So here is what I want to do. I want to create a mod that makes a guild hall for my new mod (haven't thought of a name). Whats so interesting, even though it may have already been done, is that I want the damned building to be INVISIBLE until you are close to it. I want it so that you have to look in the mountains for this building and several other to join the guild. SO my question is, how can I do that? I am sorry if this has already been discussed.

Just have the building parts, doors, windows, etc. disabled unless the player is within some small distance, then they would just basically appear from thin air.

Just don't make them visible when distant, and if using a vanilla model with a _far.nif, just make a copy of that model (outside the editor) with a different name and link the static to that one. The player won't see it until they're about 2 cells away. Combined with being in a remote location and not having a visible map marker, it would make it hard enough to find.

Thanks for your thoughts HeyYou, but I wanted these Guild Halls (Yah many of them) to have NPCs in them and it would look weird if they wandered around the mountains aimlessly. I can make them invisible, but how do I turn off the spell if they are a certain distance away from the building's perimeter? Yes a noobish question, but a necessary one. Also if I disable and re-enable the buildings, all the stuff inside would reset too right? This would defeat the purpose of my mod. Thanks again!
To Vagrant0, I dont REALLY understand what your saying but, I need the Playing Character to be maybe 1 or IN the cell to see it. This is a very plot enhanced mod with a story line. So I would apreciated any help with the scripts please!

If the NPCs are inside of the building, they won't appear to be wandering around aimlessly. If they're outside, maybe you can tweak the idea and make it so that the character has to find a sort of portal that leads to a separate worldspace?

For what HeyYou suggested, you'd use a script that detects how far away the player is and activates/deactivates the building based on that. It should be fairly simple, but I'm not a scripting expert myself.

Thanks for the Portal Idea! I think I try all the Idea's. Oh and if I disabled the house with people in them, it would cause an error as they are in something that doesn't exist, Right?
Anyways, Time to get Crackin'!

Depends. If the interior is a separate cell. (I.E. you go thru a load door to get there....) then it really doesn't matter what happens to the 'exterior' of the house, as the two have little to do with each other.

Ah. I forgot about that. Thanks!