The 49-year-old and his fiance Angelina Jolie's children - Maddox, 11, Pax, nine, Zahara, eight, Shiloh, six, and four-year-old twins Knox and Vivienne - are all animal lovers so the actor created a private menagerie at the family's Chateau Miraval estate in Provence, France.
Creatures in the zoo include goats, llamas, geese, ducks, emus and lop-eared rabbits, although Pitt's brood wanted him to get more exotic animals like lions, reported Sun Online.
"Maddox and Pax are safari mad and they wanted Brad to buy them lions and tigers, even crocodiles. Brad decided to go with a mini farm/petting zoo theme that the twins, Knox and Vivienne, can enjoy looking after as well.
The couple, who have started planning their wedding, which is believed to be taking place at the end of May at Chateau Miraval, want animals to play a big part in their big day.
The duo plan to have leaping Shetland ponies greet their guests as they arrive and will have topiary elephants cut into the grounds, with each one representing a member of the family.