578 Broadway, Sonoma, CA 95476 Property Records

Sonoma County property record for 578 Broadway, Sonoma, CA 95476

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 2,002 sqft · built 1889
Lot Size	0.251 acres (10,935 sqft)
Owner	Company Name on File
Last Sale	$375,000 (Dec 1991)
Tax Bill	$11,159 (2025)
Deeds & Mortgages	Nov 2022 Sale
Flood Zone	Zone X (moderate risk)
APN	`018-212-019-000`

Property Details

APN / Parcel Number

Primary APN	`018-212-019-000`
Alternative APN	`018-212-019`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	3 Rooms
Stories	2 Stories
Building Area	2,002 sqft Living Area
1st Floor Area	1,274 sqft

Exterior

Year Built	Built 1889
Effective Year Built	Effective 1960
Construction Type	Wood
Lot Area	10,935 sqft (0.251 acres)
Garage Type	Detached
Garage Area	380 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Old Parcel Number	018-212-019
Street Address	578 BROADWAY
City	SONOMA
State	CA
Zip	95476-6602
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	CCH
Legal Block	1
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	1
Census Block	1002
Census Tract	150204

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 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.

Owner

578 Broadway is owned by a company that acquired it in February 2014.

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

Owner of Record	Company Name on File
Mailing Address	35 SAN FERNANDO WAY, SAN FRANCISCO, CA 94127-1503
Owner Type	Company
Vesting	Limited Liability Company

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	Name on Deed
Last Sale	Dec 6, 1991 · Amount on File
Deed Sale	Dec 6, 1991 · Amount on File
Deed Document Number	1991122701
Last Transfer Date	Feb 8, 2014
Transfer Doc	0000013351
Record Updated	Oct 29, 2026

November 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Nov 16, 2022
Property Address	578 BROADWAY, SONOMA, CA 95476-6602
Document Number	0000074190
Instrument Date	Oct 20, 2022
Instrument	2022074190
Transaction Type	Transfer
Record Updated	Dec 2, 2022

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	35 SAN FERNANDO WAY, SAN FRANCISCO, CA 94127-1503

Tax Assessment & Valuation

The 2025 property tax bill for 578 Broadway was $11,159.

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		$677,396 (+2%) Land $343,213 Building $334,183
2025	$11,159.00	$664,115 Land $336,484 Building $327,631
2023	$10,513.00 (+2.48%)	$638,328 Land $323,419 Building $314,909
2022	$10,259.00

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

Flood

FEMA maps place 578 Broadway 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 578 Broadway 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	Indirect within ember reach
Adjoins Burnable Land	Yes

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