The aim of the article is to elucidate pro-environmental solutions and activities, consonant with the tenets of sustainability and enduring developmental paradigms, implemented within the infrastructural purview of the cultural institutions situated in Poznan—a municipality located in western Poland. A diagnostic scrutiny was executed encompassing the entirety of municipal cultural entities, constituting a cumulative assemblage of 15 establishments, all of which were extended invitations to participate in this investigation. Interrogations were directed towards ascertaining their strategic, environmentally conscientious determinations vis à vis the construction, renovation, or modernization of edifices during the temporal expanse of 2021 and 2022. Ultimately, responses germane to the posed inquiries were proffered by 7 institutions, as the remaining entities refrained from financial investments during the stipulated timeframe. The discerned outcomes illuminate the manifold pro-environmental measures and endeavors embraced by these institutions within the domain of infrastructural initiatives. These initiatives pertain to ecological considerations, safeguarding the natural milieu, and fortifying sustainability, encompassing facets such as energy and water conservation, the abatement of water and air contaminants, recycling endeavors, the utilization of renewable materials, the afforestation of vicinities, and the mitigation of the ostensibly designated “heat island effect”, among sundry others. These initiatives are not only significant for the current ecological situation worldwide, but they also appear to be crucial for the better future of the next generations.