The Buesa Arena is the venue with the largest capacity in the ACB league, it has hosted 5 editions of the Copa del Rey basketball and a final round of the Eurocup in 2010, and on 9th May, 2018 it broke the historical record attendance for a match in the Endesa league with a turnout of 15,512 spectators.

The current Buesa Arena venue, now a multipurpose venue for major sporting and cultural events, was conceived at the time as a livestock square and was named the Pabellón Araba, with a capacity for 5,000 spectators. Over the years and the various stages of economic-industrial transformation experienced by the city of Vitoria-Gasteiz, in February of the year 2000 the venue changed its name to become the Fernando Buesa Arena as a tribute to the politician that led the change and promoted the Project. In the summer of 2007, some works were undertaken to increase to 9,700 seats, and its last extension took place in 2012, until reaching its current capacity of 15,716 spectators.

With the arrival of the Final Four to Vitoria-Gasteiz, the Pabellón Buesa Arena will enter into the history of hosts of the competition, in which can be found venues such as the Štark Arena in Belgrade, host of the latest edition in 2018, the Sinan Erdem Dome in Istanbul (2017), the Mercedes-Benz Arena in Berlin in 2016, or the O2 Arena in London in 2013.

In addition, it will be the third Spanish state to host the event following the finals played in Madrid in 2015 and 2008, and in Barcelona in 2012 and 2003.