There is largely a dearth of objective information on the key issues underlying the effectiveness of facilities space planning and management of office buildings. Little effort has been invested in systematic development of comprehensive coherent criteria, to advance superior knowledge and direct decisions in practice and policy. A discovery of this shortcoming among other gaps, motivated the first author to research further into some influential factors in facilities space planning and management of office buildings, with emphasis on open-plan settings. As the dominant trend in the changing layout of offices is towards a more open-plan space (Knight Frank Hooker, 1995), investigation of open-plan measures in the determination of facilities space management, was considered crucial. The findings of the research have been published in various international journals some of which have been assembled here. The contributions of this research to knowledge and practice have been recognized by the industry, through its winning of the 1998, 1999, and 2000 Excellence Awards for Facility Management Research, awarded by the Facility Management Association of Australia.