Abstract

There is an increased effort by governments and non-government agencies across the globe on the need to reduce energy consumption through energy-efficient buildings that make use of less energy. This study assessed energy efficiency strategies in general-purpose buildings in Lagos State, Nigeria. A qualitative research method and secondary data sources were adopted as the research design and source of data respectively. Likewise, content analysis was adopted to analyze the collected information. The findings revealed that energy efficiency strategies can be viewed holistically from the pre-building phase and building phase. During the pre-construction phase, energy-efficient design solutions include solar systems, energy-efficient building materials, building envelope, optimal site selection, and utilization of renewable energy resources (passive heating). On the other hand, energy efficiency design strategies for building phases are; conventional frame building systems, tunnel-form concrete masonry systems, precast construction systems, enhancing multiuse and using energy-efficient bulbs, and energy-efficient appliances. From the findings, the study concluded that when the identified strategies are applied in the focused building, there would be energy efficiency and improvement in human comfort.