11670 Byron Hwy, Brentwood, CA

$4,950,000

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5

Beds

6

Baths

6,594

Square feet

11.34

Acres

About 11670 Byron Hwy

Welcome to the Tamayo Estate and Vineyard, an extraordinary 11.34-acre retreat nestled in Brentwood's prestigious gated enclave. This Mediterranean-inspired estate boasts nearly 6,600 SqFt of refined living space and approximately 3,000 SqFt of covered patios, offering seamless indoor-outdoor living. The property features expansive Syrah vineyards, benefiting from pre-1914 water rights via the Byron Irrigation District. Inside, a grand foyer leads to spacious living areas, a state-of-the-art movie theater, and private quarters ideal for guests or staff. The gourmet kitchen, adorned with stone countertops and premium appliances, caters to culinary enthusiasts. Owned solar panels reduce the estate's environmental footprint. Recent renovations have enhanced the property's elegance, while the in-ground pool and spa provide a resort-like ambiance. Other highlights include the 5,000 bottle wine cellar with a temperature-controlled room and the 6 car garages within a private motor court. Strategically set within a community where future homes built will be a minimum of 5,000 SqFt, the estate offers unparalleled privacy and exclusivity. Breathtaking views of Mt. Diablo serve as a picturesque backdrop. Adjacent 3 parcels available for sale, which would expand the estate to ~44 acres.

Features of 11670 Byron Hwy

MLS® # 325043430
Price $4,950,000
Bedrooms 5
Bathrooms 6.00
Full Baths 5
Half Baths 1
Square Footage 6,594
Acres 11.34
Year Built 1998
Type Residential
Sub-Type Single Family Residence
Status Active

Community Information

Address 11670 Byron Hwy
Area Brentwood
City Brentwood
County Contra Costa
State CA
Zip Code 94513-3706

Amenities

Utilities Solar, Other
Parking Spaces 6
Parking Attached
Garage Spaces 6
Has Pool Yes
Pool Yes

Interior

Heating Central
Cooling Central
Fireplace Yes
Fireplaces Family Room, Living Room

Exterior

Lot Description Other
Roof Tile

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Listing courtesy of Timothy Allen of Coldwell Banker Realty

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Listing information last updated on June 13th, 2026 at 5:05pm CDT.