According a very official looking work stop order and notice of violation stuck to the side of the high profile wall on Saturday, yes!
Issued by the NYC Department of Buildings, it says the newly erected “structure” on Houston Street, built by Deitch workers and covered in wheatpaste by Shepard Fairey, was done without a permit, leaving two options: obtain the proper permits for the “small building” or tear it down. See the full official notifications below. UPDATE: The WSJ confirmed that the mural is currently in violation!