Purchasing house with illegal addition?

[Elvis Vasquez]

any idea what the cost is to bring an addition into code compliance?

Seems one of the previous owners has built an addition without any permits (there is a lien currently placed on the house).

Any idea what the costs would be to bring it into code compliance? (its around 300 square-feet seems to be CBS) 

I'd call but usually the officers are unwilling to help until you're the owner - they refuse to talk about the citation at all (despite it being public record).