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NYC Building Code

§ 1817.3.3 — § 1817.3.3

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What is NYC BC § 1817.3.3?

Quick Answer

This section outlines the requirements for verifying the lateral stability of unreinforced masonry buildings during construction activities. If verification is not possible, lateral support must be provided at the floor levels of adjacent buildings, which should be detailed in the construction documents. Applies to building owners involved in construction or underpinning of unreinforced masonry structures.

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

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1817.3.3 Additional requirements for unreinforced masonry buildings.

BC § 1817.3.3

Where the building being supported is of unreinforced masonry construction, the lateral stability of the masonry walls and their ability to resist the loads imposed shall be verified. Exception: If it is not possible to verify the lateral stability of the masonry walls, lateral support shall be provided at the floor levels of the adjacent building prior to installation of the underpinning or alternate method of support. Such lateral support shall be shown on the construction documents.

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