The 19-year-old academy graduate has committed to the club for an undisclosed length of time, marking a significant step in his career.
Charlie joined the Brighton academy at the age of eight and has made rapid progress through the ranks.
Under-21s coach Shannon Ruth praised Charlie's achievements, saying, "We're really proud of what Charlie has achieved since he joined us."
Shannon also highlighted Charlie's success in the under-21s last season, stating that he "deserved to make the step-up to first-team squad involvement."
Charlie's decision to sign a new contract indicates his enthusiasm for the club's environment and his desire to continue growing as a player.