4007 Oak Knoll St
Antioch, CA 94509

Listing Courtesy of Juan Carlos Mandrile, Exp Realty of California Inc.

$879,900

Beds: 5
Baths: 3 | 1
Sq. Ft.: 4,270
Type: House
Listing #41110312
1st time on the market since built! Expansive two-story with 4,000+ sq/ft, featuring 5 bedrooms, 3.5 bathrooms, 3-car garage + an optional bedroom conversion as an ADU, office or shop at the heart of the Black Diamond Ranch subdivision bordering Pittsburg. Offering plenty of kitchen cabinetry and no-spare storage space with solid granite counter tops. Dual zone AC and heating systems. Grand primary bedroom with retreat. 2nd floor common area family loft/bonus room. Spacious, concrete-stamped low maintenance backyard with mature, abundant fruit trees and side-gated access for your RV, watercraft and other vehicles. 3rd-car tandem garage converted into a studio/storage room. Located in close proximity to parks, trails, shopping. Fast & easy access to Hwy 4 for a shorter commute and in close proximity to Los Medanos Community College. Enjoy partial Delta views and rolling hills. Great layout for an extended family living or even an at-home business opportunity?! Check your options and make it yours... https://my.matterport.com/show/?m=4QVqRk3CoFm
Property Features
Location Information
County: Contra Costa
Neighborhood: BLACK DIAMOND
Directions: Somersville/James Donlon
Interior Features
Total Rooms: 11
Interior: Family Room, Storage, Pantry, Wet Bar
Full Baths: 3
1/2 Baths: 1
Kitchen Description: Stone Counters, Dishwasher, Double Oven, Eat-in Kitchen, Disposal, Gas Range/Cooktop, Ice Maker Hookup, Kitchen Island, Microwave, Oven Built-in, Pantry, Range/Oven Built-in, Wet Bar
Has Fireplace: Yes
Fireplace Description: Family Room
Heating: Zoned
Cooling: Central Air
Floors: Tile, Carpet
Laundry: Laundry Room, Upper Level
Appliances: Dishwasher, Double Oven, Gas Range, Plumbed For Ice Maker, Microwave, Oven, Range, Gas Water Heater
Exterior Features
Style: Contemporary
Stories: 2
Construction: Siding - Stucco
Foundation: Slab
Electric: No Solar
Security Features: Fire Sprinkler System, Carbon Monoxide Detector(s),
Parking Description: Attached, Off Street, Side Yard Access, Tandem, Boat, Garage Faces Front, On Street, Garage Door Opener, RV Access/Parking, RV Possible
Has Garage: Yes
Garage Spaces: 3
Fencing: Fenced, Wood
Lot Features: Cul-De-Sac, Other, Back Yard, Front Yard
Lot Size in Acres: 0.23
Lot Size in Sq. Ft.: 10,021
Condition: Existing
Building Total Area (Sq. Ft.): 4,270
Outdoor: Back Yard, Front Yard, Side Yard, Entry Gate, Low Main
Has View: Yes
View Description: Delta, Hills
Windows Description: Window Coverings
Additional Information
Property Type: SFR
Building Type: Single Family Residence
Property SubType: Residential
Year Built: 2011
Age: 14
Status: Active


$ per month
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Principal + Interest: $
Monthly Tax: $
Monthly Insurance: $
Term
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Interest Rate
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Down Payment
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List Price:
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Based on a fully amortized fixed rate loan. Ask your agent for the tax rates in your area. Insurance estimate is based on an average cost, your final premium cost will be determined by the type of coverage you select. This program only provides an estimate.
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Bridge-CCAR-Bay East data last updated at December 21, 2025, 9:01 PM PT