A limited way of moving a house with everything inside is by doing an area command and incrementing the coords, assuming you have the priviledges.
I haven't tested it, but .area move wouldn't work because it'd try to put everything at the same spot creating a large stack of crap. If you change the X, Y and/or Z coords (incrementing or decrementing by some value and not setting to a single value), you ideally would be able to slide the house and all of the items within up, down, left and right.
Assuming it works, you probably wouldn't want to move it long distances :-P
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