The scholarly discussion of archives in the premodern Islamicate world is beset by problematic generalisations. Such a view to some degree stems from a top-down view of archiving that focuses on state archives at the expense of practices of archiving occurring outside a chancery context. This article challenges the assumptions that support an enduring narrative of paucity, by examining non-chancery archival practices in Mamlūk Cairo on the eve of the Ottoman conquest in 922/1517. In doing this, it looks to some of the surviving original documentary material: legal property deeds with connections to waqf endowments whose potential to shed light on archival history has largely remained untapped. Surviving in large numbers in modern collections in Cairo, these documents contain abundant traces of their own archival histories. By presenting a micro-scale case study drawn from this material, this article shows the energetic and meticulous documentary and archival practices that surrounded property transactions in late-Mamlūk Cairo.