How does the architect come to mind the "form" of the house? From uninhabited physical and mathematical spaces or from cultural memory, in which this "form" is presented as the experience of life observations? Temple, palace, hotel, government building, office, library, museum, theater... The eidos of a projected house is an invariant of a particular architectural genre developed by a given culture; it is a tradition established in a given cultural range. By what signs do we recognize these architectural genres? Is there a poetics of dwellings, poetics of educational institutions, poetics of metro stations? Is poetics of architecture even possible?