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New York, NY Historic Preservation: Historic-Cultural Monuments (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Regulator
Landmarks Preservation Commission
Permit needed
Certificate of appropriateness or no-effect
Landmark age threshold
30 years or older
Criminal fine range
$5,000-$10,000, up to 1 year jail
DOB permits blocked
Until LPC certificate issued

Summary

Designated NYC landmarks and interior landmarks can't be altered, reconstructed, or demolished without prior approval from the Landmarks Preservation Commission.

it shall be unlawful for any person in charge of a landmark site or an improvement parcel or portion thereof located in an historic district or any part of an improvement containing an interior landmark to alter, reconstruct or demolish any improvement constituting a part of such site... unless the commission has previously issued a certificate of no effect on protected architectural features, a certificate of appropriateness or a notice to proceed authorizing such work.

Source: NYC Admin Code section 25-302View official code

Full Breakdown

Once the Landmarks Preservation Commission designates an improvement, landscape feature, or interior as a landmark, scenic landmark, or interior landmark, the owner needs a certificate from the commission, a certificate of no effect, a certificate of appropriateness, or a notice to proceed, before altering, reconstructing, or demolishing it. The Department of Buildings cannot issue a construction permit for landmarked property until that certificate is on file, and the requirement runs with anyone doing the work, not just the owner.

Violations & Fines

Altering or demolishing a landmark without LPC approval is a misdemeanor: fine of $5,000 to $10,000, up to one year in jail, or both; each day the unauthorized condition continues is a separate violation.

Frequently Asked Questions

Can I alter a NYC landmark building without approval?
No. City Administrative Code § 25-305 makes it unlawful to alter, reconstruct, or demolish a designated landmark, landmark site, or interior landmark without a Landmarks Preservation Commission certificate first.
What qualifies a building as a NYC landmark?
Under § 25-302, an improvement at least 30 years old with special character or special historical or aesthetic value tied to the city's development or heritage, once formally designated by the commission.

Sources & Official References

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All New York rules

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