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NYC Building Code

§ 507.4.1 — § 507.4.1

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What is NYC BC § 507.4.1?

Quick Answer

This section permits Group A-1 and A-2 occupancies in mixed occupancy buildings of unlimited area, provided specific criteria are met, including separation from other occupancies and direct exit access to the exterior. Applies to building owners managing mixed-use properties with designated occupancy groups.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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507.4.1 Mixed occupancy buildings with Groups A-1 and A-2.

BC § 507.4.1

Group A-1 and A-2 occupancies of other than Type V construction shall be permitted within mixed occupancy buildings of unlimited area complying with Section 507.4, provided all of the following criteria are met: 1. Group A-1 and A-2 occupancies are separated from other occupancies as required for separated occupancies in Section 508.4.4 with no reduction allowed in the fire-resistance rating of the separation based upon the installation of an automatic sprinkler system.

2.Each area of the portions of the building used for Group A-1 or A-2 occupancies shall not exceed the maximum allowable area permitted for such occupancies in Section 503.1.

3.Exit doors from Group A-1 and A-2 occupancies shall discharge directly to the exterior of the building.

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