It was renamed in April 2019 when Quicken Loans rebranded to Rocket Mortgage, as part of the facility's renovation and expansion.

It is a frequent site for concerts and other athletic events, such as the men's and women's basketball tournaments of the Mid-American Conference (MAC), hosting since 2000 and 2001, respectively.

The market site was acquired in 1985 and cleared in 1987 in a continued push for new downtown sports facilities by city and business leaders.

In 1990, voters approved a sin tax on alcohol and tobacco products in Cuyahoga County to fund the Gateway Sports and Entertainment Complex, which includes the FieldHouse and adjacent Progressive Field.

The Cavaliers played their first regular-season game in the arena a few weeks later, a loss to the Houston Rockets on November 8, 1994.

Gilbert purchased the then-inactive Utah Grizzlies franchise of the American Hockey League on May 16, 2006, and announced that it would move to Quicken Loans Arena to replace the departed Cleveland Barons.

In December 2016, the Cavaliers announced plans for renovations to the arena that included an increase in the square footage of the concourses and open areas, along with upgrades throughout the building.

[15] The plan, which relied partly on tax money for funding, faced opposition from activist groups including the Cuyahoga County Progressive Caucus and the Greater Cleveland Congregations (GCC).

[18] However, in August 2017, after Cuyahoga County made a non-binding commitment to build two mental health crisis centers, the GCC withdrew its petitions.

[28] In March 2017, in partnership with the non-profit organization KultureCity, the Cavaliers officially introduced the availability of accommodations during all events for guests with hypersensitivity needs, such as attendees with autism spectrum disorders.

[29][30] As the home of the Cavaliers and Monsters, Rocket Mortgage FieldHouse has hosted a number of notable events for each team, including playoff and championship games.

From 1997 to 2003, the Cleveland Rockers, one of the eight charter members of the Women's National Basketball Association (WNBA), played at Rocket Mortgage FieldHouse.

The team folded after the 2003 WNBA season because the Gunds, who still owned the Cavs at that point, no longer wished to operate the Rockers franchise, and a new ownership group could not be obtained.

The Cleveland Crush of the Lingerie Football League played at Rocket Mortgage FieldHouse for their 2011–12 and 2012–13 seasons before moving to Toledo, Ohio, in late 2013.

Paul won the eight round bout via split decision in front of a nearly sold-out Rocket Mortgage Fieldhouse.

[38] Rocket Mortgage FieldHouse was selected in July 2014 as the host site for the 2016 Republican National Convention.

The arena hosted the first Republican presidential debate of the 2016 election, aired by Fox News Channel, on August 6, 2015.

[39] Records obtained by the Center for Public Integrity show that Comcast, Microsoft, the American Petroleum Institute, Chevron, Koch Companies Public Sector, PhRMA, and other trade and lobby groups, "funded a limited liability company called 'Friends of the House 2016 LLC' to pay for "the design and outfitting of an exclusive office, lounge and gathering space, called the 'cloakroom', for Republican lawmakers" on the Cleveland Cavaliers practice court Quicken Loans Arena.