Iranian Light Source Facility design is based on attaining an ultra-low emittance electron beam to provide the necessary conditions to achieve super bright, stable, and reliable synchrotron radiation. In order to ensure that the facility will perform as expected in a cost-effective way, a lot of care has to be put into account. The proper tolerances and the cost-efficient scheme to achieve these goals should be found. The design of high stability machines is strongly affected by the characteristics of the construction site. But since the choice for the machine site cannot always be based on purely technical factors, a high stability floor design has to take into account the local conditions to find a solution that minimizes the effects of existing vibration sources. Since the tolerances required for this class of machines is beyond what is normally required for civil engineering, the analysis of solutions used in similar facilities and their achieved performance is fundamental for a new design. Therefore in this talk, I will present MAX IV, SIRIUS, ALBA, HEPS, and NSLS-II stability-works and initial estimation of Iranian light source stability requirements.