The Las Vegas Convention and Visitors Authority (LVCVA) board approved the financing and plan for the $1.4 billion expansion and renovation of the Las Vegas Convention Center.

In a 2016 special session of the Nevada Legislature supplemental funding was approved for the Convention Center’s improvements, but until Tuesday there wasn’t final approval from the LVCVA.

The first phase of the expansion, which has already been completed, included the purchase and demolition of the Riviera and construction of a parking lot with exhibition facilities.

The second phase is the construction of a 1.4-million-square-foot expansion-including 600,000 square feet of exhibit space-that will cost $860 million. Construction of that phase should begin in January.

The third phase, the $540 million renovation of the existing convention space, will begin in 2020, which is also the midway point for construction of the second phase. The entire project is expected to be completed by 2023.