Amendments to Existing Permits

To request an amendment to work approved under an existing, valid LPC permit, please submit the following:

  • A letter from the architect or owner identifying the LPC permit that is to be amended
  • A statement describing what and why the scope of work has changed
  • Associated color photos and mockups
  • Associated written specifications
  • Two sets of revised signed/sealed Department of Buildings filing drawings (if applicable)

To request an extension of an expiring LPC permit, please submit the following at least sixty (60) days before the expiration date shown on the permit:

  • A copy of a valid Department of Buildings permit for the work approved by the LPC permit
  • A copy of a signed contract which specifies that the work approved by the permit has started

Requests may be sent by messenger, hand delivery, or US mail to:

Landmarks Preservation Commission
Attention: NOCs/Amendments
1 Centre Street, 9th Floor North
New York, NY 10007

If there are no DOB filing drawings to submit, requests may be emailed to

Please do not send requests directly to any LPC staff member.