2020 Transfer
Jul 2020 Transfer
Flood ZoneZone X (minimal risk)
APN127-700-052-000

Property Details

APN / Parcel Number

Primary APN127-700-052-000
Alternative APN
  • 127-700-052

Interior

Bedrooms3 Beds
Full Baths3.5 Baths
Half Baths1 Half Bath
Total Rooms3 Rooms
Stories2 Stories
Building Area4,114 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1997
Effective Year BuiltEffective 1997
Construction TypeWood
Lot Area22,544 sqft (0.518 acres)
Garage TypeAttached
Garage Area1,228 sqft
Parking Spaces5 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemCentral

Location & Zoning

Old Parcel Number127-700-052
Street Address545 ARMSTRONG DR
CitySONOMA
StateCA
Zip95476-7276
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR1
Legal Description94 FM PT 127-291-010 & 11 ARMSTRONG ESTS LOT 52
Legal SubdivisionARMSTRONG EST
Legal Block3
Legal Lot Number52
JurisdictionSONOMA CA
Township / Civil DivisionSONOMA
Census Block Group3
Census Block3004
Census Tract150204

Owner

545 Armstrong Dr is owner-occupied and held in a trust since August 2002.

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 RecordTrust Name on File
Mailing Address545 ARMSTRONG DR, SONOMA, CA 95476-7276
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Jul 21, 2020Affidavit of Death, Transfer
ATTORNEY ONLY
Jul 21, 2020Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed NamesName on Deed
Last SaleFeb 13, 1997 · Amount on File
Deed SaleFeb 13, 1997 · Amount on File
Prior SaleFeb 13, 1997 · Amount on File
Deed Document Number199712448
Last Transfer DateAug 26, 2002
Transfer Doc0000132329
Record UpdatedOct 29, 2026

July 2020: Affidavit of Death, Transfer

Document TypeAffidavit of Death
JurisdictionSONOMA CA
Recording DateJul 21, 2020
Property Address545 ARMSTRONG DR, SONOMA, CA 95476-7276
Document Number0000059599
Instrument DateJul 15, 2020
Instrument59599
Transaction TypeTransfer
Record UpdatedAug 12, 2020
Title CompanyATTORNEY ONLY

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address545 ARMSTRONG DR SONOMA CA 954767276, SONOMA, CA 95476-7276

July 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSONOMA CA
Recording DateJul 21, 2020
Property Address545 ARMSTRONG DR, SONOMA, CA 95476-7276
Document Number0000059600
Instrument DateJul 15, 2020
Instrument59600
Transaction TypeTransfer
Record UpdatedAug 12, 2020
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Amount AccuracyFull Value
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address545 ARMSTRONG DR SONOMA CA 954767276, SONOMA, CA 95476-7276

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$1,543,995 (+2%) Land $420,194 Building $1,123,801
2025$19,063.00 (+5%) Homeowner's exemption$1,513,721 (+4.04%) Land $411,955 Building $1,101,766
2023$18,156.00 (+1.99%) Homeowner's exemption$1,454,943 Land $395,959 Building $1,058,984
2022$17,801.00

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

Flood

FEMA maps place 545 Armstrong Dr in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.

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 Policies3 in force
Nearby Flood Claims1 (1998)
Claims Outside the SFHA1 of 1
Most Recent ClaimJan 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

Wildfire risk around 545 Armstrong Dr is low, with a 0.02% annual chance of wildfire.

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

Wildfire RiskLow
lower than 80% of the US · lower than 88% of California
Wildfire Likelihood0.02% annual chance
ExposureDirect
burnable vegetation

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 SystemCITY OF SONOMA
serves 10,619 people · EPA ID CA4910012
Water SourceGroundwater
Last State InspectionJul 2024
LeadUnder 1 ppb (2021–2023)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting1
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 170 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Verizon
Fixed Wireless		300 / 20
AT&T
DSL		100 / 20

May also be available: T-Mobile.

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