Property
I think the biggest enhancements that could be made to enhance efficiency and minimize infiltration would be by increasing windows in quantity and size along the eastern and western walls, and having these windows be sealed so as to minimizer infiltration, this, however, I think will only mildly enhance the settings. I see the biggest enhancements and potential increases in efficiency coming from potential changes in the HVAC systems, operating schedule, and most of all, the lighting efficiency. An increase in natural light usage might be able to increase lighting efficiency and bring down the overall EUI levels on this.
Link to insight page: https://insight.autodesk.com/OneEnergy/Model/265523