So, we can find them in the broker of course ;D
I've seen recipes since level 37 and 45, then latter building recipes for level 60 and 62 of carpenter.
Do they drop from normal mobs, dungeon elite, pvp zone, public event mobs/bosses or dungeon bosses?
Next is the materials needed for that buildings. Someone stated he needed help from his guildies to achieve the construction of a cabin log. Any other carpenter here attempted a mansion or any other two story building? If yes, can someone stir some light about the materials needed for it?