Damian definitely buys an isolated farm, not because he wants to be a farmer but because of the ever increasing number of animals he ends up adopting. They also get bigger over time.
Damian has Cows, sheep, horses, goats, and Jerry the Turkey.
Jon buys him chickens for eggs because, at this point, he may as well contribute to the problem if he can't solve it.
Talia gifts Damian Tigers and Panthers that can no longer be released to the wild.
Dick rescues three elephants from an animal trafficking ring and, after realising how damaged their feet are, brings them to the farm where they will be safe. They remind him so much of his childhood.
Tim arrives with a phoenix, and he does not explain where he got it but does start designing a new costume.
Jason visits with a bear one day, he names it Darcy.
Cass loves the deer herd that have taken up residence in the forest.
Stephanie finds three peacocks in a Gotham warehouse so she knows exactly where to bring them.
Signal busts a man using large snakes to smuggle drugs, so they have a reptile house now.
The farm has its own bat cave, complete with hundreds of bats.
There's an armada of cats, birds, and dogs.
Batman starts losing his mind after the rabbits.
Damian collects so many mythical creatures that Constantine starts to drop off any he finds that need a good home. (He is an enabler, and Bruce hates him after that thing with the unicorn. Bruce is more upset with himself because he let Damian keep it)
Goliath and Wiggles keep them in line even if that involves adventures to Hell and Dream.
Jon brings over extraterrestrial animals every once in a while as well. Clark helps, but no one can tell Bruce.
Aquaman installs an insane fish pond that hold very happy fish after Batman annoys him.
Diana somehow gave Damian a cerberus puppy for his birthday. (Bruce tries so hard to stop this but fails spectacularly.)
Damian keeps large portions of the land wild to encourage biodiversity and insect populations. He holds firefly parties in the summer with the Teen Titans.
Swamp thing and Poison Ivy love the place. Harley gives Damian the cheetah cub (it only has three legs!) she found after beating up a sleazy club owner.
The Wayne Farm is out of control and every superheroes' favourite place. They start to try to convince Batman to hold meetings there instead of the Watchtower.
Bruce is so glad to see his children so happy, but for the love of God, put the dinosaur back where you found it! Please! (He is a weak man in the face of puppy dog eyes)
It only gets worse when Damian gets older, and it is very clear that his adoption problem extends to children.
