1016.3.1 Group R-2 nonhigh-rise occupancies.
BC § 1016.3.1
In buildings in occupancy Group R-2 not subject to Section 403, a door from a dwelling unit shall open into an intervening public hall. Such public hall shall be constructed as a public corridor in accordance with Section 1020. Opening protectives in accordance with Exception 3 of Section 707.6 shall not be permitted. Exceptions: 1. No intervening public hall shall be required for any of the following: 1.1. A building that is both three stories or less in height, and contains two or fewer dwelling units per story; or 1.2. A building that complies with Item 6 of Section 1006.3.2.
2.No intervening public hall shall be required where the doors opening to the apartments are smoke and draft controlled doors complying with UL 1784 without artificial bottom seals, in accordance with Sections 716.5 and 716.5.7.3 of this code, and the building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1 of this code. This exception shall not apply to any building that complies with Item 7 of Section 1006.3.2 of this code where there is more than one apartment per story.
