What age to get into London college of fashion?

There's no single "age" to get into London College of Fashion (LCF). They accept students of various ages, from those who have just finished secondary school (around 18) to mature students. The most important factor is meeting the entry requirements for the specific course you're applying for, which may include things like qualifications, portfolio, and experience. So there's no minimum or maximum age, just meeting the criteria for the chosen program.