Novel ground improvement methods, namely prefabricated vertical drains (PVD), cement grout columns (CGC) and geogrids have been successfully used in 3 case studies involving a road project on peaty soils, raising of an existing dam to increase the yield of its existing reservoir and for the rehabilitation of a hill slope, respectively. These ground improvement methods are considered sustainable engineering practices in their own rights as each method maximizes design efficiency, thus minimizes manpower requirements as well as wastage of costly construction materials.