Bayley's financial mismanagement, or perhaps embezzlement, led to Trigg eventually facing bankruptcy court.
Facing past creditors and the humiliation of insolvency, Trigg and his family left the state, eventually settling in Henley Beach, South Australia.
With the advent of prosperity, people who were previously content with very modest edifices grew more particular, and demanded large houses and immense stores.
Another structure designed by him is the office of the Commercial Union Insurance Company in St Georges Terrace, considered "the handsomest of its kind in the colony" in 1897 by historian Warren Bert Kimberly.
Trigg's practice was not confined to Perth; he designed the Freemasons Hotel in Geraldton, one of the chief adornments of that port at the time.
During the Western Australian gold rushes of the 1890s, Trigg made a multitude of Federation-era designs, such as the Rechabite Coffee Palace, the Goldfields Club Hotel, premises for Phineas Seeligson, and workshops for furniture dealer William Zimpel.