In the past twenty years, the topic concerning sustainability has taken on significant importance in the building industry. A brand-new environmentally friendly building element that may be employed as a slab platform is called the Bubbles Deck concrete system. When compared to conventional slab alternatives, the benefits of adopting this method result in considerable cost savings for the building industry as well as benefits for the economy, society, and environment of up to (50%) and a self-weight decrease of (35%). As a result, less concrete must be manufactured and being shipped until its final the location, saving a significant amount on structural components like a basis and row frameworks. Additionally, because less concrete must be made and delivered via routes, power consumption and greenhouse gases gases are constrained. Using ETABS programme, a comparison with regard to stiff irregularity in standard slabs with different layouts and bubble deck slabs with various arrangements was done in this work. Eight models—normal conventional slab, flat slab with drop, flat slab without drop, normal bubble deck slab, and their stiffness irregularities—were studied. These models yielded some notable discoveries. Based on the comparison research, a flat slab system with a drop and a bubble deck slab system can perform better than a slab system without irregularities. Stiffness irregularities degrade all slab systems. These results show that stiffness inconsistencies and decreases in flat slabs or bubble deck systems are important for design and construction. Future study might examine stiffness irregularity mitigation measures and slab system durability under varied stress circumstances. This work adds to slab system knowledge and helps engineers, architects, and researchers choose and develop slab systems for varied structural purposes