To apply to the City of Lethbridge Fire Prevention Branch for existing secondary suite approval, complete the approval form and either email, mail or delver the completed form to:

Fire Prevention Branch
1010 - 4th Ave. S.
4th Floor West Wing
Lethbridge, AB
T1J 0P6
Email: fireprevention@lethbridge.ca

Here is a pdf file that tells you about the Fire Code Requirements