1740 Conn Valley Rd

St. Helena, CA 94574

$3,850,000
Price
3
Beds
3,626 Sq. Ft.
$1,062 / Sq. Ft.
3,626
Sq. Ft.
$1,062
per Sq. Ft.
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Guest House
Guest House
Guest House
Guest House
Guest House
Guest House
Guest House
Guest House
Guest House
Guest House
Guest House
Guest House
Guest House
Guest House
Guest House
Guest House

Description

Discover a rare sanctuary where privacy meets panorama on +/- 18.86 acres of pristine Napa Valley terrain. This exceptional estate captures sweeping views of Lake Hennessey and the dramatic Vaca Mountain ridgeline, while enjoying close proximity to the lake itself a one of Napa Valley's most tranquil natural settings, ideal for hiking, wildlife viewing, and quiet escape. The main residence spans +/- 3,626 square feet with three bedrooms and 3.5 baths, while a delightful +/- 1,200 square foot guest...Discover a rare sanctuary where privacy meets panorama on +/- 18.86 acres of pristine Napa Valley terrain. This exceptional estate captures sweeping views of Lake Hennessey and the dramatic Vaca Mountain ridgeline, while enjoying close proximity to the lake itself a one of Napa Valley's most tranquil natural settings, ideal for hiking, wildlife viewing, and quiet escape. The main residence spans +/- 3,626 square feet with three bedrooms and 3.5 baths, while a delightful +/- 1,200 square foot guest house extends your living space and welcomes friends and family with its own private retreat. With generous scale, a timeless footprint, and exceptional positioning on the land, the estate presents a compelling opportunity to thoughtfully refresh or reimagine the residence to reflect your own vision of modern wine country living. Step outside to find your own private resort: a sparkling pool, wrap-around porch, and expansive terraces invite long afternoons and evening gatherings. The property also offers equestrian amenities including a riding arena and small stable, creating an ideal setting for horse lovers while maintaining wide open space and privacy. Thoughtfully landscaped grounds create natural gathering spaces perfect for intimate dinners or larger celebrations under open skies. Despite its peaceful setting, St. Helena is just minutes awaylegendary wineries, Michelin-starred dining, and sophisticated shops all within easy reach. With remarkable views, usable acreage, and a residence ready for its next chapter, this is a rare opportunity to shape a truly signature Napa Valley estate.
  1. Listed by Pavi Micheli • DRE #01157852 • Brokerage DRE #02068841 • Engel & Volkers St. Helena
  2. Listed by Will Densberger • DRE #01811932 • Brokerage DRE #02068841 • Engel & Volkers St. Helena

Property Details for 1740 Conn Valley Road

View Description
Hills, Lake, Mountains, Vineyard
Cross Street
Conn Valley Road
Total Parking Spaces
10
LISTING UPDATED: 03/24/2026 11:25 AM

Property Details for 1740 Conn Valley Road

StatusActive
MLS #326019222
Days on Compass19
Taxes-
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential / Single Family Residence
Year Built1982
Lot Size18.87 AC / 821,977 SF
CountyNapa County
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Location

Listing Courtesy of Engel & Volkers St. Helena, Pavi Micheli, DRE #01157852; Engel & Volkers St. Helena, Will Densberger, DRE #01811932
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Building Information for 1740 Conn Valley Road

Stories2Year Built1982Building Size-Lot Size18.87 AC / 821,977 SF

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$19,949 per month

30 year fixed, 6.11% Interest

Principal and Interest

$18,685

Property Taxes

$1,264

HOA Dues

$0

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Property Information for 1740 Conn Valley Road

Summary
Location and General Information
  • Area/District: St. Helena
  • Area Short Display: E0600
  • Directions to Property: From the Silverado Trail, turn onto Howell Mtn Road and continuing following as it turns to Conn Valley Road. Property will be on the left at the end of Conn Valley Road before the Lake Hennessey Shoreline Trail parking and access.
  • Area Long Display: St. Helena
Taxes and HOA Information
  • Association: No
  • Association Fee: $0
  • APN: 025-200-051-000
Parking
  • Parking Features: Detached, Garage Door Opener, Uncovered Parking Spaces 2+
  • Carport Spaces: 0
  • Garage Spaces: 3
  • Open Parking Spaces: 7
Virtual Tour
  • Virtual Media Count: 0
Property
Lot Information
  • Square Footage: 3626.0
  • Square Footage Source: Assessor Auto-Fill
  • Year Built Source: Assessor Auto-Fill
  • Lot Size Source: Assessor Auto-Fill
  • Lot Size Square Feet: 821977.0
  • Lot Features: Private, Shape Irregular
  • Property Condition: Original
Property and Assessments
  • Security Features: Security Gate
  • Senior Community: No
  • Picture Count: 57
  • Property Disclaimer: All data, photos, visualizations, and information regarding a property, including the property's compliance with state and local legal requirements and all measurements and calculations of area, have been obtained from various sources, and may include such material that has been generated by use of artificial intelligence. Such information and material have not been and will not be verified for accuracy by the listing broker or the multiple listing service, and are not guaranteed as complete, accurate or reliable. Such information and material should be independently reviewed and verified for accuracy. This information and material are intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Utilities
  • Sewer: Septic System
  • Water Source: Well Shared
  • Utilities: Cable Available, Electric, Internet Available, Propane
Interior and Exterior Features
Exterior Features
  • Driveway/Sidewalks: Paved Driveway
  • Horse Property: Yes
  • Horse Property Features: 1-6 Stalls, Arena
  • Stories: 2
  • Levels: 2 Story
  • Main Level: Bedroom(s), Full Bath(s), Kitchen, Living Room, Partial Bath(s)
  • Patio And Porch Features: Covered Deck, Front Porch
  • Other Structures: Guest House
  • Pool: Yes
  • Pool Features: In Ground, On Lot, Pool Sweep
  • Pool: Yes
Interior Features
  • Heating: Central, Fireplace(s), Heat Pump
  • Cooling: Central, Heat Pump
  • Basement: Partial
  • Bath Features: Bidet, Double Sinks, Shower Stall(s), Tile, Window
  • Full Bathrooms: 3
  • Half Bathrooms: 1
  • Bathrooms: 4.0
  • Bedrooms: 3
  • Dining Room Features: Dining/Living Combo, Skylight(s)
  • Family Room Features: View
  • Living Room Features: Cathedral/Vaulted, Deck Attached, Skylight(s), View
  • Kitchen Features: Breakfast Area, Island w/Sink, Laminate Counter
  • Flooring: Carpet, Tile, Wood
  • Fireplace Features: Family Room, Living Room, Stone, Wood Burning
  • Fireplace: Yes
  • Interior Features: Cathedral Ceiling
  • Appliances: Built-In Electric Oven, Built-In Electric Range, Compactor, Dishwasher, Disposal, Double Oven, Free Standing Refrigerator, Microwave
  • Laundry Features: Cabinets, Dryer Included, Electric, Ground Floor, Inside Room
  • # of Fireplaces: 3
  • # of Rooms: 0
  • Spa: No
Multi Family
Multi-Family Information
  • # of Units: 0
Multi-Family Additional Information
  • 2nd Unit Bedrooms: 1
  • 2nd Unit Approx SqFt: 0.0
  • 2nd Unit Full Baths: 1
  • 2nd Unit Partial Baths: 0
  • 2nd Unit Kitchen: Yes
  • 2nd Unit Occupied: No
  • 2nd Unit Rents for: $.00
  • 2nd Unit Type: 2nd Unit Detached
Unit 2
  • ADU/2nd Unit: Yes

Property History for 1740 Conn Valley Road

DateEvent & SourcePriceAppreciation
Mar 10, 2026

Listed (Active)

REBAREIS #326019222

$3,850,000—
DateEvent & SourcePrice
03/10/2026

Listed (Active)

REBAREIS #326019222

$3,850,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 1740 Conn Valley Road

Taxable ValueLand$357,811Additions$1,071,799Total$1,429,610
Tax Record2025$15,170 ($1,264 / month)
Home Facts
Beds3Baths3.5Total Finished SqFt3,626 SqFtAbove Grade Finished SqFt3,626 SqFtLot Size821,977 SqFtStyleMiscellaneous ResidentialYear Built1982ZoningAWCountyNAPAAPN025-200-051-000Fireplace TypeHas Fireplace

Schools near 1740 Conn Valley Road

This home is within Saint Helena Unified School District.
Rating
School
Type
Grades
Distance
Saint Helena Primary School
Public - K to 2
Saint Helena Elementary School
Public - 3 to 5
Robert Louis Stevenson Intermediate School
Public - 6 to 8
Saint Helena High School
Public - 9 to 12
Rating
School
Distance
Saint Helena Primary School
PublicK to 2

Saint Helena Elementary School
Public3 to 5

Robert Louis Stevenson Intermediate School
Public6 to 8

Saint Helena High School
Public9 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 1740 Conn Valley Road, St. Helena, CA 94574

1740 Conn Valley Road is a single family home for sale in St. Helena, CA 94574. This property was listed for sale on March 10, 2026 by Engel & Volkers St. Helena, it's currently listed at $3,850,000. This listing's school district is Saint Helena Unified School District. Nearby schools include Saint Helena Primary School, Saint Helena Elementary School and Robert Louis Stevenson Intermediate School. 1740 Conn Valley Road is a 3-bed, 4-bath, 3,626 sqft single family home built in 1982.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of Engel & Volkers St. Helena, Pavi Micheli, DRE #01157852; Engel & Volkers St. Helena, Will Densberger, DRE #01811932

Based on information from one of the following Multiple Listing Services: San Francisco Association of Realtors, the MLSListings MLS, the BAREIS MLS, the EBRD MLS, Shasta Association of REALTORS® Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by San Francisco Association of Realtors, the MLSListings MLS, the BAREIS MLS, the EBRD MLS, Shasta Association of REALTORS® is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.