---
listing_id: BA325043430
status: Active
price: 4950000
beds: 5
baths_full: 5
baths_half: 1
sqft_living: 6594
sqft_lot: 493970
lot_acres: 11.34
year_built: 1998
property_type: Residential
property_subtype: Single Family Residence
address: "11670 Byron Hwy"
city: Brentwood
state: CA
zip: 94513
county: "Contra Costa County"
lat: 37.9152754
lng: -121.6460227
days_on_market: 345
hoa_fee: 
hoa_frequency: 
garage_spaces: 6
list_agent: "Timothy Allen"
list_office: "Coldwell Banker Realty"
list_agent_phone: "(831) 214-1990"
list_agent_license: 00891159
mls_source: REBAREIS
modified: 2025-05-12
transaction_type: buy
---

Home | Contra Costa County | Brentwood | 94513 | 11670 Byron Hwy

11670 Byron Hwy, Brentwood, CA 94513

MLS: BA325043430 | Status: Active | Price: $4,950,000
Beds/Baths: 5 / 5 /1
Property Type: Residential

Quick Facts

Beds Baths Sq Ft Acres Lot Yr Built
5 5 /1 6,594 11.34 1998

Remarks

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.

MLS Listing Information

Field Value
MLS # BA325043430
MLS Source Bay Area Real Estate Information Services, Inc.
Days on Site 345

Features

Interior Features

Feature Details
Family Room Other
Fireplace Family Room, Living Room
Laundry In Laundry Room, Laundry - Yes
Cooling Central Forced Air
Heating Central Forced Air, Solar

Exterior Features

Feature Details
Roof Tile
Pool In Ground, Pool - Yes
Style Custom

Parking, School, and Other Information

Feature Details
Garage/Parking Attached Garage, Garage: 6 Car(s)
Sewer Septic Tank
Water Well

Contact Information

Timothy Allen
Coldwell Banker Realty
License #: 00891159
Phone: (831) 214-1990

Property Units

# Buildings # Leased Units # Total Units
0

School Ratings

School data provided by GreatSchools.org

Nearby Schools

School Type Grades Distance Rating
Timber Point Elementary School public K-5 1.53 mi 6
Byron Institute for Independent Study public K-8 1.53 mi 4
La Paloma High (Continuation) School public 9-12 1.94 mi 2
Old River Elementary public K-8 2.00 mi 7
Garin Elementary School public K-5 2.57 mi 5
Excelsior Middle School public 6-8 2.62 mi 4
Edna Hill Middle School public 6-8 2.63 mi 8
Discovery Bay Elementary School public K-5 2.80 mi 8
Liberty High School public 9-12 2.92 mi 7
Liberty Adult Education public UG 3.11 mi N/A
Independence High School public 9-12 3.13 mi 4
Mary Casey Black Elementary public K-5 3.22 mi 7
Brentwood Elementary School public K-5 3.53 mi 7
Knightsen Elementary School public K-8 3.73 mi 6
William B. Bristow Middle School public 6-8 4.10 mi 4
Marsh Creek Elementary School public K-5 4.20 mi 6
Ron Nunn Elementary School public K-5 4.71 mi 6
Summer Lake Elementary public K-5 4.91 mi 5
R. Paul Krey Elementary School public K-5 4.99 mi 9

Disclosures

©2026 Bay Area Real Estate Information Services, Inc. All rights reserved. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Information provided is for personal, non-commercial use by the viewer and may not be redistributed without explicit authorization from Bay Area Real Estate Information Services, Inc.

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This listing information is up-to-date as of May 12, 2025. For the most current information, please contact Timothy Allen, (831) 214-1990.