...Mohamed Abdel Hamid; Tarek Attia; Nasser Saleh; Mohamed Magdy Purpose This study evaluates the cost implications of the Green Pyramid Rating System (GPRS) in Egypt. Although GPRS promotes sustainable construction, its adoption remains limited due to unclear financial impact and low stakeholder...

... in the building envelope such as providing shades/overhangs on the windows, reducing infiltration and increasing insulation of the exterior wall did not show promising results for savings on energy cost, other improvements such as use of highly efficient lamps, tank-less water heater system and occupancy sensors...