We are relieved. Mrs. Mungo has never lived in a house. She is happy. I have drawn an elegant sketch of the house and backyard on a pair of Post-It notes - click to see a larger image with more details (as if you didn't know to do that already):

Monty has been told he will now have some grass and a backyard, where we will build his doghouse. He is going to the vet for a surgeon's consult tomorrow afternoon, so he is somewhat distracted and can't appreciate the good news yet.
Mungo says bah.