New York City, BC 2014 - stories with one exit

According to Section 1021.2 Single exits & Table 1021.2 STORIES WITH ONE EXIT, it seems that only one exit is required for a mixed use building with Group B at cellar & 1st floor, R-2 at 2nd & 3rd floor, provided that I don't exceed the max travel distance & occupants/dwelling units per floor. The fact that the Table doesn't mention a 4th story does it mean that a 4th story would trigger the need for a second exit? Our plan is to build a 4 story mixed use building with one exit if possible. Thanks for all the input. 

 

Original Post

If you look at Tables 1021.2(1) and (2) you'll notice that under the "Story" columns there are rows labeled "Fourth story and above" and "Third story and above," respectively. For each of these they indicate "NP" under the occupancy column. This means there are no occupancies permitted for those floors with one exit.

So, for your project, you will need a second exit.

If it's a Group R-2, per the NYC version, look at at 1021.2, subparagraph 4: 4.1 states "The building does not exceed four stories." It seems to me that if your building complies with all the other items under that subparagraph (4.2 through 4.8), then you can do it

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