A brothel in a dream is read symbolically, as desire, secrecy or the feeling that something intimate has been turned into a transaction. Tradition also asks where in waking life you feel you are bargaining with yourself.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.