The office market’s post-pandemic bifurcation has created a situation that would have seemed implausible a decade ago. Trophy and Tier 1 buildings in major cities are posting record rents and strong absorption. The buildings below them, older, lower-floor, poorly amenitized, and uninspiring, are sitting empty. At the same time, housing shortages in nearly every major American city have created demand for residential units that new development alone cannot meet fast enough.