The paper explores the possibilities of increasing the comfort of residents by applying a greenhouse as an element in the organization of houses' space. The topic of the paper is the organization of residential buildings based on the space within a space concept, i.e. the layered structure of architectural composition, with the aim of improving the microclimate of the building and using passive energy sources. The inspiration for the research comes from examples of houses in northern Europe, where the glass envelope is used as an membrane around the building, influencing the maximum utilization of insulation, preventing heat loss, and creating additional useful space inside the house. The research was conducted through the analysis of examples from practice, based on which characteristics, benefits, and drawbacks of such a concept were synthesized, resulting in the development of variant schemes and models. The aim of the paper is to promote atypical simple architectural interventions that contribute to energy saving in buildings, passive design, and increased comfort.