770 Donner Ave, Sonoma, CA 95476 Property Records

Sonoma County property record for 770 Donner Ave, Sonoma, CA 95476 · Last verified May 2026

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,786 sqft · built 1952
Lot Size	0.215 acres (9,375 sqft)
Owner	2 Individual Names on File
Last Sale	$1,620,000 (Jan 2020)
Tax Bill	$21,282 (2025)
Deeds & Mortgages	Jan 2020 Sale & Mortgage
Flood Zone	Zone X (moderate risk)
APN	`018-361-021-000`

Property Details

APN / Parcel Number

Primary APN	`018-361-021-000`
Alternative APN	`018-361-021`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,786 sqft Living Area
Gross Area	2,237 sqft
1st Floor Area	1,786 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1952
Effective Year Built	Effective 1995
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	9,375 sqft (0.215 acres)
Garage Type	Attached
Garage Area	451 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Old Parcel Number	018-361-021
Street Address	770 DONNER AVE
City	SONOMA
State	CA
Zip	95476-7134
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 20 GREENDALE
Legal Subdivision	GREENDALE
Legal Block	1
Legal Lot Number	20
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	1
Census Block	1017
Census Tract	150204

Owner

Source: Sonoma County records · APN 018-361-021-000

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

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

Owner of Record	2 Individual Names on File
Mailing Address	770 DONNER AVE, SONOMA, CA 95476-7134
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jan 22, 2020 · Amount on Record
Deed Sale	Jan 22, 2020 · Amount on Record
Prior Sale	May 29, 2009 · Amount on Record
Deed Document Number	20205069
Prior Transfer Date	Oct 17, 2011
Prior Transfer Doc	0000090300
Record Updated	Jun 08, 2026

January 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Jan 22, 2020
Property Address	770 DONNER AVE, SONOMA, CA 95476-7134
Document Number	0000005069
Instrument Date	Jan 16, 2020
Instrument	5069
Transaction Type	Transfer
Record Updated	Feb 10, 2020
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$1,782.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	770 DONNER AVE SONOMA CA 954767134, SONOMA, CA 95476-7134

Mortgage

Document Number	5070
Date	Jan 22, 2020
Instrument	5070

Lender

Name	GUARANTEED RATE
Address	3940 N RAVENSWOOD AVE, CHICAGO, IL 60613-2420

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Jan 21, 2050

Tax Assessment & Valuation

Source: Sonoma County records · Assessment roll updated April 13, 2026 · Last verified May 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	$21,282.00 (+4.62%) Homeowner's exemption	$1,771,701 (+4.04%) Land $1,038,961 Building $732,740
2023	$20,343.00 (+0.94%) Homeowner's exemption	$1,702,906 Land $998,618 Building $704,288
2022	$20,153.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Sonoma County (06097C), updated February 15, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060971502041, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Moderate
500-Year Floodplain	Yes
Flood Insurance Cost	Premium on Record median of 15 individual NFIP policies nearby
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 Storm	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	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
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, availability as of December 31, 2025 · Published October 2026 · based on 540 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Xfinity	Cable	2,000 / 250
Verizon	Fixed Wireless	300 / 20
AT&T	DSL	100 / 20

May also be available at this address: T-Mobile USA, AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.