@Massacre: since no one else responded to your Green Acres challenge, I will!
I believe it was where the GM's put houses and test houses. If my memory serves me correctly right around the time of the introduction of Trammel/Felecca, knowing that there was going to be a large surge of house placements they upgraded the options. Furthermore, the only houses at the time were small, brick, two story "L" shaped, towers, keeps and castle's! Hah! Remember those days??