» Thu Jun 07, 2012 12:12 am
In order for the house to be available for sale, the murder quest has to be completed. In order for you to be allowed to buy it, you must be a Stormcloak and have gotten to a certain point in the war. IIRC Ulfric will tell you when that happens, letting you know that he will allow you to buy property in the city if you so desire. The property is actually purchased through the steward Jorleif.
You don't have to be Thane to buy the house, but you do have to buy the house in order to become Thane. It may also require you to progress a little bit further in the CW before Ulfric will offer you the title and tell you what the requirements are.
And here's the thing, if you are reporting back to him after finished CW battles, usually he will address the CW situation right off and then tell you what your next assignment is, he will not bring up the possibility of making you Thane and the necessary dialogue options may not appear for you in your responses to the convo about the CW stuff. However, if you disengage from conversation and then re-engage him after the CW convo is out of the way, and you are at the point where becoming Thane is a possibility, you will get the option to ask "is there anything else you require" or something like that and *that* is what triggers the Thane conversation.