731 Austin Ave, Sonoma, CA 95476 Property Records

Sonoma County property record for 731 Austin Ave, Sonoma, CA 95476

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,403 sqft · built 1936
Lot Size	0.109 acres (4,750 sqft)
Owner	2 Individual Names on File
Last Sale	$359,000 (Feb 1999)
Tax Bill	$7,706 (2025)
Deeds & Mortgages	Jun 2021 Mortgage
Flood Zone	Zone X (moderate risk)
APN	`018-352-018-000`

Property Details

APN / Parcel Number

Primary APN	`018-352-018-000`
Alternative APN	`018-352-018`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	3 Rooms
Stories	1 Story
Building Area	1,403 sqft Living Area
1st Floor Area	1,403 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1936
Effective Year Built	Effective 1938
Architectural Style	L-Shape
Exterior Material	Wood Siding
Construction Type	Wood
Roof Material	Composition Shingle
Lot Area	4,750 sqft (0.109 acres)
Garage Area	320 sqft

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Old Parcel Number	018-352-018
Street Address	731 AUSTIN AVE
City	SONOMA
State	CA
Zip	95476-7119
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Subdivision	PLAT OF HAROLD SUBDIVISION
Legal Block	1
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	1
Census Block	1010
Census Tract	150204

Owner

731 Austin Ave is owned and occupied by two individuals who bought it in February 1999.

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

Owner of Record	2 Individual Names on File
Mailing Address	731 AUSTIN AVE, SONOMA, CA 95476-7119
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

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

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Feb 19, 1999 · Amount on File
Deed Sale	Feb 19, 1999 · Amount on File
Deed Document Number	199921762
Prior Transfer Date	Feb 5, 1999
Prior Transfer Doc	0000021763
Record Updated	Oct 29, 2026

June 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SONOMA CA
Property Address	731 AUSTIN AVE, SONOMA, CA 95476-7119
Transaction Type	Mortgage
Record Updated	Jul 21, 2021
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	731 AUSTIN AVE, SONOMA, CA 95476-7119

Mortgage

Document Number	0000076302
Date	Jun 30, 2021
Instrument	2021076302

Lender

Name	THE GOLDEN 1 CU
Type	Credit Union
Address	SACRAMENTO, CA 95826

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2051

Tax Assessment & Valuation

The 2025 property tax bill for 731 Austin Ave was $7,706 with a homeowner's exemption.

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		$574,061 (+2%) Land $287,829 Building $286,232
2025	$7,706.00 Homeowner's exemption	$562,806 Land $282,186 Building $280,620
2023	$7,521.00 (+0.76%) Homeowner's exemption	$540,953 Land $271,229 Building $269,724
2022	$7,464.00

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

Flood

FEMA maps place 731 Austin Ave in Zone X, an area of moderate flood risk, within 500 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File 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

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 731 Austin Ave is low, with a 0.01% annual chance of 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 579 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
T-Mobile Fixed Wireless	100 / 20
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20