Silvanus Trevail was a prominent architect in Cornwall, England, during the late 19th and early 20th centuries. His contributions to architecture were significant, particularly in his home county of Cornwall. Here are some of his notable contributions:

1. Public Buildings: Trevail was responsible for designing numerous public buildings, including schools and hotels, which were essential for the development of Cornwall during the industrial era. His designs often combined practicality with aesthetic appeal.

2. Schools: He designed many schools across Cornwall, contributing to the improvement of educational facilities in the region. His work in this area was part of a broader movement to enhance public education through better infrastructure.

3. Hotels: Trevail also designed several hotels, particularly in coastal areas, which helped to boost tourism in Cornwall. His hotel designs often featured modern amenities and elegant styles, attracting visitors to the region.

4. Workhouses and Hospitals: He was involved in designing workhouses and hospitals, reflecting his commitment to improving social welfare infrastructure. These buildings were crucial in providing care and support to the less fortunate.

5. Innovative Designs: Trevail was known for his innovative use of materials and design techniques. He often incorporated local materials and styles, creating buildings that were both functional and harmonious with the surrounding landscape.

Overall, Silvanus Trevail's architectural contributions helped shape the built environment of Cornwall, leaving a lasting legacy that is still appreciated today. His work not only enhanced the aesthetic and functional quality of buildings in the region but also supported the social and economic development of Cornwall during a pivotal period in its history.