3836 Antonini Way

This extraordinary Ruby Hill custom estate was designed to make everyday life feel like a retreat. Set in a private setting with sweeping Livermore Valley, vineyard and Mt. Diablo views, oversized, light-filled rooms flow effortlessly for both entertaining and family living. At its heart is a completely reimagined kitchen—gutted and rebuilt with custom cabinetry, a reshaped oversized island, Atlantic Lava marble countertops, and the timeless travertine floors remain. A pony wall was removed and newly added steps create a beautiful connection to the family room. Brand-new Thermador and Miele appliances include four ovens, three dishwashers and a built-in coffee/espresso system, complemented by a Perlick wine refrigerator and temperature-controlled 500+ bottle wine room. The volume-ceiling family room opens to a wet bar and game room before flowing outside to a true resort setting. A solar-heated saltwater pool and spa, outdoor kitchen with island and BBQ, covered cabana with fireplace and TV, illuminated koi pond, multi-level waterfall and upper view deck create an unforgettable backdrop for entertaining. The main level offers a private guest suite plus executive office with fireplace and patio access. Upstairs, the secluded primary retreat occupies its own wing with a completely redesigned spa bath featuring Caliber custom cabinetry, jetted tub, four-sprayer rain shower and custom-organized closet. Three additional bedrooms each offer ensuite baths. Two oversized laundry rooms—one on each level—plus an approximately 250 sq ft bonus room add exceptional convenience. This is a must see in Ruby Hill. Beyond the home, where HOA community amenities include 2 guard gated entrances, greenbelt walking trail, seasonal community pool, clubhouse, basketball courts, cricket field, soccer field, tennis & pickleball courts, and a community park. A separate social or full golf membership in The Club @ Ruby Hill gives you access to the private tennis & pickleball courts, year round heated swimming pool, NEW members only gym, Pilates & yoga room, a full golf membership gives you all of this plus access to the beautiful golf course, clubhouse with spa like locker rooms, The Reserve restaurant, and The Grille restaurant. A social membership also gives you charging capability at the 2 restaurants. A private 24 hour guard gated community sits conveniently off of Highway 84 for an easy commute to the South Bay. Opportunities like this don’t come often! Call for private showing!

Current Status

New

Original Price

$5,498,800

List Price

$5,498,800

On Market Date

Sep 11, 2026

Property Type

Detached

D/N/S

Ruby Hill

Zip Code

94566

MLS ID

41148028

APN

950273

Year Built

2003

Stories in Building

2

Possession

Close Of Escrow

Data Source

MAXEBRDI

Origin MLS System

CONTRA COSTA

Bed

5

Bath

5.5 (5/1)

Parking

4

Garage, 1/2 Car Space, Garage Door Opener

SQ FT

6,350

SQ FT Source

Owner

Lot SQ FT

25,148.0

Lot Acres

0.58 Acres

Pool Info

Gunite, In Ground

Kitchen

Dishwasher, Double Oven, Gas Range, Microwave, Oven, Refrigerator, Self Cleaning Oven, Dryer, Washer, 220 Volt Outlet, Breakfast Nook, Counter - Solid Surface, Eat-in Kitchen, Disposal, Gas Range/Cooktop, Kitchen Island, Oven Built-in, Pantry, Self-Cleaning Oven, Updated Kitchen

Cooling

Central Air

Disclosures

Nat Hazard Disclosure

Entry Level

Exterior Details

Garden, Back Yard, Front Yard, Garden/Play

Flooring

Hardwood, Tile, Carpet

Foundation

Fire Place

Electric, Family Room, Living Room, Other

Heating

Zoned

Laundry

Dryer, Laundry Room, Washer

Upper Level

4 Bedrooms, 4 Baths, Laundry Facility

Main Level

1 Bedroom, 1.5 Baths, Laundry Facility, Main Entry

Views

Park/Greenbelt, Panoramic

Possession

Close Of Escrow

Basement

Crawl Space

Architectural Style

Traditional

Non-Master Bathroom Includes

Shower Over Tub, Skylight(s), Solid Surface, Tile, Tub, Updated Baths, Stone

Construction Status

Existing

Additional Miscellaneous Features

Garden, Back Yard, Front Yard, Garden/Play

Location

Level, Premium Lot, Secluded, Back Yard, Front Yard, Landscaped

Roof

Tile

Water and Sewer

Public

Fee

$295

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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