While some large buildings are largely empty in the near term, multifamily real estate is facing the opposite challenge: unprecedented continuous occupancy. Residents are working from home and staying at home—cooking more meals at home, using other appliances more or less all day, in addition to elevated use of heating and cooling systems. The properties may be seeing more elevator trips, more in-and-out foot traffic with food and package deliveries, more outside air ventilation, and the need for more intensive and frequent cleaning of common areas.