One variation of a method for detecting breach events by residents of an assisted living facility includes: defining an access perimeter containing a first space and excluding a second space within a facility, the first space and the second space separated by a door assigning the first individual access perimeter to a first resident, in a set of residents, occupying the facility maintaining the door in an unlocked state by default during a first period of time tracking locations of resident wearable devices associated with residents, in the set of residents, within the facility during the first period of time and, in response to a first location of a first resident wearable device associated with the first resident falling inside the individual access perimeter and within a threshold distance of the door at a first time during the first period of time, triggering the door to enter a locked state.