The centre has eight isolation bays and four large recovery bays for animals, but hopes to triple this capacity at the Floral Hall.
Ms Jackson said the new home had more space and an aviary, giving the group an opportunity to extend its range of species and rehabilitate more and larger animals, including deer.
Under the plans, parts of the new venue will be open to visitors, including a tropical aviary and glass house, following restoration work.
“We’re cleaning down Floral Hall, because it’s not been in use for about three or four years,” she said.