Mr Trott, together with two businessmen both living in Whanganui, one who also moved here from Auckland, are setting up a commercial business hub on the top floor of the Waimarie Building next month.
"I have an IT man from Auckland coming in to set me up completely with the best technology. I will be running the NZ Opera Foundation Trust and the NZ Opera School from there.
"The other two men will be operating their own businesses.
"It's a very good arrangement in a very nice space."
The NZ Opera School's Wanganui Opera Week is held annually at Wanganui Collegiate School, and is now in its 22nd year. Mr Trott said it had more than made its mark globally, with New Zealand opera singers gaining the attention of overseas companies.
For example Sol3 Mio - Samoan brothers Pene and Amitai Pati and cousin Moses Mckay - are opera school graduates. The Pati brothers are singing with the San Francisco Opera Company, which boasts one of the world's best singing tutors, Cesar Ulloa.
"Cesar has agreed to teach here at the opera school in January, which is just tremendous."
Mr Trott said: "Business will be here in a town that is charming and friendly, and I'm looking forward to it.
"No more Auckland, no more big city for me."