7121 Berryessa Knoxville Road

The Berryessa Lake House is a breathtaking fusion of architectural innovation and engineering precision. Situated on 95 acres in Napa County, this award-winning, IwamotoScott-designed residence is a steel & glass marvel offering panoramic views of Lake Berryessa & the surrounding valley landscape. The home's bold hexagonal design and cantilevered concrete foundation appear to hover above the natural terrain. Massive European glass doors slide seamlessly into wall pockets, opening the living area to the outdoors. While the exterior boasts a dramatic silhouette, the interior is thoughtfully designed with rectangular living areas, prioritizing comfort and functionality. The home includes three bedrooms, an office, two full baths, and a dramatic great room surrounding a central glass courtyard, a serene focal point that brings natural light deep into the home. The detached garage, with aircraft hangar doors, serves as the command center for the property's infrastructure. Designed to be fully self-sufficient with its own solar energy system, spring-fed water supply and commercial generator. The vast acreage offers several potential building sites for expansion. This one-of-a-kind property is ideal for a discerning buyer seeking privacy, sustainability, and impeccable modern design.

Days on Market

25 days

Current Status

Active

Original Price

$3,400,000

List Price

$3,400,000

On Market Date

Oct 8, 2025

Property Type

Single Family Residence

Area

Napa

Zip Code

94558

MLS ID

325081045

APN

019-280-002-000

Year Built

2016

Stories in Building

Unavailable

Possession

Close Of Escrow

Data Source

BAREIS

Origin MLS System

Bed

4

Bath

2

Dual Flush Toilet, Low-Flow Shower(s), Low-Flow Toilet(s), Quartz, Radiant Heat, Steam, Tile, Window

Parking

10

Detached, Garage Door Opener, Mechanical Lift, RV Garage Detached

SQ FT

2,228

SQ FT Source

Assessor Agent-Fill

Lot SQ FT

4,142,992.0

Lot Acres

95.11 Acres

Pool Info

Built-In, Gas Heat, Gunite Construction, Pool Cover, Salt Water, Solar Heat

Kitchen

Quartz Counter

Cooling

Central, Heat Pump, MultiUnits, MultiZone

Dining Room

Dining/Living Combo

Living Room

Cathedral/Vaulted, Deck Attached, Great Room, View

Flooring

Concrete

Foundation

Concrete, Raised, Slab

Heating

Central, Heat Pump, MultiUnits, Propane, Radiant, Radiant Floor, Steam

Laundry

Laundry Closet, Washer/Dryer Stacked Included

Main Level

Bedroom(s), Dining Room, Full Bath(s), Kitchen, Living Room, Primary Bedroom

Views

Hills, Lake, Mountains, Panoramic, Ridge, Valley, Water

Possession

Close Of Escrow

Architectural Style

Contemporary, Modern/High Tech

Fee

$0

MLS and other Information regarding properties for sale as shown in Theo have been obtained from various sources such as sellers, public records, agents and other third parties. This information may relate to the condition of the property, permitted or unpermitted uses, zoning, square footage, lot size/acreage or other matters affecting value or desirability. Unless otherwise indicated in writing, neither brokers, agents nor Theo have verified, or will verify, such information. If any such information is important to buyer in determining whether to buy, the price to pay or intended use of the property, buyer is urged to conduct their own investigation with qualified professionals, satisfy themselves with respect to that information, and to rely solely on the results of that investigation.

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