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139 Oak St
Single Family Residence 
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139 Oak St 
$1,895,000
Offered at
St Helena, CA 94574
Napa County
3
Beds
3
Baths
1,540
Sq Ft
46,666
Lot Sq Ft
2026
Year Built
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…
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.
Facts & Features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
Appliances
- Included: Dryer, Washer
Features
- Flooring: Tile
- Has fireplace: No
Interior area
- Total interior livable area: 1,540 sqft
Property
Parking
- Total spaces: 2
- Parking features: Garage
- Attached garage spaces: 2
Features
- Stories: 1
- Patio & porch: Deck, Patio
- Has private pool: No
Lot
- Size: 1.07 Acres
- Features: Back Yard, Sloped Down, Front Yard, Garden, Secluded, Yard
Details
- Parcel number: 021174003000
Construction
Type & style
- Home type: Residential
- Property subtype: Single Family Residence
Materials
- Steel, Wood Siding
Condition
- Year built: 2026
Location
Mike Zwarg
Broker / Owner
951-528-0626
mike@mzhomes.us
mike@mzhomes.us
Listing Office: Windermere Rowland Realty · Listing Agent: Mike Rowland · CRMLS
The property listing information on this website comes in part from the California Regional Multiple Listing Service (CRMLS) via Internet Data Exchange (IDX). Information is deemed reliable but is not guaranteed accurate by the MLS, and all properties are subject to prior sale, change, or withdrawal. This data is provided exclusively for consumers' personal, non-commercial use, and may not be used for any purpose other than identifying properties consumers may be interested in purchasing. Buyers should independently verify all information, including square footage, lot size, schools, and property condition.
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139 Oak St, St Helena, CA 94574
951-528-0626
mike@mzhomes.us
mzhomes.us
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