In April 2015, Eagle Hills signed a joint venture agreement with representatives from the Government of the Republic of Serbia for the Belgrade Waterfront,[11] a new city hub along the Sava River. Construction work began on Belgrade Waterfront Residences, the first residential building with the development, in October 2015. The twin-tower complex has an indoor swimming pool, a yoga and lounge area, a modern health club, a children’s play area and pool, roof gardens and a podium deck.[citation needed]