SLC brothel
near City Creek Center
active late 1800s and early 1900s
Cigar factory on street level (legitimate business to hide the upstairs activities)
Upper floors had parlors with various private rooms where the business activities took place.
The women paid a small monthly fee to SLC and were considered "female boarders" and the SLC police were told to leave them alone if they were current with the monthly fees.

http://fox13now.com/2017/08/13/uniquely-utah-salt-lake-city-brothel-for-sale/

I wonder how many apostles, stake presidents and bishops paid visits to the levels above the cigar factory?
Probably not zero

You mean it's not at 50 East North Temple St.?