1100 Gossage Avenue

Set on 3 acres in West Petaluma, this reimagined estate includes a beautifully renovated main residence and detached ADU, each thoughtfully updated inside and out with a cohesive, elevated design. The main home offers 4 bedrooms, 3 bathrooms, and 2,265 square feet of open, light-filled living space, defined by clean lines, quality finishes, and careful attention to detail. Original solid wood interior doors remain as a subtle nod to the home's original craftsmanship, seamlessly integrated into the modern interior. The open-concept layout is designed for effortless indoor-outdoor living, with natural light throughout and an easy, comfortable flow from room to room. A detached 400-square-foot ADU with a full kitchen and bathroom provides flexible space for guests, extended living, or a pool house. Outdoors, a pool and expansive grounds create a private, versatile setting with room to expand or further enhance the property. Ideally located just minutes from downtown Petaluma, this property offers the rare combination of space, privacy, and convenience in one of Sonoma County's most sought-after settings. Home Website: https://1100gossageave.com/

Days on Market

2 days

Current Status

Active

Original Price

$1,999,000

List Price

$1,999,000

On Market Date

Jun 22, 2026

Property Type

Single Family Residence

Area

Petaluma West

Zip Code

94952

MLS ID

326054104

APN

048-133-010-000

Year Built

1979

Stories in Building

Unavailable

Possession

Close Of Escrow

Data Source

BAREIS

Origin MLS System

Bed

4

Bath

4 (3/1)

Double Sinks, Marble, Tile

Parking

6

Attached, EV Charging, Garage Door Opener, Guest Parking Available, Interior Access, RV Possible, Uncovered Parking Spaces 2+

SQ FT

2,665

SQ FT Source

Owner

Lot SQ FT

130,680.0

Lot Acres

3.0 Acres

Pool Info

Built-In, Pool Cover

Kitchen

Island, Island w/Sink, Quartz Counter

Cooling

Central

Exterior Details

Balcony

Flooring

Luxury Vinyl Plank

Foundation

Slab

Heating

Central

Laundry

Hookups Only, In Garage, Laundry Closet

Upper Level

Bedroom(s), Full Bath(s), Primary Bedroom

Main Level

Dining Room, Family Room, Kitchen

Possession

Close Of Escrow

Basement

None

Architectural Style

Traditional

Fee

$0

MLS and other Information regarding properties for sale as shown in Theo have been obtained from various sources such as sellers, public records, agents and other third parties. This information may relate to the condition of the property, permitted or unpermitted uses, zoning, square footage, lot size/acreage or other matters affecting value or desirability. Unless otherwise indicated in writing, neither brokers, agents nor Theo have verified, or will verify, such information. If any such information is important to buyer in determining whether to buy, the price to pay or intended use of the property, buyer is urged to conduct their own investigation with qualified professionals, satisfy themselves with respect to that information, and to rely solely on the results of that investigation.

School data provided by GreatSchools. School service boundaries are intended to be used as reference only. To verify enrollment eligibility for a property, contact the school directly.