to the apartment/department of
Terminamos con usted ahora y vamos al departamento de policía.
We're done with you now and we're going to the police station.
— Sin amor (2017)
Mis disculpas al departamento de Recursos Humanos.
My apologies to the Human Resources department.
Fui al departamento de Tom.
I went to Tom's apartment.
Tom acaba de llegar al departamento de Mary.
Tom has just arrived at Mary's apartment.
Por favor, llama al departamento de bomberos.
Please call the fire department.