Upon entry, you're greeted by a grand foyer featuring an elegant Restoration Hardware chandelier, setting a sophisticated tone. Expansive ceilings guide you into the open-concept living area, perfect for comfort and entertaining. The chef’s kitchen showcases quartzite countertops, Viking appliances, custom Thomasville cabinetry, and Philips Hue lighting. The adjoining family room offers a 60-inch gas fireplace, built-in AV wiring, and Hunter Douglas Power Shades. The primary suite provides luxury with motorized shades, a spa-like ensuite bath, and an adjacent bonus flex room or office. Step outside to your private oasis featuring a solar-heated pool, Bullfrog A8 spa, terraced landscaping, and scenic hill views. Smart features include owned solar panels, Nest thermostats, a security system, and an automatic pet door. Near Lone Tree Golf and Contra Loma Regional Park, enjoy resort-style living. Don't miss the video tour and full upgrade list!
Sold for $950,000
$950,000
5105 Union Mine Dr, Antioch, CA 94531
4beds
3,503sqft
Residential, Single Family Residence
Built in 2001
0.29 Acres Lot
$927,400 Zestimate®
$271/sqft
$4,932 Estimated rent
Home value
$927,400
$835,000 - $1.04M
$4,932/mo
Zestimate® history
Owner options
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$6,028/mo
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Zillow last checked:
Listing updated:
Listed by:
Laura Zamora DRE #01819120 925-813-5794,
Exp Realty Of Northern Ca, Inc
Bought with:
Cheng Qu, DRE #01991767
Sunlight Realty
Source: CCAR,MLS#: 41086522
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 3
Rooms
- Room types: 1 Bedroom, 1 Bath, Main Entry
Kitchen
- Features: Stone Counters, Dishwasher, Disposal, Gas Range/Cooktop, Kitchen Island, Pantry, Range/Oven Built-in, Refrigerator, Updated Kitchen
Heating
- Forced Air, Natural Gas, Fireplace Insert
Cooling
- Ceiling Fan(s), Central Air
Appliances
- Included: Dishwasher, Gas Range, Range, Refrigerator, Gas Water Heater, ENERGY STAR Qualified Appliances, Dryer, Washer
- Laundry: Gas Dryer Hookup
Features
- Pantry, Updated Kitchen, Smart Home, Smart Thermostat
- Flooring: Tile
- Windows: Window Coverings
- Number of fireplaces: 1
- Fireplace features: Living Room, Other, Gas Piped
Interior area
- Total structure area: 3,503
- Total interior livable area: 3,503 sqft
Property
Parking
- Total spaces: 3
- Parking features: Attached, Garage Door Opener
- Attached garage spaces: 3
Features
- Levels: Two
- Stories: 2
- Patio & porch: Terrace
- Exterior features: Dog Run, Garden
- Has private pool: Yes
- Pool features: In Ground, Pool Cover, Solar Heat, Outdoor Pool
- Spa features: Heated
- Fencing: Fenced,Wood
Lot
- Size: 0.29 Acres
- Features: Rectangular Lot, Back Yard, Front Yard, Landscape Back, Landscape Front
Details
- Additional structures: Shed(s)
- Parcel number: 0755900024
- Special conditions: Standard
- Other equipment: Irrigation Equipment
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Residential, Single Family Residence
Materials
- Stucco
- Roof: Tile
Condition
- Existing
- New construction: No
- Year built: 2001
Utilities & green energy
- Electric: Photovoltaics Seller Owned
Green energy
- Energy efficient items: Insulation
Community & HOA
Community
- Subdivision: Black Diamond Cn
HOA
- Has HOA: No
Location
- Region: Antioch
Financial & listing details
- Price per square foot: $271/sqft
- Tax assessed value: $676,531
- Annual tax amount: $7,893
- Date on market: 2/20/2025
Price history
| Date | Event | Price |
|---|---|---|
| 5/28/2025 | Sold | $950,000-4.9%$271/sqft |
Source:  CCAR #41086522 Report a problem | ||
| 5/13/2025 | Pending sale | $999,000$285/sqft |
Source:  bridgeMLS/CCAR/Bay East AOR #41086522 Report a problem | ||
| 5/2/2025 | Price change | $999,000-5.7%$285/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41086522 Report a problem | ||
| 4/16/2025 | Listed for sale | $1,058,880$302/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41086522 Report a problem | ||
| 4/7/2025 | Listing removed | $1,058,880$302/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41086522 Report a problem | ||
| 3/28/2025 | Price change | $1,058,880-1%$302/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41086522 Report a problem | ||
| 3/21/2025 | Price change | $1,070,000-0.5%$305/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41086522 Report a problem | ||
| 2/20/2025 | Listed for sale | $1,075,000+88.1%$307/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41086522 Report a problem | ||
| 2/22/2016 | Sold | $571,500+0.3%$163/sqft |
Source: CCAR #40720459 Report a problem | ||
| 1/11/2016 | Pending sale | $569,900$163/sqft |
Source: Keller Williams Realty Report a problem | ||
| 1/6/2016 | Price change | $569,9000%$163/sqft |
Source: Keller Williams Realty Report a problem | ||
| 12/13/2015 | Price change | $570,000-0.9%$163/sqft |
Source: Keller Williams Realty Report a problem | ||
| 10/27/2015 | Listed for sale | $575,000+26.9%$164/sqft |
Source: Keller Williams East County #40720459 Report a problem | ||
| 3/7/2002 | Sold | $453,000$129/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $7,893 +2.2% | $676,531 +2% |
| 2024 | $7,722 +3.6% | $663,267 +2% |
| 2023 | $7,451 +1.6% | $650,263 +2% |
| 2022 | $7,334 +3% | $637,514 +2% |
| 2021 | $7,121 +0.8% | $625,014 +1% |
| 2020 | $7,065 +1.2% | $618,607 +2% |
| 2019 | $6,979 +3.9% | $606,479 +2% |
| 2018 | $6,719 +2% | $594,588 +2% |
| 2017 | $6,590 +3.3% | $582,930 +2% |
| 2016 | $6,377 +6% | $571,500 +14.2% |
| 2015 | $6,015 +0.9% | $500,500 +6% |
| 2014 | $5,964 | $472,000 +21.8% |
| 2013 | -- | $387,500 +16.7% |
| 2012 | -- | $332,000 -4.5% |
| 2011 | -- | $347,500 -13.1% |
| 2010 | -- | $400,000 +8.7% |
| 2009 | -- | $368,000 -32.9% |
| 2008 | -- | $548,539 +2% |
| 2007 | -- | $537,784 +7.1% |
| 2006 | -- | $502,240 +2% |
| 2005 | -- | $492,393 +2% |
| 2004 | -- | $482,739 +1.9% |
| 2003 | -- | $473,892 |
Find assessor info on the county website
Neighborhood: 94531
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Nearby schools
GreatSchools rating
- 5/10Muir (John) Elementary SchoolGrades: K-5Distance: 1.3 mi
- 3/10Dallas Ranch Middle SchoolGrades: 6-8Distance: 0.8 mi
- 5/10Deer Valley High SchoolGrades: 9-12Distance: 2 mi
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Estimated market value
$927,400
Get a cash offer in 3 minutes
Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$927,400
- California
- Contra Costa County
- Antioch
- 94531
- 5105 Union Mine Dr
Nearby cities
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