Are there rules for strongholds?

[Felorn]

Are there any rules for building strongholds in Pathfinder? Or any type of building for that matter?

[DemonicEgo]

You can always use the 3.0 Stronghold Builder's Guidebook. If you can wait, because I sure can't, Ultimate Campaign comes out in April or so, and it's supposed to have rules for strongholds in it.

[Tinalles]

The Kingdom Building rules in the Kingmaker AP are vaguely related, but fairly abstract. You don't wind up with a floor plan.