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NYC Building Code

§ 510.4 — § 510.4

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What is NYC BC § 510.4?

Quick Answer

This section outlines the construction requirements for parking garages located beneath Group R buildings. It specifies that the number of stories for determining minimum construction type is measured from the floor above the parking area, and mandates that the floor assembly must meet specific fire-resistance ratings. Applies to building owners with Group R structures that include parking garages.

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

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510.4 Parking beneath Group R.

BC § 510.4

Where a maximum one story above grade plane Group S-2 parking garage, enclosed or open, or combination thereof, of Type I construction or open of Type IV construction, with grade entrance, is provided under a building of Group R, the number of stories to be used in determining the minimum type of construction shall be measured from the floor above such a parking area. The horizontal floor assembly between the parking garage and the Group R above shall comply with the type of construction required for the parking garage and shall also provide a fire-resistance rating not less than the mixed occupancy separation required in Section 508.4. (Am. L.L. 2023/077, 6/11/2023, eff. 6/11/2023) Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2023/077.

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