Test Stay This Opulence. Nestled on 44 acres of rolling countryside, this 4,498 sq ft custom estate offers a lifestyle where luxury meets legacy. Featuring 4 bedrooms and 4 spa-inspired bathrooms, every inch of the home has been artfully designed with bespoke finishes, soaring ceilings, and timeless elegance. At its heart, 30 acres of thriving grapevines and 5 acres of flourishing olive trees create the perfect vineyard retreat for the discerning wine and olive oil connoisseur. A remarkable 7,855 sq ft event center and tasting room elevate the property into a destination, offering endless opportunities for hosting gatherings both intimate and grand. For those who crave recreation, the estate boasts its very own “Field of Dreams” baseball diamond—whimsical yet refined—seamlessly blending leisure with sophistication. Car enthusiasts will revel in the expansive 5,282 sq ft of garage space, while 2,295 sq ft of covered porches and loggias invite relaxation amidst breathtaking views of vineyards, olive groves, and open skies. Every element has been thoughtfully crafted to combine elegance, function, and charm, creating an unmatched sanctuary that is as inspiring as it is inviting. This is more than a home—it’s a legacy estate, an experience, and a lifestyle waiting to be embraced.
Single-familyProperty Type
2006Year Built
44 acresLot Size
$1,154Est. Price/Sq.Ft.
2 car garageParking
Listed by Ginamarie Olson•DRE #02226206• WR Properties
Listed by Wesley Olson•DRE #01248834
Bought with Ginamarie Olson•DRE #02226206• WR Properties
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Earn from this home
Sell
$960,949
Est. take-home
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Rent
$4,063/mo
Redfin rental estimate
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Market trends in 94514, CA
Last updated August 2026
Sale-to-List Price
85.0%
0.0% MoM
Median sale price
$477K
$207 MoM
Avg. days on market
32d
0 days MoM
Recently sold homes
2
0 MoM
Provided by Redfin
Sale history for 3501 Byer Rd
Date
Event
Price
bridgeMLS, Bay East AOR, or Contra Costa AOR #41111190
Feb 2, 2026
Sold
$5,000,000
$1,112/sq ft
Jan 18, 2026
Pending
—
Sep 11, 2025
Listed
$6,998,000
$1,556/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #41097541
Jun 18, 2025
Listing Removed
—
May 16, 2025
Price Changed
*
May 15, 2025
Listed
*
bridgeMLS, Bay East AOR, or Contra Costa AOR #41075483
Apr 6, 2025
Listing Removed
—
Apr 2, 2025
Price Changed
*
Oct 17, 2024
Listed
*
bridgeMLS, Bay East AOR, or Contra Costa AOR #41076670
Oct 17, 2024
Listing Removed
—
Oct 17, 2024
Listed
*
bridgeMLS, Bay East AOR, or Contra Costa AOR #40726631
Jun 13, 2016
Sold
$5,000,000
$1,112/sq ft
Mar 18, 2016
Pending
—
Jan 20, 2016
Listed
$5,200,000
$1,156/sq ft
bridgeMLS, Bay East AOR, or Contra Costa AOR #40554915
May 25, 2012
Sold
$1,800,000
$400/sq ft
May 2, 2012
Pending
—
Mar 3, 2012
Price Changed
$2,498,000
$555/sq ft
Dec 17, 2011
Listed
$2,895,000
$644/sq ft
As the MLS and public records start to fill up, we'll list the details here.
Public record
Public record
Zoning
Permits
Beds
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Baths
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Stories
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Lot width
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Lot depth
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Lot size
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Year renovated
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Sq. Ft.
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Year built
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Style
Single Family Residential
County
Contra Costa County
APN
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Parking Spaces
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Basement
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Accessible
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HOA Dues
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Garage
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Features
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Last updated by owner on Apr 12, 2023.
A-40
Exclusive Agricultural District
The purpose of this chapter's regulations is to provide and protect areas for agricultural uses by preventing the establishment of urban and any other incompatible land uses thereon.
Permitted uses
Include but are not limited to:
Religious facility
Hospital / medical center
Medical office
Educational/school
Veterinary clinic
Aug 10, 2022 • Final
Building/residential/p/pool
Construct a new pool and spa with gas and electrical utility stubs.
Construct a new freestanding pavilion and fireplace with gas and electrical connections.
Electrical
Gas
Remodel
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Parking
Parking Information
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Garage Door Opener
Interior
Virtual Tour
Bathroom Information
# of Bathrooms Total: 4
# of Bathrooms Full: 4
Primary Bathroom Included Features: Tub, Tub with Jets, Updated Baths, Double Vanity, Walk-In Closet(s)
Interior Features
Interior Features: Au Pair, Den, Dining Area, Family Room, Formal Dining Room, In-Law Floorplan, Office, Storage, Study, Breakfast Bar, Breakfast Nook, Pantry, Updated Kitchen, Sound System
Appliances: Dishwasher, Gas Range, Microwave, Refrigerator, Self Cleaning Oven, Dryer, Washer, Water Filter System, Gas Water Heater, Solar Hot Water, Water Softener
Laundry Features: 220 Volt Outlet, Dryer, Gas Dryer Hookup, Laundry Room, Washer, Cabinets, Inside, Inside Room, Sink
Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2025. This data may not match public records. Learn more.