Sky Exposure Plane

Sky Exposure Plane NYC Zoning

(Last Updated On: December 9, 2018)

A sky exposure plane is an imaginary plane that sets an inclined boundary that a building cannot penetrate. The sky exposure plane establishes a limit for a building envelope as specified in the zoning code.


Sky Exposure Plane

  • Front Sky Exposure Plane
  • Rear Sky Exposure Plane

The sky exposure plane is specified for certain zoning districts in the NYC Zoning Resolution. There are 2 types the front and rear sky exposure plane.


What is a Sky Exposure Plane?

The Sky Exposure plane is an imaginary sloping boundary. A building development cannot penetrate the sky exposure plane, with the exception of permuted obstructions.

The Slope of the sky exposure plane is specified in the Zoning Resolution as a ratio of vertical to horizontal this ratio will change in different zoning districts and with different conditions. The plane can start at the property line or be set back this will be specified int he code. Additionally the plane can start at an elevated point the height is also specified in the zoning code.

A Sky Exposure plane can result in buildings with setbacks for zoning, pitched roofs, or sloping facades.


Thank you for reading our post on the sky exposure plane. 

We hope this was helpful. Please leave questions or comments below. If you would like to discuss a specific project you can Contact Fontan Architecture directly. Or learn more about our New York Architecture Firm.


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