140 Northside Ave, Sonoma, CA 95476 Property Records

Sonoma County property record for 140 Northside Ave, Sonoma, CA 95476

Property Summary

Property Type	Triplex
Details	2 bd · 1 ba · 441 sqft · built 1921
Lot Size	0.087 acres (3,800 sqft)
Owner	Company Name on File
Last Sale	$2,900,000 (Sep 2020)
Tax Bill	$10,684 (2025)
Deeds & Mortgages	Oct 2021 Mortgage Sep 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`056-371-003-000`

Property Details

APN / Parcel Number

Primary APN	`056-371-003-000`
Alternative APN	`056-371-003`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	2 Rooms
Units	3 Units
Stories	1 Story
Building Area	441 sqft Living Area
1st Floor Area	441 sqft

Exterior

Year Built	Built 1921
Effective Year Built	Effective 1921
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	3,800 sqft (0.087 acres)

Utilities, Heating & Cooling

Cooling System	None

Location & Zoning

Old Parcel Number	056-371-003
Street Address	140 NORTHSIDE AVE
City	SONOMA
State	CA
Zip	95476-8800
Property Category	Residential
Property Type	Residential > Multi-Unit > Triplex
Legal Description	LOTS 156 & 157 BOYES SPRINGS HOTEL GROUNDS
Legal Subdivision	BOYES SPRINGS
Legal Block	4
Legal Lot Number	156
Jurisdiction	SONOMA CA
Township / Civil Division	SONOMA
Census Block Group	4
Census Block	4003
Census Tract	150305

Owner

140 Northside Ave, a triplex, is owned by a company that bought it in September 2020.

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

Owner of Record	Company Name on File
Mailing Address	936 7TH ST, B, NOVATO, CA 94945-3010
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

Date	Document
Oct 29, 2021	Grant Deed, Transfer · Commercial Mortgage CONVENTUS LLC
Sep 4, 2020	Grant Deed, Transfer CONVENTUS LLC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 4, 2020 · Amount on File
Deed Sale	Sep 4, 2020 · Amount on File
Prior Sale	Jun 13, 1997 · Amount on File
Deed Document Number	202078754
Prior Transfer Date	Apr 19, 2003
Prior Transfer Doc	0000096095
Record Updated	Oct 29, 2026

October 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Oct 29, 2021
Property Address	140 NORTHSIDE AVE, SONOMA, CA 95476-8800
Document Number	0000118980
Map Reference	MB 33 PG 19&20
Instrument Date	Oct 28, 2021
Instrument	2021118980
Transaction Type	Transfer
Record Updated	Jul 25, 2022
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

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

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	727 WEBSTER ST, SAN FRANCISCO, CA 94117-1715

Mortgage

Document Number	0000118981
Date	Oct 29, 2021
Instrument	2021118981

Lender

Name	CONVENTUS LLC
Type	Non-Lending Institution

Agreement

Type	Commercial Mortgage
Amount	Amount on Record

September 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SONOMA CA
Recording Date	Sep 4, 2020
Property Address	140 NORTHSIDE AVE, SONOMA, CA 95476-8800
Document Number	0000078754
Instrument Date	Aug 27, 2020
Instrument	78754
Transaction Type	Transfer
Record Updated	Sep 29, 2020
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$3,190.00
Amount Accuracy	Full Value
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	727 WEBSTER ST SAN FRANCISCO CA 941171715, SAN FRANCISCO, CA 94117-1715

Mortgage

Document Number	78755
Date	Sep 4, 2020
Instrument	78755

Lender

Name	CONVENTUS LLC
Address	111 POTRERO AVE, SAN FRANCISCO, CA 94103-4812

Agreement

Amount	Amount on Record

Mortgage

Document Number	78756,
Date	Sep 4, 2020
Instrument	78756

Lender

Name	CONVENTUS LLC
Address	SAN FRANCISCO, CA 94103

Agreement

Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 140 Northside Ave was $10,684.

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		$541,214 (+2%) Land $211,073 Building $330,141
2025	$10,684.00	$530,603 Land $206,935 Building $323,668
2023	$9,962.00 (+3.31%)	$510,000 Land $198,900 Building $311,100
2022	$9,643.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 140 Northside Ave 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	1 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 140 Northside 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	VALLEY OF THE MOON WATER DISTRICT serves 23,140 people · EPA ID CA4910013
Water Source	Groundwater
Last State Inspection	Sep 2022
Lead	Under 1 ppb (2024–2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 711 locations within half a mile, as of December 31, 2025

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

May also be available: Verizon.

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