A sanctuary in the heart of St. Helena, 850 Conn Valley Road offers something increasingly rare in Napa Valley: genuine privacy, unspoiled views, and the quiet that only twenty surrounding acres can guarantee. Set above the Valley floor and shielded by its own natural topography, this retreat is defined by the environmental beauty that encompasses the property. The neighbors are farther apart for serenity in your own space as you embrace the tranquility of nature. The land’s existence is a permanent reminder of peace and harmony within the lush greenery a protected frame for a life lived quietly and well. The residence itself is thoughtfully scaled at +/- 2,979 square feet, with three bedrooms and three baths. Light-filled rooms open to views in every direction. The flow is easy and familiar. This is the home that welcomes you. It is a home designed for life in wine country with peace and harmony a most welcoming retreat for those who are drawn to the natural world but still desire the lifestyle that wine country brings. One of the property’s most exceptional features is the beautifully designed detached guest house, offering outstanding versatility and value. Perfect as an in-law suite, private guest quarters, home office, or artist’s retreat, it provides comfort, privacy, and endless possibilities. Nestled among lush landscaping overlooking the peaceful creek, the guest house features a cozy fireplace, a private bathroom with a shower, a convenient kitchenette, and a spacious deck for relaxing or entertaining. Guests also enjoy easy access to the property’s charming bridge and private hiking trail, making it easy to experience the estate’s tranquil natural beauty. This rare detached guest house is a distinctive amenity that enhances both the property’s lifestyle and overall appeal. Outside, the wrap-around terraces and lush landscaping invite unhurried mornings and long evenings. The approach to the property winding, private and tranquil sets the tone before you ever step inside. Ten minutes from downtown St. Helena, you have the best of both worlds. A rare offering for the buyer seeking natural beauty: a Napa Valley retreat that prioritizes balance with privacy and Mother Nature.
Listing Provided Courtesy of Pavi Micheli at Engel & Volkers St. Helena
Property Details
Price:
$1,995,000
MLS #:
325047489
Status:
Active
Beds:
3
Baths:
3
Type:
Single Family
Subtype:
Single Family Residence
Neighborhood:
sthelena
Finished Sq Ft:
2,979
Lot Size:
871,200 sqft / 20.00 acres (approx)
Year Built:
1950
See this Listing
Schools
School District:
St. Helena Unified
Interior
Appliances
Dishwasher, Disposal, Double Oven, Free-Standing Refrigerator, Range Hood, Wine Refrigerator
Bathrooms
3 Full Bathrooms
Cooling
Central Air
Fireplaces Total
3
Flooring
Wood
Heating
Central, Fireplace(s)
Laundry Features
Dryer Included, Washer Included
Levels
One
Exterior
Exterior Features
Fire Pit, Outdoor Kitchen
Fencing
Partial
Garage Spaces
2
Lot Features
Landscape Back, Landscape Front, Landscape Misc, Private
Parking Features
Attached
Parking Spots
7
Parking Total
7
Patio And Porch Features
Uncovered Deck
Roof
Composition
Stories
1
Financial
Map
Community
- Address850 Conn Valley Road St. Helena CA
- CitySt. Helena
- CountyNapa
- Zip Code94574
Subdivisions in St. Helena
Market Summary
Current real estate data for Single Family in St. Helena as of Aug 24, 2026
79
Single Family Listed
122
Avg DOM
1,400
Avg $ / SqFt
$5,007,861
Avg List Price
Property Summary
- 850 Conn Valley Road St. Helena CA is a Single Family for sale in St. Helena, CA, 94574. It is listed for $1,995,000 and features 3 beds, 3 baths, and has approximately 2,979 square feet of living space, and was originally constructed in 1950. The current price per square foot is $670. The average price per square foot for Single Family listings in St. Helena is $1,400. The average listing price for Single Family in St. Helena is $5,007,861.
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Copyright 2026, Bay Area Real Estate Information Services, Inc. All Rights Reserved. Listing courtesy of Pavi Micheli at Engel & Volkers St. Helena
850 Conn Valley Road
St. Helena, CA


