At least one accessible route shall connect all spaces and elements that are a part of the accessible entry level floor of the dwelling unit. The kitchen shall be on the accessible level and on the accessible route. Hallways on the accessible level shall have a 42-inch-wide minimum width measured from wall to wall. Doorways on the accessible route shall have a minimum door width of 36-inches and all doors shall contain levers for accessible access. Interior thresholds with levels which exceed ¼-inch high, shall be beveled, with a slope not steeper than one-inch rise to a 2-inch run (1:2). Accessible routes shall have flooring that allows resistance-free use of a wheelchair or similar mobility aid or device. At least one separate room on the accessible entry level floor of the dwelling unit shall include architectural or design features that include but are not limited to a door that closes and a window to ensure egressibility.