627 Donner Ave, Sonoma, CA 95476 Property Records

Sonoma County property record for 627 Donner Ave, Sonoma, CA 95476

Property Summary

Property Type	Single Family Home
Details	1 bd · 1 ba · 831 sqft · built 1934
Lot Size	0.172 acres (7,500 sqft)
Owner	2 Company Names on File
Tax Bill	$3,173 (2025)
Deeds & Mortgages	Mar 2024 Transfer
Flood Zone	Zone X (moderate risk)
APN	`018-313-007-000`

Property Details

APN / Parcel Number

Primary APN	`018-313-007-000`
Alternative APN	`018-313-007`

Interior

Bedrooms	1 Bed
Full Baths	1 Bath
Total Rooms	1 Room
Stories	1 Story
Building Area	831 sqft Living Area
1st Floor Area	831 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1934
Effective Year Built	Effective 1938
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	7,500 sqft (0.172 acres)
Garage Area	252 sqft

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Street Address	627 DONNER AVE
City	SONOMA
State	CA
Zip	95476-7131
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Block	1
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	1
Census Block	1014
Census Tract	150204

Owner

Source: Sonoma County records · APN 018-313-007-000

Assessment roll updated April 13, 2026 · Last verified April 2026

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

Owner of Record	2 Company Names on File
Mailing Address	3765 MARKET ST, SAN FRANCISCO, CA 94131-1340
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Transfer Date	Nov 04, 2024
Transfer Doc	0000059065
Record Updated	Jun 08, 2026

March 2024: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SONOMA CA
Recording Date	Mar 13, 2024
Property Address	627 DONNER AVE, SONOMA, CA 95476-7131
Document Number	0000010787
Instrument Date	Feb 18, 2024
Instrument	2024010787
Transaction Type	Transfer
Record Updated	Apr 01, 2024

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3765 MARKET ST, SAN FRANCISCO, CA 94131-1340

Tax Assessment & Valuation

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

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

Year	Tax Bill	Assessed Value
2025	$3,173.00 (+12.6%)	$152,132 (+4.04%) Land $76,066 Building $76,066
2023	$2,818.00 (+2.7%) Homeowner's exemption	$146,226 Land $73,113 Building $73,113
2022	$2,744.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of February 15, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record 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

Wildfire

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 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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

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

Based on FCC filings for 579 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF SONOMA serves 10,619 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.