For sale Home

Listed Jul 8, 2026

$17,900,000 Est. $118,392/mo

1288 Oak Knoll Avenue

  • 6

    Beds

  • 10

    Baths

  • 8,600

    Sq ft

The story

  • Pool

Conceived by acclaimed architect Holder Parlette and engineered by renowned civil engineer Karim Allana, this 8,600 sq ft estate was designed with a level of technical precision & systems integration rarely seen in residential construction. Built with off grid capability and commercial grade infrastructure, the residence combines advanced engineering with clean modern design & seamless indoor outdoor living. Centered around the 60 x 20 resort style pool, spa, & outdoor kitchen are five custom automated pergolas imported from Italy with integrated heat, fans, lighting, and intelligent sun tracking louvers that optimize shade & airflow throughout the day, including a primary poolside pergola spanning approximately 23' x 21'. Supported by a 12.5kW solar array & advanced mechanical systems throughout, the estate was intentionally designed for long term performance, efficiency, and elevated Napa Valley living. Enjoy sweeping 360 degree views across 4 acres of vineyards framed by the Mayacamas & Vaca mountain ranges in the heart of Napa Valley, surrounded by many of the region's most iconic wineries & vineyard estates. The vineyards may continue to be farmed & maintained by the current ownership for a seamless turnkey experience, while also offering the flexibility for a buyer to create a custom private label or oversee their own vineyard operations. The compound includes 6 bedrooms, 7 full baths, 3 half baths, dual primary suites, & a separate 2 bedroom, 2.5 bath guest house, all finished with artisan materials & exceptional attention to detail. Rare, refined, & exceptionally engineered, this is Napa Valley at its most sophisticated.

Facts & features

Home type

Home

Year built

2025

Floors

2

Lot size

7 acres

Price per sq ft

$2,081

Parking

4-car garage

Included features

  • Pool

    Yes

  • Fireplace

    2 fireplaces

  • Cooling

    Central Air

  • Heating

    Central

  • Appliances

    Built-In Gas Range, Built-In Refrigerator, Dishwasher, Wine Refrigerator

  • Flooring

    Concrete, Wood

  • Roof

    Metal

  • Lot Information

    Garden, Private, Landscaped, Sprinklers In Front, Sprinklers In Rear

  • Exterior

    Balcony, Fire Pit, Outdoor Kitchen, Garden

  • Water Source

    Private, Well

  • Sewer

    Septic Tank

  • View

    Mountain

Mortgage calculator

Estimated monthly payment

$118,392 /mo

7% rate · 30-yr fixed · 20% down

  • Principal & interest $95,271
  • Property tax $17,900
  • Insurance $5,221

Includes principal, interest, taxes & insurance.

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Listing Broker

Sotheby's International Realty

Broker Name

Sotheby's International Realty

Agent

Ginger Martin

Location

St. Helena CA 94574