UK Landlord Forum / Life

Hi guys, could anyone help with regards to Additional licence: My property is a 3 story house converted in 5 self contained apartments. 5th apartment is not still finished, I live in 1 apartment, and the other 3 apartments are rented to 3 different people, so in each apartment there is only one household, they do not share any facilities. The council says that I have to fill the forms for additional license of houses of multiple occupation and dont want to explain why. My question is in these  circumstances when nobody is sharing facilities do i have to fill these forms for additional licensing when I am not an HMO, and if yes why? Please advice.

Regards