 Now the developer, Prime LLC, says they're not on board with the project. The King Street Center Lemonade Stand, a Church Street Marketplace institution, is getting a fresh start. The nonprofit teaches work and life skills to middle schoolers. For 23 years, the stand stood on Church Street, but starting Tuesday, it's based outside the Echo Lahey Center. King Street officials say the old location required a tedious push uphill for the cart, and that at Echo, there are more families.