Identification of The Causes of Non-Value-Adding Activities during the Design Stage

Xolani Nghona, Cape Peninsula University of Technology
Jonathan Crowe, Cape Peninsula University of Technology
Ruben Ndihokubwayo, Cape Peninsula University of Technology

Abstract

Purpose – This study endeavors to identify the causes of non value-adding activities during the construction design process in order to minimise them. Problem statement – A lack of identification and categorization of major causes and consequences of the non-value adding activities gives rise to unnecessary hidden costs during the design process of the construction projects. Methodological approach - A literature review focusing on the identification of the existence of non-value adding during the design phase was conducted. Close-ended questionnaires were distributed and interviews were conducted to purposive sampled registered architects, structural designers, project managers, contractors and quantity surveyors in the Central Business District of the City of Cape Town. Findings – The study reports that the construction design stage fails to identify and minimize the causes which give rise to activities that do not add value to the project. It was revealed that an inadequate design brief resulted in poor design drawings; poor design management resulted in changes in the design schedule and separated management of design activities influenced the occurrence of ineffective information transfer, hence the existence of non-value adding activities. Conclusion – By paying attention to the causes which give rise to non-value adding activities during the design stage waste reduction will be enhanced.