Nderi secondary is one of the fastest growing day secondary schools in Sigona Ward .Due to the growing number of students, there was a dire need for more classrooms. In the financial year 2013/2014, KES 2,000,000 was allocated by CDF for completion of two classrooms and in the financial year 2014/2015 an additional of KES 1,500,000 for construction of one more classroom that is complete and purchase of lockers . All the three classrooms are complete and in use.