Here's a rather hefty collection of 32 medieval and/or nordic buildings including 2 inns, 2 churches, 2 windmills, a farm, barracks, normal small houses and a lot more.
I got inspired by two projects: this medieval building bundle (by Novv) and this church, I included a forgery from the medieval building bundle and the church with some modifications. Some buildings were also inspired by Age Of Empires.
The rules for using the stuff are clearly explained here: WTFPL if anybody cares. I don't know if that applies to the modified buildings I took from the pages mentioned above, I basically downsized what they did.
Here are some notable stuff:

• I named all buildings according to their owner.
  
• All houses are furnished.
  
• In the Travaller's notch the bar is functional.
  
• In Hiie's house there's a hidden compartment activated by a switch (that doesn't work in version 1.1 for some reason).
  
• Barracks, watchtowers, Tjorven's forgery and the Town Center (which is clearly a forum) are from AOE.
  

I think this might constitute a good alternative to the current generated NPC villages, I'd be extremely happy if this got used in the vanilla game, but I don't know how to push the suggestion to Jon/Jeb.