OK, I'm a
little confused about how your wording this, but i'll try & word this as best as I can:
1: load the game where you want to move your house
2: Ok, your playing your Game....click on the three little ...'s and go to Edit town
3: You've got 4 options: Select, Move Lot, Build/Buy, & Bulldozer. Which One do we want? Obviously Move Lot!

4: Find The House You Want to move
5: Place it in a new Lot Slot
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If I didn't answer your question right, sorry, I'm not too sure what you mean...