Purpose There is a significant consideration for the architecture, engineering and construction (AEC) sector to reduce its impact on the environment. In this regard, design for greater efficiency (DfGE) has emerged as a comprehensive design philosophy. However, as to whether design professionals are aware of this methodology, that is something that is yet to be determined. Therefore, this study investigates design professionals' awareness of DfGE practices and determines the factors that shape their understanding of the concept. Design/methodology/approach A questionnaire survey was used to solicit the views of 238 design professionals on key DfGE practices. Data were analyzed through descriptive and inferential statistical analyses. Findings The study found that 73.1% of design professionals were aware of the DfGE principles. The findings further revealed the existence of critical knowledge stratification. Professionals demonstrated higher awareness of building materials, circular economy and water systems practices. However, they possess low awareness of technical domains like building physics. The one-way analysis of variance showed significant variations by experience levels for technical domains. Additionally, the study found that minimal variations existed across professional disciplines. The patterns show that professionals are more aware of procurement-oriented aspects than technical principles. Originality/value It uniquely identifies strengths and gaps in professionals' understanding of DfGE and reveals how experiential and systemic factors influence this awareness. By providing evidence-based guidance for policymakers, educators and professional bodies, the study supports the formulation of targeted training and policy interventions to enhance design efficiency practices and accelerate the integration of the principles into Ghana's built environment.
Aklashie et al. (Thu,) studied this question.