During October 2024, the OPUSH Delft team engaged with residents of monument houses in Delft to discuss their experiences and challenges that they face while living in a monument house. The perception of the residents was recorded firstly through a short survey that touched upon the level of comfort, any changes that their house has undergone, and any discrepancies between the installation requirements of alternative sources of energy and the structural integrity and possibilities of change in the monument buildings. In addition to that, the survey was followed by a short interview session with residents who wanted to share more information about the issues that they are facing, the research, analysis, or work that they have done on their own, and any additional collective effort needed to proceed in the future. Delft, being home to more than 1500 municipal and state monuments faces a challenge in the transformation towards sustainable sources of energy, with the situation being worsened from the part of residents who face increased costs due to economic, political, and environmental changes. The lack of an energy labeling for monument buildings also poses a problem for the proper monitoring of the extent of the problem.