The per capita energy usage in Saudi Arabia is almost three times higher than the global average. A major contributor is the residential sector which consumes almost 50% of the total national energy consumption every year. Environmental and economic pressures along with the Saudi Vision 2030 reform program advocate for an improvement in energy consumption patterns. For a sustainable residential sector, energy-efficient solutions should be adopted in the design process preferably based on building performance simulation (BPS). This study investigates the existing status and future prospects of BPS in the construction industry of Saudi Arabia. A survey has been carried out with building industry professionals to investigate the existing practices in terms of use of BPS. Energy and environmental savings achievable through application of BPS have been estimated by modelling a typical residential villa as a case study. The results indicate that presently BPS is not being adequately applied by the building industry and a number of barriers exist which need to be addressed. The case study simulation indicates that electricity consumption of a villa based on a BPS-based design process is 51.3% less than the existing typical residential villa.

The buildings and construction sector accounts for the majority of the energy consumption in the Kingdom of Saudi Arabia (KSA). For a sustainable future, energy consumption in the sector should be reduced and existing buildings need to be energy retrofitted. A number of studies present energy retrofitting of residential buildings in KSA; however, there is a lack of studies presenting retrofitting of educational buildings. Thus, the aim of this study is to adopt a BIM-based approach to assess Energy Conservation Measures (ECMs) in a prototypical Government-built educational building in Dammam, KSA. The methodology consists of six prime steps, (1) case study data collection, (2) energy auditing, (3) proposing ECMs, (4) BIM model development, (5) energy assessment, and (6) economic assessment. The energy audit revealed several inefficiencies in the building construction and operation and four ECMs were proposed and simulated. It was found that annual energy consumption can be reduced by 22.7% in the educational building, and the investment for the four ECMs is paid back in 2.7 years only. Therefore, implementing the proposed ECMs is a viable option to energy retrofit such educational buildings in the country, and the presented BIM-based approach can be adopted to efficiently conduct the energy retrofitting process.

Purpose: The purpose of this paper is to present the post-occupancy evaluation (POE) of academic and research laboratory facilities. This is based on the premise that the performance of such facilities is directly connected to the productivity, health and wellbeing of its users. Design/methodology/approach: The paper was carried out in two phases, first, the performance requirements for academic and laboratory facilities were identified through the extant literature. Furthermore, a questionnaire survey was developed to carry out a POE of existing academic and research laboratory facilities in a university campus in Saudi Arabia. The questionnaire was designed using a Likert scale of one to five. Finally, the satisfaction index was computed, and rates of satisfaction with the various performance requirements were determined. Findings: The paper resulted into 74 performance requirements grouped into three categories. The respondents showed general satisfaction with most of the performance requirements. However, dissatisfaction was observed in performance requirements related to technical features and the availability of sustainability features. Such findings suggest the growing importance of such technical and sustainable features in modern-day laboratories. Originality/value: Though few studies have employed POE in assessing the performance of academic facilities, there is still a gap regarding its application to the laboratory facilities. Thus, the originality of this study is evident in its presentation of a set of performance requirements and its further application as a case study.