The collection consists of Imre Halasz’s archive of papers, notes, clippings, scrapbooks, photographs, slides, artwork, and journals. The collection also contains nearly 6,000 drawings, ranging from preliminary sketches through construction drawings, representing many of the projects of Imre and Anthony Halasz, Inc. as well as his independent work. See the Imre Halasz Collection finding aid  for a detailed listing.

The processing and digitization of the collection in 2010 by Theresa Smith was generously funded by the Imre Halasz Trust, established in 2007 to offer financial support for working architects to advance their professional interests through scholarly research and related projects. Additional cataloguing and digitization was completed in 2015 by Jonathan Duval.