The exterior of the Marine building is used as the fictional Baxter Building in New York City
Miriam Bancroft takes Kovacs into the mansion and shows off the Song Spire Tree that she had imported in episode 1x01 "Out of the Past". Kovaks mingles in the party as a guest while Elliot poses as a waiter. Ortega spots Kovaks in the crowd and then heads off to talk with the fighters in episode 1x03 "In a Lonely Place". Kovaks forces his way through security to talk to Laurens Bancroft but only finds Miriam home in episode 1x05 "The Wrong Man". Appears in 1 more episode.
Final scene of the movie.