Industrial heritage is an important part of the identity of the city of Zagreb, however, many of Zagreb's former factories belong to the category of brownfield areas and are most often in a dilapidated state, neglected even when they are under conservation protection. The aim of this work is to explore the revitalization potential using the example of the brownfield space of the former silk factory Bubara in Adžija Street in Zagreb, and the purpose of the work is to point out the importance of preserving the history, industrial heritage and memory of the neighborhood as a "forgotten" identity of the city of Zagreb and Trešnjevka. The research used an online questionnaire method conducted on a sample of 230 respondents, with which we investigated the identity of the Trešnjevka - sjever City District, the availability and variety of content in Trešnjevka - sjever, the dereliction of Trešnjevka - sjever, and proposals for the revitalization of the area of the former silk factory Bubara. The results of the research showed that the identity of Trešnevka - north is a mixture of old and new, that is, that Trešnevka - sjever in the memory of the respondents is still a working-class, industrial district with a large number of factories, small workers' cottages and their yards, and at the same time an overbuilt neighborhood with major traffic and urban planning problems. Based on the results, we come to a final proposal for the revitalization of the area of the former Bubara factory, and we come to the conclusion that with small interventions it is possible to replace the facilities that the respondents lack in Trešnjevka - sjever and to preserve the identity of this neighborhood as well as the area of the former factory itself. The conducted research can be applied to other similar examples in the city of Zagreb and beyond, that is, with small interventions on a neighborhood scale and the use of neglected identityrelevant spaces, it is possible to raise the quality of life and satisfaction of residents and preserve the urban (industrial) identity.