Where is Kojak's office located?

Here is information about the set, from Alan Sepinwall's NYPD Blue website: both shows used the same exterior for filming.

"The NYPD stationhouse exterior for the 15th Precinct is really the 9th Precinct house at 321 East 5th St. between 1st & 2nd Ave., which is the same one that was used on the 70s cop series Kojak and was a real precinct house in New York City. The 9th Precinct was recently moved to a location further east, and the familiar building went empty for a few years before the city finally demolished it."