From the field research conducted in the study area, namely Eretria, the main investigative tool employed was not merely observation but primarily communication with Eretria’s residents, organized stakeholders, local government representatives, and museum staff. This interaction positively contributed to the presentation and subsequent evaluation of the current situation, aiding the creation of a sustainable development assessment framework based on Eretria’s cultural elements. Secondary sources of information included available sector-specific studies, particularly those focused on culture and sustainable development, obtained from the Prefecture of Chalkida and the Municipality of Eretria. Furthermore, the study incorporated a primary field research survey, yielding findings of exceptional interest.