Review articles • Oorsigartikels Christo Vosloo Prof. Christo Vosloo, Graduate School of Architecture, Faculty of Art, Design & Architecture, Published by the UFS University of Johannesburg, http://journals.ufs.ac.za/index.php/as P.O. Box 524, Auckland © Creative Commons With Attribution (CC-BY) Park, 2006, Johannesburg, How to cite: Vosloo, C. 2020. Early sustainable architecture South Africa. in hanging skyscrapers – A comparison of two financial office buildings. Acta Structilia, 27(1), pp. 144-177. Phone: +27 (0) 11 559 1105, E-mail: <
[email protected]> ORCID: https://orcid. EARLY SUSTAINABLE org/0000-0002-2212-1968 ARCHITECTURE IN HANGING SKYSCRAPERS DOI: http://dx.doi. org/10.18820/24150487/as27i1.6 – A COMPARISON OF TWO ISSN: 1023-0564 FINANCIAL OFFICE BUILDINGS e-ISSN: 2415-0487 Acta Structilia 2020 27(1): 144-177 Peer reviewed and revised March 2020 Published June 2020 *The authors declared no conflict of interest for the article or title ABSTRACT Reuse, or the ability to continue using an item or building beyond the initial function, is a key concept in the literature on sustainability. This implies that a building should be designed in a way that will allow it to be repurposed when changing circumstances require changes in its layout or function; being energy efficient and environmentally sensitive is not enough. The building also needs to be financially viable and the people whose lives are impacted by it should wish to have it retained. As far as flexibility of high-rise or skyscraper buildings is concerned, the structural system and layout are some, but not the only aspects that are of particular importance in this regard.