Born in Tirana, Perntreou, who is of Greek descent, moved to Athens aged five.

In 2012, he moved to England and had a successful trial with Bristol City, where he joined the under-18 team.

[2] He started the following game against Queen of the South, but made no further appearances for Hibs and was released at the end of the 2014–15 season.

[3] Perntreou was released by Crystal Palace on 1 September 2017, without having made a senior appearance for the club.

[8] For the 2020–21 season he joined Cypriot Second Division club Akritas Chlorakas.