Building Permit Issues with Illegal Suite

[Kieran A Kilgour]

Looking at purchasing a property that is a double duplex - 4 units, however the suites are not legal - electrical/heating is shared between the two units in each duplex, etc.  It would be a huge project to bring the suites up to legal standards.  The property inspection turned up roof issues - structural sagging, cracked joists, lack of moisture barrier, improper shingling.  I understand the majority of suites are non-conforming and allowed to operate provided they don't cause the city/neighbors issues, however, were I to purchase this property, would I run into problems pulling a building permit to work on the roof, since it would be subject to building inspections etc. and the suites are not up to code?  I am currently told the city is aware of the suites in this particular property and have allowed them thus far.  I am located in BC, Canada, I understand regulations will be somewhat localized.  Thanks.