Ok, I crafted my deed to the royal chateau and I finished the quest and...bump cuss. That's right...Nothing happened! It took an hour to show up in my market. So, don't be disappointed if it doesn't show up right away in the market. As for the building requirements, previous posters are correct. I don't know if this was just some sort of glitch or not but just wanted to share so that others aren't frustrated if it takes a little bit to show up in the market. I also leveled up at the time I finishes this quest, so that may have something to do with it. At the end of the day it is pretty cool looking and is great to pee in the Baron's Wheaties!