405 London Way

An extraordinary, legacy Mediterranean estate commanding panoramic views over the Sonoma Valley. Privately approached through a dramatic double-gated entry lined with manicured hedges and stately cypress, this rare offering blends architectural presence, privacy, and elevated wine-country living. The main residence spans approximately 4,400+ sq ft with 3 bedrooms and 2.5 baths, complemented by a separate 1-bedroom, 1-bath guesthouse. A detached 7-car garage carriage house with game room and additional guest quarters above offers exceptional flexibility for hosting, recreation, or multi-generational use. Designed to embrace its setting, expansive terraces and an infinity-edge pool frame sweeping Valley of the Moon vistas. Distinctive amenities include a private indoor gun range and a Generac whole-property backup power system, ensuring both discretion and resilience. A hobby vineyard with on-site winemaking facilities completes the estate. Two solar systems support the property, including solar pool heating. Utterly private, yet moments from the Sonoma Plazaan heirloom-quality estate of remarkable rarity in Sonoma Valley.

Days on Market

2 days

Current Status

Active

Original Price

$4,500,000

List Price

$4,500,000

On Market Date

Dec 23, 2025

Property Type

2 Houses on Lot

Area

Sonoma

Zip Code

95476

MLS ID

325104155

APN

056-564-023-000

Year Built

2003

Stories in Building

Unavailable

Possession

Close Of Escrow

Data Source

BAREIS

Origin MLS System

Bed

5

Bath

6 (5/1)

Parking

15

Detached

SQ FT

7,740

SQ FT Source

Not Verified

Lot SQ FT

172,062.0

Lot Acres

3.95 Acres

Pool Info

Built-In

Kitchen

Island

Cooling

Central

Exterior Details

Balcony, Built-In Barbeque, Kitchen

Fire Place

Den, Family Room

Heating

Central

Laundry

Cabinets, Dryer Included, Hookups Only, Inside Area, Inside Room, Laundry Closet, Sink

Main Level

Bedroom(s), Dining Room, Family Room, Kitchen, Living Room, Partial Bath(s)

Possession

Close Of Escrow

Architectural Style

Mediterranean

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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