The oldest building in Mustjõgi was probably the tavern building, which was located along the Paldiski road dating back to the Middle Ages. The tavern site and farm was already called Swartle Bäck in 1585. The same name was found on a 1696 map. This work from 1836 provides a nice artist's impression of the tavern.
Paldiski maantee. Mustjõe kõrts. Haabersti mõis. Tallinn 1836.