i think that should work, actually! caramelcookie said it had to be two tiles away from the house, but i'm pretty sure it only needs to be one, because it's a rock, not a pwp or a building. when i plan buildings and pwps, i always make sure i have a 5x5 section that doesn't have anything in it, rather than the actual 3x3 house size. a pwp would have to be 2 spaces away from the house, but i believe the rock can be one
hope that helped!!