While there are many things with this project that could stop me (money, illness, magic, giant mutant rabbits) the one thing that would stop me cold is if the city says no.
Expecting to be on hold for ages I gave a call to the city (3-1-1) where, after informing me that if it is a life threatening emergency I should instead call 9-1-1, I spoke to a live human moments later. Unfortunately this live person bumped me to the building permits department and I fell into the voice mail of someone named Judith. I was so pleased to almost get a live person I didn't write down their full name.
I hope they call me back.
24 hours later
No one has called me back yet so I tried calling again. This time I spoke to Martin who forwarded me to the Nepean Development Office at extension 41250. I left another message.
I hope they call me back.
24 hours later
They just called me back. The requirements are pretty simple. It can't be taller than 15 feet and the set back is 2 feet from the eves (not the walls). It must be more than 4 feet from the house. Finally, it cannot take up more than 50% of the yard it is in. Other than that, apparently I can do whatever I want from electricity to plumbing to a second floor to anything.
Now I need to generate a plan and submit it.