Johann Nepomuk Fuchs was born in Neiss, Silesia. The papers from his estate indicate that he survived the 1755 Lisbon earthquake while he was traveling for study. Fuchs arrived in Maribor in the 1750s as an employee of the architect Josef Hoffer (1700–1764). After Hoffer's death, Fuchs married his widow Barbara in 1762, took over Hoffer's prominent workshop, and soon became prosperous. Fuchs was accepted into the architect's guild in 1762, became a citizen of Maribor in 1763, and became the head of the guild in 1764. Fuchs is known for his oval architectural designs executed in Maribor and Pregrada. His architectural style is essentially late Baroque, although Classicist influences can be seen in his later works. Fuchs died in Maribor on 7 May 1804.