Registered evidence demonstrates that the edges of symmetric-plan buildings will experience dissimilar displacements when subjected to ground motions. This unexpected increase in the building response is mainly due to the presence of rotational excitations at the building base and the irregular distribution of mass, stiffness or strength of the building. Accidental torsion was a topic of much research in the 90’s; however, many questions are still unsolved due to the intrinsic uncertainty of the phenomenon. Building codes approaches for considering accidental torsion have not been extensively tested and may lead to distinct results. To address these issues, this study comprehensively examines the accidental torsion of symmetric plan buildings using recorded information from real buildings. Empirical relationships between the percentage increase in displacements (PID) due to accidental torsion and the coupled frequencies ratios from 76 U.S. buildings are obtained and compared against similar relationships results from previous studies. From this comparison, it is clear that the proposed relationships follow the same trend of the literature, but they have the advantage of using coupled frequency ratios and data from 76 buildings. In a future research, code requirements will be verified using correlations obtained from advanced statistical models.