Zoning ordinances could prevent this. Again, it should be easy to determine from the broker. Likewise, it must be feasible to build either 20 single family houses or a multiple-dwelling housing unit. Subdivision regulations may impact this. Jobs are readily available within one-hour commuting time.
Percolation tests are satisfactory for septic-tank construction.
This is a usual condition on a land sale just as termite inspection is in purchase of a house in town. The amount of land required depends on the percolation as does the cost of installing the septic-tank drain lines. Access by two-wheel drive vehicles is available. Access to electricity and telephone can be arranged. This may take some probing although it should be well known.