3250 Trinity Road

• Thu Jul 16, 10:30 am - 12:00 pm

This landmark estate represents a rare opportunity to own a founding piece of Glen Ellen, one of Sonoma Valley's most storied communities. Built in 1880 on the original land holdings that gave Glen Ellen its name, this estate traces its roots to Rancho Agua Caliente, a 3,200 acre Mexican land grant dating to 1840 that encompassed present-day Glen Ellen, Fetters Hot Springs, and Agua Caliente. In 1859, Colonel Charles V. Stuart purchased a significant portion of this land and established a 1,000-acre ranch he named Glen Ellen after his wife, Ellen, and the village that grew around the ranch adopted its name from this estate. Stuart later renamed the ranch Glen Oaks in the 1870s, but the town's identity had been written into the land. The 1880 construction places this home at the height of Glen Ellen's transformation into a premier summer retreat for San Franciscan's. The arrival of the railroad made the valley accessible, and a wave of hotels, boarding houses, and private inns opened to serve visitors seeking respite from the city. This property operated as a charming boarding house during this golden era, welcoming guests for extended stays among the vineyards and oak-studded hills. Documented establishments from this period include the Mervyn Hotel (1885), Dr. C.C. O'Donnell's health resort (1891), and the Chauvet Hotel (1906). At over 5,000 square feet across three stories, the residence offers 5 bedrooms, 5.5 bathrooms, and 11 rooms including a formal dining room. A comprehensive renovation in 1990 preserved the home's historic character while modernizing its systems for contemporary living. The property features a pool, detached storage and sits on over 22 acres of Sonoma Valley landscape. The current owners represent the third generation of families to steward this property, and their stories of its past add a layer of provenance that cannot be manufactured. Additional highlights include potential eligibility for historic designation under California's Mills Act (20-70% property tax reduction), Rural Residential-1 zoning, Sonoma Valley School District, and proximity to Glen Ellen village, Jack London State Historic Park and the wineries of Sonoma Valley.

Days on Market

0 days

Current Status

Active

Original Price

$2,350,000

List Price

$2,350,000

On Market Date

Jul 15, 2026

Property Type

Single Family Residence

Area

Sonoma

Zip Code

95442

MLS ID

326049408

APN

053-250-019-000

Year Built

1880

Stories in Building

Unavailable

Possession

Close Of Escrow

Data Source

BAREIS

Origin MLS System

Bed

5

Bath

6 (5/1)

Parking

10

Guest Parking Available, No Garage, RV Access, RV Possible, RV Storage, Uncovered Parking Space, Uncovered Parking Spaces 2+

SQ FT

5,317

SQ FT Source

Assessor Auto-Fill

Lot SQ FT

992,297.0

Lot Acres

22.78 Acres

Pool Info

Built-In

Kitchen

Breakfast Area

Cooling

Central

Dining Room

Formal Area, Space in Kitchen

Exterior Details

Balcony, Uncovered Courtyard

Family Room

View

Living Room

Great Room

Flooring

Wood, Other

Fire Place

Wood Burning

Heating

Central

Laundry

Inside Area

Upper Level

Bedroom(s), Full Bath(s), Retreat

Main Level

Dining Room, Family Room, Full Bath(s), Kitchen, Living Room, Partial Bath(s), Street Entrance

Views

Forest, Hills, Mountains, Panoramic, Valley

Possession

Close Of Escrow

Basement

Finished

Architectural Style

Farmhouse, Rustic, 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.