He built Vladislav Hall (1497–1500) in Prague Castle, St. Barbara's Church, Kutná Hora, (c. 1482) and other buildings in a late Gothic and early Renaissance style.

The king as well as Bohemian noblemen (the House of Rosenberg being among the richest) searched the surrounding workshops, especially in Danubian countries, for a master builder to realize their projects.

The dates of birth and death are unclear as well as the place of origin or early life activity (Mencl guesses the Inn River, probably Burghausen).

In addition, Prague, Most, Kutná Hora, and Annaberg (the latter two were silver-mining centres at that time) were among the richest cities of Central Europe, and it is likely that only the best architects were invited to work there.

Earlier he was considered an inventor of the tent roof of cathedrals (now typical for churches in Kutná Hora and Louny), but it has been discovered from medieval pictures that their use was more common, and Rejt was probably not an exclusive builder of them.