This Karl Langer collection contains architectural drawings, financial records, correspondence, biographical and personal notes, articles, speeches, job photos, subject files, diaries, journal and newspaper cuttings relating to the works, life and interests of Karl Langer. Buildings where Karl Langer was the architect are represented in this collection. Drawings and files include those realting to: St. Peters Lutheran College, Brisbane; Ipswich Girls Grammar School; Ipswich Boys Grammar School; Lennons Hotel, Brisbane and Lennons Hotel, Broadbeach. Karl Langer taught at the University of Queensland and Queensland University of Technology and there are related documents to this time. Plans and photographs of the Langer House, designed by Karl Langer are included in the collection. The Langer House was added to the Queensland Heritage Register on 21 October 1992.

Cliffside Apartments, also know as Cliffside Flats, is a heritage-listed apartment block located at Kangaroo Point, Brisbane. In 1936, goldminer and New Guinea expatriate Doris Regina Booth (nee Wilde) commissioned Cliffside Flats in South Brisbane, designed by local architect Ronald Martin Wilson. Her sister, Selma Dore, oversaw the construction and photographed the site at various stages throughout the project. The apartment block was added to the Queensland Heritage Register on 27 February 2004. This file comprises a DVD of high-resolution scans of 23 photographs, with proof sheet.