The building which housed the institute is a striking example of Brutalist architecture,[1] and was listed on the National Register of Historic Places in 2024.

The ITC, through its research, collections, exhibits and programs, serves as the forum for the understanding and appreciation of Texas and Texans.

The library on the third floor contained manuscripts, rare books, personal papers, over 3 million historical photos and over 700 oral histories.

[4] Affiliate status grants the institute access to the Smithsonian's artifacts, education, and performing arts programs, expert speakers, teacher workshops, and resources to complement and broaden exhibitions.

Additionally it was announced the building housing the ITC has been tentatively scheduled for demolition and the museum would reopen in early 2025 at a temporary location within the Frost Bank Tower's first floor.