The 18-year-old has penned a 12-month deal.
Born in the Democratic Republic of Congo, Lubala grew up in Leicester.
The attacking midfielder joined Blues' Academy in 2014.
So far during the 2015/16 campaign he has played 24 games for the Club's Under-18s side and scored five goals and has also appeared four times for the Under-21s, coming off the substitutes' bench.
Read more at http://www.bcfc.com/news/article/beryly-lubala-birmingham-city-3059604.aspx#8o7xqPAIREH73Ch1.03
Updated 09:37 - 20 Apr 2016 by richard thompson