This research project helps to establish the characteristics of multi-unit residential buildings that would have to be delivered in order to achieve high levels of energy performance. The insulation and airtightness levels and mechanical system efficiencies are technically possible but nevertheless would represent a significant departure from current multi-unit residential building (MURB) design and construction practices. Issued also in French under title: Simulations énergétiques de stratégies pour la conception d’immeubles collectifs à faible consommation d’énergie dans différentes régions du Canada. “April 2015.” 5, [1] p. : fig., graphs, tables.