$4,500,000
SOLD FEB 5, 2026

3600 Byer Rd Byron, CA 94514

East Contra Costa Neighborhood
5 Beds
8 Baths
10,000 Sq Ft
1,235,797 Sq Ft Lot

Recently Sold

$450 Per Sq Ft

22% Below List Price

283 Days on Market

Highlights

  • In Ground Pool
  • RV or Boat Parking
  • Custom Home
  • Discovery Bay Elementary School Rated A-
  • Solar Power System
  • 1,235,797 Sq Ft lot

About This Home

As of February 2026

ATTNENTION All CAR ENTHUSIASTS! Welcome to Bella Torre. This architectural masterpiece is one of Northern California’s Most iconic estates boasting luxurious unparalleled amenities. Strategically located between San Francisco, Sacramento, & our beautiful Napa Valley w/private airport just minutes away. The exterior showcases French stucco, while the interior boasts Venetian plaster, extensive Brazilian handcrafted mahogany, imported Brazilian doors, & exquisite Spanish & Italian stone throughout. The magnificent single story has approx. 10,000 square feet of living space including 5 bedrooms, 6 full & 2 half bathrooms, & approx 23,000 total sf under roof, w/ room for 35+ cars indoors. w/ expansive indoor & outdoor living spaces, handcrafted custom stonework throughout, 20 foot ceilings, a state-of-the-art kitchen equipped for gourmet cooking, magnificent formal dining room, private movie theater with designer seating, fiber optic ceilings and Dolby THX sound system for an astounding cinematic experience, temperature controlled 1,500 bottle wine cellar, 6 fireplaces, 1 bed/1 bath detached guesthouse, racquetball court, gym, custom saltwater infinity pool & spa...so much more! Please see virtual tour & property website for full description about this one of a kind home.

Last Agent to Sell the Property

Noelle Charles-Merrill

License #01833825 Listed on: 03/18/2025

Last Buyer's Agent

Pal Singh

License #01030954

Home Details

Home Type

  • Single Family

Year Built

  • Built in 2007

Lot Details

  • 28.37 Acre Lot
  • Back Yard

Parking

  • 35 Car Attached Garage
  • Garage Door Opener
  • RV or Boat Parking

Home Design

  • Custom Home
  • Tile Roof
  • Plaster

Interior Spaces

  • 1-Story Property
  • Family Room with Fireplace
  • 6 Fireplaces
  • Wood Flooring
  • Laundry in Garage

Kitchen

  • Breakfast Bar
  • Gas Range
  • Microwave
  • Plumbed For Ice Maker
  • Dishwasher

Bedrooms and Bathrooms

  • 5 Bedrooms
  • Fireplace in Primary Bedroom

Eco-Friendly Details

  • Solar Power System
  • Solar owned by a third party

Utilities

  • Zoned Heating and Cooling System
  • Well

Additional Features

  • In Ground Pool
  • Agricultural

Community Details

  • No Home Owners Association
  • Byron Subdivision

Listing and Financial Details

  • Assessor Parcel Number 0020400644

Home Details

Home Type

Single Family

Year Built

Built in 2007

Lot Details

28.37 Acres

Parking

35

Listing Details

  • Stories: 1
  • Year Built: 2007
  • Property Sub Type: Detached
  • Prop. Type: Residential
  • Subdivision Name: Byron
  • Directions: j4 or bixler off hwy4
  • Architectural Style: Custom
  • Garage Yn: Yes
  • Unit Levels: One Story
  • New Construction: No
  • Power Production Type: Photovoltaics
  • Special Features: VirtualTour

Interior Features

  • Flooring: Hardwood
  • Spa Features: Heated
  • Appliances: Dishwasher, Gas Range, Plumbed For Ice Maker, Microwave, Refrigerator
  • Other Equipment: Other, See Remarks
  • Full Bathrooms: 6
  • Total Bedrooms: 5
  • Fireplace Features: Family Room, Master Bedroom, Other, See Remarks
  • Fireplaces: 6
  • Fireplace: Yes
  • Window Features: Window Coverings
  • Room Kitchen Features: Breakfast Bar, Stone Counters, Dishwasher, Eat-in Kitchen, Gas Range/Cooktop, Ice Maker Hookup, Kitchen Island, Microwave, Pantry, Refrigerator

Exterior Features

  • Roof: Tile
  • Lot Features: 2 Houses / 1 Lot, Agricultural, Level, Premium Lot, Other, Back Yard, Landscaped
  • Pool Features: In Ground
  • Pool Private: Yes
  • Construction Type: Plaster
  • Property Condition: Existing

Garage/Parking

  • Garage Spaces: 35
  • Parking Features: Attached, RV Garage Attached, Garage Door Opener

Utilities

  • Heating: Zoned
  • Cooling: Ceiling Fan(s), Central Air
  • Laundry Features: In Garage, Laundry Room
  • Cooling Y N: Yes
  • Heating Yn: Yes
  • Electric: Photovoltaics Third-Party Owned
  • Water Source: Well, Other (Irrigation)

Condo/Co-op/Association

  • Association: No

Lot Info

  • Lot Size Sq Ft: 1235797
  • Parcel Number: 0020400644

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Mar 18, 2025
Closed on
Jan 30, 2026
Sold by
Gardner Kenneth
Bought by
Ramalingam Radhakrishnan and Ganasprakasam Uthiramadaswamy
Seller's Agent
Noelle Charles-Merrill
Buyer's Agent
Pal Singh
List Price
$5,750,000
Sold Price
$4,500,000
Premium/Discount to List
-$1,250,000
-21.74%
Views
106

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
77.04%
Original Mortgage
$2,250,000
Outstanding Balance
$2,250,000
Interest Rate
6.18%
Mortgage Type
New Conventional
Estimated Equity
$2,569,271

Purchase Details

Closed on
Apr 8, 2022
Sold by
Gardner and Marissa
Bought by
Gardner Kenneth

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$2,750,155
Interest Rate
3.85%
Mortgage Type
New Conventional

Purchase Details

Closed on
Aug 6, 2018
Sold by
Polimeno Family Lp
Bought by
Gardner Ken

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$395,000
Interest Rate
4.6%
Mortgage Type
New Conventional

Purchase Details

Closed on
Aug 9, 2013
Sold by
Gardner Ken
Bought by
Polimeno Family Limited Partnership

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$1,250,000
Interest Rate
3.92%
Mortgage Type
Seller Take Back

Purchase Details

Closed on
Jul 29, 2013
Sold by
Polimeno Family Limited Partnership
Bought by
Gardner Ken

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$1,250,000
Interest Rate
3.92%
Mortgage Type
Seller Take Back

Purchase Details

Closed on
Apr 24, 2009
Sold by
Polimeno John
Bought by
Polimeno Family Limited Partnership

Purchase Details

Closed on
Apr 1, 2009
Sold by
Polimeno John and Polimeno Kristie
Bought by
Polimeno Kristie
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
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Average Value
Not Available
List Price
Sold Price
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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

Date Type Sale Price Title Company
Grant Deed $4,500,000 Chicago Title
Gift Deed -- First American Title
Quit Claim Deed $395,000 None Available
Transaction History Record -- None Available
Grant Deed $1,300,000 Fidelity National Title Co
Quit Claim Deed -- None Available
Interfamily Deed Transfer -- None Available
Interfamily Deed Transfer -- None Available
Interfamily Deed Transfer -- None Available
Interfamily Deed Transfer -- None Available
Interfamily Deed Transfer -- None Available
Interfamily Deed Transfer -- None Available
Interfamily Deed Transfer -- None Available
Interfamily Deed Transfer -- None Available
Gift Deed -- None Available
Source: Public Records

Mortgage History

Date Status Loan Amount Loan Type
Open $2,250,000 New Conventional
Previous Owner $2,750,155 New Conventional
Previous Owner $395,000 New Conventional
Previous Owner $1,250,000 Seller Take Back
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
02/05/2026 02/05/26 Sold $4,500,000 -21.7% $450 / Sq Ft
12/26/2025 12/26/25 Pending -- -- --
12/03/2025 12/03/25 Off Market $5,750,000 -- --
12/01/2025 12/01/25 For Sale $5,750,000 0.0% $575 / Sq Ft
07/23/2025 07/23/25 Off Market $5,750,000 -- --
03/18/2025 03/18/25 For Sale $6,338,880 -- $634 / Sq Ft
Source: bridgeMLS

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $25,078 $2,281,367 $625,184 $1,656,183
2024 $23,901 $2,236,635 $612,926 $1,623,709
2023 $23,901 $2,192,780 $600,908 $1,591,872
2022 $23,521 $2,149,785 $589,126 $1,560,659
2021 $22,891 $2,107,633 $577,575 $1,530,058
2019 $22,223 $2,000,024 $560,445 $1,439,579
2018 $21,428 $1,960,808 $549,456 $1,411,352
2017 $21,113 $1,922,362 $538,683 $1,383,679
2016 $20,294 $1,884,670 $528,121 $1,356,549
2015 -- $1,856,362 $520,189 $1,336,173
2014 $19,880 $1,820,000 $510,000 $1,310,000
Source: Public Records

Agents Affiliated with this Home

  • P

    Buyer's Agent in 2026

    Pal Singh

See All Agents

Map

Source: bridgeMLS

MLS Number: 41089832

bridgeMLS

APN: 002-040-064-4

California Contra Costa County Byron 94514 East Contra Costa

3600 Byer Rd, Byron, CA

Sold

Detached

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

bridgeMLS Bay East 2026. CCAR 2026. bridgeMLS 2026. Information Deemed Reliable But Not Guaranteed. This information is being provided by the Bay East MLS, or CCAR MLS, or bridgeMLS. The listings presented here may or may not be listed by the Broker/Agent operating this website. This information is intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

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