I am "parked" in TN at my son's mini-farm for a few years. No city zoning problems.
Ran underground PEX water from his home.
Parked close to one of his out building that had electricity so that was not a problem.
For black/gray water a 55 gallon drum buried with some "field lines" work as a septic tank. If you flush with lots of water and use cheep single ply toilet paper not problem. A RV does not use as much water as a "house" so for 3 years no septic problems.
The only problems I have is (1) protecting (turning off) the water in cold weather and using the on-board pump. (2) poor insulation high electrical bill in summer and high propane bill in winter -- I also heat with a small electrical heaters.