In the contemporary Portuguese city, the square is an urban legacy with a European matrix, whose asset valueis crucial as part of the urban history, but also its experience and collective memory. This matrix was subsequentlyexported to non-European countries, becoming indispensable in the colonial city. Over the past twentyyears, urban policies of safeguarding and preserving historical centers resulted in three types of actions forremodeling squares: interventions under the responsibility of technical services of municipalities; interventionsresulting from public tenders, led by architects; interventions under order direct, usually coordinated by architectsrenowned nationally and internationally. In this context, there are two fundamental design methodologies:one more conservationist and one more open to a contemporary reinterpretation of models, drawings andbuilding systems resulting from a local urban culture. The choice of one of these approaches is often set by thetime in which it is performed and is strongly related to the theoretical production and letters and recommendationsof existing international bodies, as well as a practice associated with an intervention in architecture, governedby globalizing influences. This paper proposes the analysis of the Portuguese context, having as a pointof arrival, a dual purpose: to provide an analysis of urban intervention in the consolidated city, identifyingkey inflections which prompted it; lay the groundwork for a research project within the Portuguese-speakingcommunities, identifying possible similarities and dissimilarities, leading to the study of a hypothesis of contemporaryurban lusophilia within this theme.