The paper focuses on the effect of business model and governance changes on conservation and access outcomes in three heritage sites in Poland: Ksiaz Castle, the Shrine of Our Lady of Grace Abbey and the Jelenia Gora Valley historic palaces. It argues that the interplay between business model and governance led by relevant political, administrative and economic changes has an impact on which historic buildings are conserved for future generations, in what form, and with which functions.Findings from the case studies allow us to design three ideal business models for the management of heritage sites. The paper also explores implications for management research regarding business model and public sector change.