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NYC Building Code

§ 1817.4.3 — § 1817.4.3

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What is NYC BC § 1817.4.3?

Quick Answer

This section allows existing structures that are founded above adjacent new construction to be supported on specific classes of rock instead of requiring underpinning, provided that the conditions outlined in Section 1817.3.4 are met. Applies to building owners involved in construction projects adjacent to existing structures.

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

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1817.4.3 Use of rock support.

BC § 1817.4.3

Existing structures founded at a level above the level of adjacent new construction may be supported on Class 1a, 1b, and 1c rock in lieu of underpinning, provided the requirements of Section 1817.3.4 are satisfied.

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