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139 Oak St St Helena, CA 94574
$1,795,000 3 beds, 3 baths
1, 600 sqft
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Photo of Patrick Ahern

Patrick Ahern REALTORĀ® - Sales Associate 858-220-9001 m
858-459-0501 o
Lic#: 00610408
NRDS ID: 196548265
aherngroup@gmail.com
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Lic#: 00610408
NRDS ID: 196548265
aherngroup@gmail.com
La Jolla Prospect Office
1299 Prospect St, Ste. 100-101, 200-203 & 301-302
La Jolla, CA 92037
Phone: 858-459-0501
Fax: 858-459-3275
La Jolla Prospect 1299 Prospect St, Ste. 100-101, 200-203 & 301-302
La Jolla, CA 92037
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Fax: 858-459-3275
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Agent Remarks

Introducing a newly constructed 2026 Honomobo HO5 in St. Helena a bold, sophisticated residence designed to celebrate light, landscape, and effortless Wine Country living. More than 60 feet of floor-to-ceiling glass stretches across the home, drawing the surrounding hills, mature trees, and colorful evening skies into nearly every room. Expansive accordion doors dissolve the boundary between the interior and the custom wraparound deck, creating an extraordinary environment for entertaining, outdoor dining, or simply watching the sun settle over the valley. Inside, approximately 1,600 square feet of thoughtfully designed living space includes three bedrooms, two and one half baths, engineered hardwood flooring, modern appliances, contemporary electronics, and clean architectural finishes. Energy-efficient heat-pump heating and air conditioning and a heat-pump water heater bring next-generation comfort to the home. A custom-built two-car garage, generous additional parking, sculptural water features, natural stonework, and warm wood and steel accents complete a property unlike anything else currently offered in St. Helena.

Listing Details

Property type: Single Family Residence (Single Family)
Status: Active
MLS# 41144661
List price is $1,795,000 Reduced by $100,000 on 9/24/2026
Beds: 3
Baths: 3 (2 full) (1 half)
None fireplaces
Built in 2026
1,600 sqft
1 story
1.07 acres
Lot size: 1.0713
Subdivision: Not Listed
County: Napa
Construction: Steel,Wood Siding
Appliances: Dryer,Washer
Parking description: Garage
Lot description: Back Yard,Sloped Down,Front Yard,Garden,Secluded,Yard
Heating description: Heat Pump

Last Updated: 9/30/2026

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Lat/Long: 38.542849, -122.468107.
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Listing Agent: Mike Rowland
Co Listing Agent: Lewis Bishop
Lic#: 00610408
Office Name: La Jolla Prospect

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Total population of , which has changed by % since 1990.
The median age of the population is , while the median age of dwellings is .
Out of households, are families.

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Photo of Patrick Ahern

Patrick Ahern REALTORĀ® - Sales Associate 858-220-9001 m
858-459-0501 o
Lic#: 00610408
NRDS ID: 196548265
aherngroup@gmail.com
Text Me
Call My Cell
Call My Office
Lic#: 00610408
NRDS ID: 196548265
aherngroup@gmail.com

La Jolla Prospect Office
1299 Prospect St, Ste. 100-101, 200-203 & 301-302
La Jolla, CA 92037
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