By Daniel Chavkin The Nets forward had owned the house for three years. View the original article to see embedded media. As one Philadelphia star officially moves on, another is officially moving in. According to ESPN’s Joe DeMartino, Nets forward Ben Simmons sold his house in Moorestown, N.J., just 40 minutes out of Philadelphia, to Phillies outfielder Nick Castellanos. Simmons originally bought the house for $2.375 million and is selling it to Castellanos for almost double at $4.55 million. Castellanos’s new mansion has six bedrooms and 6.5 bathrooms on 10,500 square feet. Additionally, Simm…