Huntsville, AL: How to determine if additions are permitted?

[Charles Hirst]

I have a line on my first BRRRR purchase in Huntsville and have a question regarding permits for obvious additions. The house has obvious additions, some well done, some of dubious quality, and an additional garage structure. I have searched the city websites, Google, etc. to no avail on how to find out if and when these were permitted.

If anyone knows of a web-based way to find this information?  If not, the only course of action would appear to be to call the building department and ask someone.

Thanks,

Charles