Programme 'RUMAH KOS RENDAH (RKR) at UITM Perlis is an initiatives to create a prototype of a low cost housing for the masses. As seen in the news, the average cost for each house raising rapidly each year. Thus an initiative for a low-cost housing will be needed as a model for future developments. To achieve this aim, UITM partnered with Greencon Green Building Materials in providing the materials needed by this project. By intergrating the IBS system in this project, it will reduce the cost of the project significantly. Autoclaved Aerated Concrete was used as these materials were also certified by CIDB and GBI credits.