Trevail rose to become Mayor of Truro and, nationally, President of the architects' professional body, the Society of Architects.

He was Cornwall's most famous architect, certainly of the 19th century.
Following the Education Act of 1870 which created Board Schools, Trevail designed around fifty such schools throughout the county.
He also designed hotels including the Headland Hotel, Newquay, Carbis Bay Hotel in Carbis Bay, and restored the church at Temple.
He was said to be a man ahead of his time, a campaigner for sanitation improvements and an entrepreneur.
Trevail rose to become Mayor of Truro and, nationally, President of the architects' professional body, the Society of Architects.
He was Cornwall's most famous architect, certainly of the 19th century. Following the Education Act of 1870 which created Board Schools, Trevail designed around fifty such schools throughout the county. He also designed hotels including the Headland Hotel, Newquay, Carbis Bay Hotel in Carbis Bay, and restored the church at Temple. He was said to be a man ahead of his time, a campaigner for sanitation improvements and an entrepreneur.
Silvanus Trevail