Dating back to the early 1900s, Richmond Castle was once the mansion of a wealthy businessman named Mudaliyar Don Arthur De Silva Wijesinghe Siriwardhane. Mudaliyar wanted his mansion to stand out immediately, thus making him adopt an Edwardian design. Aside from the main mansion complex, visitors to the castle could also find a sprawling garden with a gorgeous view of Kalu Ganga. It was Mudaliyar's wish on his deathbed, that his mansion be turned into a children's home, which is the primary purpose of Richmond Castle to date.