§ 4-142. General Building Heights and Areas; Section 507, Unlimited Area Buildings.

(a)

The following deletions are made to Section 507.1 of the IBC: Section 507.1 General. The area of buildings of the occupancies and configurations specified in Sections 507.1 through 507.12 shall not be limited. Basements shall not be permitted.

(b)

Section 507.4 Sprinklered one-story buildings. The area of a Group A-4 building no more than one story above grade plane of other than Type V construction, or the area of a Group B, F, M or S building no more than one story above grade plane of any construction type, shall not be limited when the building is provided with an automatic sprinkler system throughout in accordance with Section 903.3.1.1 and is surrounded and adjoined by public ways or yards not less than sixty (60) feet in width.

Exceptions: Buildings and structures of Types I and II construction for rack storage facilities which do not have access by the public shall not be limited in height provided that such buildings conform to the requirements of Section 507.3 and NFPA 13 and Chapter 32 of the International Fire Code. In addition, the automatic sprinkler system shall not be required directly over the sports floor areas or swimming areas of buildings occupied for indoor participant sports, such as tennis, skating, swimming and equestrian activities in occupancies in Group A-4, provided that (1) exit doors directly to the outside are provided for occupants of the participant sports area; and (2) the building is equipped with a fire alarm system with manual fire alarm boxes installed in accordance with Section 907; and (3) the building owner furnishes to the Director or the Director's designee a notarized statement acknowledging that future use of the unprotected sporting floor areas of the facility will be limited to sporting activities of a low hazard nature with minimal occupant loadings and no combustibility of contents and furnishings other than necessary to the sporting events.

(CB-87-1979; CB-121-1985; CB-97-1989; CB-98-1991; CB-63-1995; CB-54-2002; CB-13-2009; CB-45-2012; CB-90-2015)