Construction started in 1626 and the Holy Hut was blessed on 25 March 1631. The architect was the Italian Giovanni Orsi, and the project was financed by Kateřina Benigna, a noblewoman of the Lobkowicz family. Fifty years later the place of pilgrimage was surrounded by cloisters, to which an upper storey was added after 1740 by Kilián Ignác Dientzenhofer. The baroque facade was designed by the architects Christoph Dientzenhofer and Kilian Ignaz Dientzenhofer, and added at the beginning of the 18th century.
Today the building also houses a large collection of liturgical tools, mainly monstrances. Exhibitions are occasionally held on the first floor of the cloister.
Neighbouring Loreta Square (Czech: Loretánské náměstí) is named after Loreta.
- "Prague Castle - Loreta". prague-castle.org. Retrieved 15 February 2015.