10 acres is about 40,000sqm. A runway for private jets would be something like 1500m by 25m (~5000 ft by 75 ft). That's 37,500sqm. So you can build it, if your land happens to be runway-shaped.

Yes, it is technically possible to build a private runway on 10 acres of land, but it requires a very specific, linear property configuration. A standard 10-acre square (roughly 660 by 660 feet) is too short for most aircraft; however, if the 10 acres are arranged as a long, narrow strip (for example, 150 feet wide and 2,900 feet long), it is more than enough space for a small, single-engine plane. Most "STOL" (Short Takeoff and Landing) aircraft can safely operate on a grass strip as short as 1,000 to 1,500 feet. In theory, you could build a functional runway on as little as 1.3 acres (the size of a football field) if it were stretched out to be 20 feet wide and 2,800 feet long. However, 10 acres is a more practical "safety minimum" because it allows for essential buffer zones, a small hangar, and clearance from obstacles like trees or power lines. Before building, you must navigate a complex web of local zoning laws, environmental permits, and FAA "Notice of Construction" requirements to ensure the airstrip is legal and safe.