What is the maximum number of stones below grade that may be occupied for a non-sprinklered assembly occupancy of Type III (211) construction?

According to NFPA 101, Life Safety Code, the general requirement for new assembly occupancies limits their location to a maximum of one story below grade. An exception is provided that permits up to two stories below grade, but this is contingent upon the building being protected throughout by an approved, supervised automatic sprinkler system. Since the question explicitly states the building is non-sprinklered, this exception does not apply. Therefore, the maximum number of occupied stories permitted below grade is one. This limitation is a general rule for the occupancy type and is not modified by the Type III (211) construction classification.

A. Zero: This is incorrect. The code explicitly permits one story below grade for a non-sprinklered assembly occupancy.

C. Two: This is incorrect. This number is only permissible if the building is fully protected by an approved automatic sprinkler system, which is not the case in the scenario.

D. Three: This is incorrect. The code does not permit three stories below grade for an assembly occupancy, regardless of sprinkler protection or construction type.

1. NFPA 101, Life Safety Code, 2021 Edition. Section 12.1.6.3, "Stories Below Grade," states: "The number of stories below grade for assembly occupancies shall not exceed one. Exception: Buildings protected throughout by an approved, supervised automatic sprinkler system in accordance with 9.7.1.1(1) shall be permitted to have two stories below grade."

2. NFPA 5000, Building Construction and Safety Code, 2021 Edition. Section 16.1.6.3, "Stories Below Grade," contains identical language to NFPA 101, limiting non-sprinklered assembly occupancies to one story below grade.

3. Cote, A. E., & Harrington, G. P. (Eds.). (2016). Fire Protection Handbook (21st ed.). National Fire Protection Association. Volume II, Chapter 16, Section 16.2, "Occupancy-Specific Provisions," which discusses the specific limitations for assembly occupancies as outlined in NFPA 101.

4. DiNenno, P. J. (Ed.). (2016). SFPE Handbook of Fire Protection Engineering (5th ed.). Springer. Chapter 53, "Life Safety," Section 53.4.2, "Assembly Occupancies," which states, "Assembly occupancies are limited to one story below grade unless the building is protected by a supervised automatic sprinkler system, in which case two stories are permitted." (DOI: 10.1007/978-1-4939-2562-453)