About 4007 Oak Knoll St
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
Features of 4007 Oak Knoll St
| MLS® # | 41131150 |
|---|---|
| Price | $879,900 |
| Bedrooms | 5 |
| Bathrooms | 4.00 |
| Full Baths | 3 |
| Half Baths | 1 |
| Square Footage | 4,270 |
| Acres | 0.23 |
| Year Built | 2011 |
| Type | Residential |
| Sub-Type | Single Family Residence |
| Style | Contemporary |
| Status | Pending |
Community Information
| Address | 4007 Oak Knoll St |
|---|---|
| Subdivision | BLACK DIAMOND |
| City | Antioch |
| County | Contra Costa |
| State | CA |
| Zip Code | 94509 |
Amenities
| Parking | Attached, Off Street, Side Yard Access, Tandem, Boat, Garage Faces Front, On Street, Garage Door Opener, RV Access/Parking, RV Possible |
|---|---|
| # of Garages | 3 |
| View | Delta, Hills |
| Is Waterfront | No |
| Has Pool | No |
| Pool | None |
Interior
| Interior Features | Family Room, Storage, Pantry, Wet Bar |
|---|---|
| Appliances | Dishwasher, Double Oven, Gas Range, Plumbed For Ice Maker, Microwave, Oven, Range, Gas Water Heater |
| Heating | Zoned |
| Cooling | Central Air |
| Fireplace | No |
| # of Fireplaces | 2 |
| Fireplaces | Family Room |
| # of Stories | 2 |
| Stories | Two Story |
Exterior
| Exterior Features | Back Yard, Front Yard, Side Yard, Entry Gate, Low Maintenance, See Remarks |
|---|---|
| Lot Description | Cul-De-Sac, Other, Back Yard, Front Yard |
| Windows | Window Coverings |
| Construction | Siding - Stucco |
| Foundation | Slab |
Additional Information
| Date Listed | April 16th, 2026 |
|---|---|
| Foreclosure | No |
| Short Sale | No |
| RE / Bank Owned | No |
Listing Details
| Agent | Juan Carlos Mandrile |
|---|---|
| Office | Exp Realty of California Inc. |