Occupancy Classification for Basement M/E/P Spaces

[KJE]

We have an existing 3-story building with a full 6000 SF basement below. The first floor is going to be a bar/lounge (A-2) and the upper floors are R-1 hotel rooms. We are having trouble determining the appropriate Use Group to classify these basement spaces that will have mechanical, electrical, plumbing, sprinkler and possibly some storage. The issue is separation requirements between the floors.

 

[mtlogcabin]

and possibly some storage.

It would be an "S" ocupancy

 

[KJE]

If we end up with no storage, do you have thoughts about how this should be classified?

 

[princeofpen]

Unless the entire space is used up by those mechanical systems etc (doubtful at 6000 sq ft) it would be classified as something it resembles out of the possible occupancy classifcations. I'm going with S-1 and required separation per 508.4

 

[steveray]

I'd go S, but if it already exists, likely no upgrades required.....