Located on the right side of the powerhouse, has an area of 48.7m x 26.2m and height of 23.3m. It is composed of a steel frame structure braced by external concrete shaped walls. The Service Building was designed to ensure the housing of the necessary services for all the future expansion of KPSPP. At present, the building houses facilities like offices, a warehouse, oil treatment depot, various workshops, machinery, an emergency diesel generator, and the emergency 1 MW Pelton Turbine.