4300 Lake County Highway

Experience this striking 5-acre architectural estate designed by renowned architect Nan Hearst. The 3,600 sq. ft. residence showcases a distinctive half-circle design positioned to capture sweeping views over Calistoga, surrounding vineyards, and the Napa Valley beyond. Expansive walls of glass fill the home with natural light and frame the dramatic scenery. Inside are three spacious bedrooms and two baths, with soaring ceilings, wood and concrete floors, and multiple fireplaces creating warmth and character. The chef's kitchen includes a premium gas range, Sub-Zero refrigerator, and a scenic balcony overlooking the valley. Outdoor living centers around a sparkling pool with a dedicated bath, creating a private resort-style setting. The property is thoughtfully equipped with solar power, Tesla Powerwall, backup generator, a 5,000-gallon water tank, metal roof with fire sprinklers, carport, and an on-site fire hydrant. An 1,100 sq. ft. ADU offers two bedrooms, two baths, partial kitchen, fireplace, laundry, and an attached garageideal for guests or rental income. Just 10 minutes to Calistoga, this rare Napa Valley property combines architecture, sustainability, and breathtaking vineyard views.

Days on Market

0 days

Current Status

Active

Original Price

$2,495,000

List Price

$2,495,000

On Market Date

Mar 17, 2026

Property Type

2 Houses on Lot

Area

Calistoga

Zip Code

94515

MLS ID

326021826

APN

017-042-003-000

Year Built

1999

Stories in Building

Unavailable

Possession

Close Of Escrow

Data Source

BAREIS

Origin MLS System

Bed

5

Bath

5

Double Sinks, Jetted Tub, Tile, Walk-In Closet, Window

Parking

8

Attached, Covered, Interior Access

SQ FT

4,738

SQ FT Source

Assessor Auto-Fill

Lot SQ FT

217,800.0

Lot Acres

5.0 Acres

Pool Info

Built-In, Gas Heat

Cooling

Central

Dining Room

Formal Room, Sunken

Exterior Details

Balcony, Uncovered Courtyard

Living Room

Cathedral/Vaulted, Deck Attached, Sunken, View

Flooring

Carpet, Concrete, Tile, Wood

Foundation

Block, Slab

Fire Place

Gas Piped, Living Room, Primary Bedroom, Wood Burning

Heating

Fireplace(s), Natural Gas, Solar Heating

Laundry

Dryer Included, Electric, Gas Hook-Up, Inside Room, Sink, Washer Included

Main Level

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

Views

City Lights, Hills, Mountains, Panoramic, Vineyard, Woods

Possession

Close Of Escrow

Basement

None

Architectural Style

Contemporary

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.

School data provided by GreatSchools. School service boundaries are intended to be used as reference only. To verify enrollment eligibility for a property, contact the school directly.