Structural fragility functions for predominant building typologies in Türkiye are derived based on observational damage data collected after the February 6, 2023 Kahramanmaraş earthquakes. For this purpose, the official damage data set is compiled and classified in GIS environment. To identify predominant typologies, building classification scheme that considers lateral load-resisting structural system type, number of floors and year of construction and that is implemented in portfolio type earthquake loss assessment studies in Türkiye is adopted. Furthermore, the building's intended use, i.e. the usage category whether residential or commercial, is also taken into account in building typology definitions that allows the first time to customize structural fragility functions with respect to building occupancy purposes. Fragility functions for the identified building typologies, e.g. low-rise, residential, reinforced concrete moment resisting frame type buildings constructed before 1980, etc., are presented in terms of peak ground acceleration and peak ground velocity. The provided fragility functions can serve in portfolio type earthquake risk and loss models as well as can be beneficial for the calibration and verification of the analytically derived fragilities for similar building typologies.