Rumah Spektra Mutiara (RSM) program is an affordable housing program for Sarawakians in the B40 and M40 groups who intend to build comfortable and quality residential houses on their own land. This program prioritizes landowners allocated by the Sarawak Land & Survey Department under the Village Expansion Scheme (SPK) and Resettlement Scheme (SPS) throughout the state of Sarawak.