This paper explores the design, implementation, and efficiency of building services specifically HVAC (Heating,Ventilation, and Air Conditioning), electrical, water systems and roof solar system with case study examples. Withthe growing demand for energy efficiency, sustainability, and user comfort, the role of these systems has becomeincreasingly important in commercial spaces. Through an in-depth case study of a mall, the paper analyzes how thesesystems are integrated to ensure optimal performance. The study examines the energy consumption, operationalchallenges, and maintenance strategies employed. Furthermore, the paper discusses the role of innovative technologiesin enhancing system efficiency and reducing environmental impact. The findings provide valuable insights for facilitymanagers looking to optimize building services in commercial developments.