In central Indiana most counties only allow one split of land, otherwise it must be a subdivision or what is often called a mini-split. They then take drainage and utility easements from the plat and may times frontage for future road expansion. That must be some rural Md. to not have regulations like that. Those days are over in central Indiana…I'm in
I'm in Mississippi right now, I passed many between Terra haute and Sardis, Mississippi. A farm, ranch or any large tract of land gets chopped up and sold in 3 to 10 acre lots with the intention of each of those having septic and its own well. Driveways to be off existing roads already in use.
When my brother and I sell our family farm in Md, it will be chopped up and lots sold by us.
The only master plan will be the certified survey of each lot.