The study rigorously evaluated the efficacy of geogrids in attenuating seismic waves utilizing Finite Element Analysis (FEA) with Plaxis 2D. The analysis incorporated seismic data from the 2015 Gorkha earthquake and specific soil parameters from Balkhu, Kathmandu. The results revealed that attenuation rates varied between 70 and 30%, depending on loading conditions, soil stiffness, and geogrid stiffness, with stiffer geogrids exhibiting superior performance. Notably, the geogrids were significantly more effective in softer soils, achieving attenuation rates of up to 80%, in contrast to their performance in stiffer soils. These findings emphasize the critical importance of integrating soil properties, surface load, and geogrid characteristics into the design of seismic risk mitigation measures. The study advocates for further research, including comprehensive field tests to corroborate the FEA results, exploration of diverse geogrid materials and configurations, in-depth analysis of soil-geogrid interactions, and a thorough cost–benefit analysis to ensure practical and economic viability.