This is a one of a kind property. The original Trione Estate. This home has not been on the market in 42 years. This beauty is nestled high up in the natural beauty of Montecito Heights, overlooking Proctor Terrace and Grace Tract neighborhoods, with stunning views. Situated on over 4.5 acres of sprawling land, this mid century modern home is an entertainers dream. With over 4000+ sqft of single level living space. Putting green, pool, maids quarters, guest house and room for horses. Some of the best unobstructed views in Sonoma County. Over 8000 sqft of decking for entertaining and outdoor living. This unparalleled estate is a one of a kind with privacy, views, space and proximity close to downtown, schools, parks, wineries, shopping and restaurants. A true Sonoma County Gem!
Single-familyProperty Type
1956Year Built
4.5 acresLot Size
$687Est. Price/Sq.Ft.
2 garage spacesParking
Listed by Andrew Saltzman•DRE #01932175• W Real Estate
•707-303-6354 (agent)
•ahsaltzman@gmail.com (agent)
Listed by Randy Waller•DRE #01795950• W Real Estate
•707-843-1382 (agent)
•randy@wrealestate.net (agent)
Bought with Pamela Kraft•DRE #00846593• Coldwell Banker Realty
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Permits
Beds
6
Baths
4
Stories
1
Lot width
—
Lot depth
—
Lot size
4.41 Acres
Year renovated
1995
Sq. Ft.
4,044
Year built
1956
Style
Single Family Residential
County
Sonoma County
APN
181360001000
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 13, 2026.
R-1-15-SR
Single-Family Residential - 15,000 sq ft - Scenic Road Combining District
The R-1 zoning district is applied to areas of the City intended to be maintained as residential neighborhoods comprised of detached and attached single-family houses, clustered Residential hillside projects, and small multi-family projects, together with compatible accessory uses. The maximum allowable density ranges from 2 to 13 dwellings per acre, with the specific allowable density for each parcel shown on the zoning map by a numerical suffix to the R-1 map symbol see Section 20-22.040. The R-1 zoning district implements and is consistent with the Residential Very Low Density where residential clustered on hillsides is desirable, Low Density or Open Space, Low Density, and Medium Low Density land use classifications of the General Plan. The SR combining district is intended to enhance and preserve the natural and constructed features that contribute to the character of scenic roads. Natural and constructed features include trees, rock walls, view corridors, road configuration and tree canopy.
Permitted uses
Include but are not limited to:
Agriculture-Other
Day care facility
Healthcare-Other
Housing-Single unit
Housing-Student
Housing-Other
Infrastructure-Other
Housing-Mobile home park
Jan 12, 2024 • Final
Residential pool-spa
Install a bench and spa and modify the contour of an existing pool. Install additional equipment for the new spa that complies with energy standards.
Pool and hot tub
Jan 12, 2024 • Final
Residential addition-alteration
Demolish an existing deck and four bathrooms, including all fixtures and sheetrock. A separate permit is required for the reconstruction of the deck and bathrooms.
Bathroom
Demolition
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.