Active

$450,000

18446 1st Avenue, Sonoma, CA 95476

--beds

--baths

8,799Square Feet

Residential Lot

Built in ----

8,799 Square Feet Lot

$-- Zestimate^®

$--/sqft

$-- HOA

What's special

Established neighborhoodSeparate alley access

Located in the heart of Sonoma, 18446 1st Avenue offers over 8,000 square feet of opportunity in a desirable Wine Country setting. The spacious lot features separate alley access, allowing for the potential to build both a main residence and an ADU with independent entry. Set in an established neighborhood near local shops and the historic Sonoma Plaza, this property combines size, flexibility, and locationready for your vision to take shape.

154 days

110

2

Facts & features

Property

Features

Fencing: Partial

Lot

Size: 8,799 Square Feet
Features: Other

Details

Parcel number: 056461014000
Zoning: R1 B6 5 DU, SR X
Zoning description: Single-Family
Special conditions: Standard

Utilities & green energy

Sewer: Public Sewer
Water: Public
Utilities for property: Electricity Available, Natural Gas Available, Public, Sewer Available, Water Available

Green energy

Energy generation: None

Community & HOA

Community

Subdivision: Boyes Hot Springs

HOA

Has HOA: No

Location

Region: Sonoma

Financial & listing details

Date on market: 2/28/2026
Electric utility on property: Yes
Road surface type: Paved

Estimated market value

Not available

Estimated sales range

Not available

Price history

Date	Event	Price
2/28/2026	Listed for sale	$450,000
Source: BAREIS #326014492 Report a problem

Public tax history

Tax history is unavailable.

Monthly payment

Estimated monthly payment$1,822

Principal & interest
$1,547
Mortgage insurance
$0
Property taxes
$170
Home insurance
$105
HOA fees
$0
Utilities
Not included

All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.

HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.

Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.

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