I am building new house and will have Propane but the materials are similar. From the tank high pressure regulator a riser connects to the poly pipe. The poly pipe cannot have any sunlight exposure so the risers are 48" and 72" long and the pipe buried. The poly pipe will run from the tank riser about 75' to a tee used for poly pipe. One leg of the tee goes to the house where another riser will connect to a low pressure regulator. From there black iron pipe goes into the house.
The other leg of the tee goes another 75' to a separate building through another riser and another low pressure regulator. I had thought about running the ply to the shop but that will have to wait another budget.