Just play another game.
no, im not gonna leave blockland
i came up with a strategy to keep the crappy builds away.
1) "Zone" areas (place curtain sized baeplates) and clear places baseplates for builders. the cleared space is the lot size
2) if i dont like it, i will let them finish it. then delete it after they leave.
3) if they come back after i deleted it, they complain, ill say, build it again, but putmore effort
4) if its still crappy, ill delete it on the spot, ask him to try harder. repeat the cycle until he gets it right