This dataset provides samples of nonlinear time-history analyses of 30 archetype-building models with random parameters, representing different design configurations, exposed to a set of historic ground motions. The archetype buildings consist of 1- to 15-story Steel and Concrete moment resisting frame (MRF) buildings, and they are formulated as reduced order models (ROM), i.e. parsimonious models, utilizing the shear-structure lumped-mass representation. The provided response samples are peak inter-story drift and absolute acceleration engineering demand parameters (EDPs) at each floor. The dataset corresponds to samples for the EDPs for different structural parameters and ground motions and, therefore, captures both structural model variability and ground motion variability.