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NYC Building Code

§ 901.9.4.2 — § 901.9.4.2

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What is NYC BC § 901.9.4.2?

Quick Answer

This section mandates that alterations to a space within a building must adhere to fire protection requirements if the value of the alterations falls between specified percentages of the existing building's value. Applies to building owners undertaking significant renovations in structures with multiple dwelling units.

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

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901.9.4.2 Alterations requiring fire protection systems in the space being altered.

BC § 901.9.4.2

If the value of alterations of a space is between 30 percent and 60 percent of the value of the existing building, or, in the case of a building containing 4 or more dwelling units, if the value of alterations of a space is between 30 percent and 50 percent of the value of the existing building, those portions of the building being altered shall be made to comply with the fire protection requirements of this chapter.

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