Certificate of No Effect (CNE)
N.Y.C. Admin. Code § 25-305; § 25-306
Under N.Y.C. Admin. Code § 25-305, no construction, reconstruction, alteration, or demolition of an improvement on a landmark site, in a historic district, or containing an interior landmark may proceed unless the Landmarks Preservation Commission has issued a certificate of no effect on protected architectural features, a certificate of appropriateness, or a notice to proceed. Section 25-306 governs the certificate of no effect: it is granted when proposed work requiring a Department of Buildings permit would not change, destroy, or affect protected (exterior, or for interior landmarks interior) architectural features — typically interior renovations or mechanical-equipment work — and it is issued at the LPC staff level without a public hearing.
Who must comply
Other LPC regulations
LPC Rules (63 RCNY Ch. 2)
63 RCNY Ch. 2 (Title 63 of the Rules of the City of New York)
GML §96-a (State Preservation Enabling Authority)
N.Y. Gen. Mun. Law § 96-a
Landmark and Historic District Designation
N.Y.C. Admin. Code § 25-303
Certificate of Appropriateness (C of A)
N.Y.C. Admin. Code § 25-305; § 25-307; § 25-308
Insufficient-Return Hardship Application
N.Y.C. Admin. Code § 25-309
Permit for Minor Work (PMW)
N.Y.C. Admin. Code § 25-310
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