421a Exemption

Your property may qualify for a property tax exemption if your property value changed because you did construction on a multi-family residential building. Benefits vary based on:

  • location;
  • property use; and
  • requirements for affordable housing.

The NYC Department of Housing Preservation and Development (HPD) determines your eligibility and approves your application. Finance administers the benefit. Read more about the 421a Legislation Overview and Frequently Asked Questions.

Application Process
To apply you must first submit an application with HPD. Once you are approved by HPD, you will receive a Certificate of Eligibility. You must then submit Finance’s 421a application along with the Certificate of Eligibility you received from HPD.

Properties With a 421a Exemption

This report shows properties receiving the 421a partial tax exemption listed by Borough, Block & Lot, Neighborhood, Building Class, Tax Class, and Address.

2013/2014 421a Exempt Properties
(Descriptive Data as of Final Roll FY 13/14)
(Building Class Data as of Final Roll FY 13/14)
Adobe PDF MS Excel 
ManhattanDownload Download 
BronxDownload Download 
BrooklynDownload Download 
QueensDownload Download 
Staten IslandDownload Download 


Forms and Reports