6640 Sonoma Mountain Rd, Santa Rosa, CA 95404 Property Records

Sonoma County property record for 6640 Sonoma Mountain Rd, Santa Rosa, CA 95404

Property Summary

Property Type	Single Family Home
Details	2 bd · 2.5 ba · 2,918 sqft · built 2006
Lot Size	9.15 acres (398,574 sqft)
Owner	Trust Name on File
Last Sale	$379,000 (Jun 1999)
Tax Bill	$16,326 (2025)
Flood Zone	Zone X (minimal risk)
APN	`055-080-023-000`

Property Details

APN / Parcel Number

Primary APN	`055-080-023-000`
Alternative APN	`055-080-023`

Interior

Bedrooms	2 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	2 Rooms
Stories	2 Stories
Building Area	2,918 sqft Living Area
Gross Area	3,587 sqft
1st Floor Area	1,234 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2006
Effective Year Built	Effective 2007
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	398,574 sqft
Garage Type	Attached
Garage Area	669 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Central

Location & Zoning

Old Parcel Number	055-080-023
Street Address	6640 SONOMA MOUNTAIN RD
City	SANTA ROSA
State	CA
Zip	95404-8890
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TWP 06N RGE 06W SEC 18 26
Legal Block	2
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	2
Census Block	2028
Census Tract	150501

Owner

6640 Sonoma Mountain Rd is held in a trust since June 1999.

Source: Sonoma County records, as of October 6, 2026

Owner of Record	Trust Name on File
Mailing Address	404 MONTINI WAY, SONOMA, CA 95476-5665
Owner Type	Company
Vesting	Trust

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	Jun 15, 1999 · Amount on File
Deed Sale	Jun 15, 1999 · Amount on File
Prior Sale	Jun 16, 1998 · Amount on File
Deed Document Number	199976521
Record Updated	Oct 29, 2026

Tax Assessment & Valuation

The 2025 property tax bill for 6640 Sonoma Mountain Rd was $16,326.

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

Property Jurisdictions

Type	Name
State	California
County	Sonoma County
Unified School District	Sonoma Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,440,821 (+2%) Land $395,392 Building $1,045,429
2025	$16,326.00 Homeowner's exemption	$1,412,571 Land $387,640 Building $1,024,931
2023	$15,724.00 (+1.28%) Homeowner's exemption	$1,357,722 Land $372,589 Building $985,133
2022	$15,525.00

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

Flood

FEMA maps place 6640 Sonoma Mountain Rd in Zone X, an area of minimal flood risk.

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 minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	5 in force

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 6640 Sonoma Mountain Rd is high, ranking above 73% of the US, with a 0.3% annual chance of wildfire.

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

Wildfire Risk	High above 73% of the US · above 49% of California
Wildfire Likelihood	0.3% annual chance
Exposure	Direct burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Internet Providers

Source: FCC Broadband Data Collection, based on 17 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30