Yes, if you are renting out 4 or more rooms, you need a license of lodging.

I really appreciate you taking time answering my questions. Your encouragement makes me feel much more comfortable now. I will share back my experiences once I've gone through the process. :)

Thank you so much for your detailed reply! I have no problem to have safe housing department to check my house and pay the license fee as long I'm clear about the requirements for fire and health. It's hard to get some detailed guidelines from the city. I called them a couple of times. I was...

Hello, Everyone, I have a student house in Calgary. I recently got a letter from the city requiring me to get a license for lodging. I called the Planning department, I was asked to change my residential building into a commercial building. Can anyone who has experience in this help me? Do I...