(Sources: http://forgottenrealms.wikia.com/wiki/House_of_Stone; Dragon #273)

Micro-Worldbuilding Opportunities: None of the campaigns in my pile of reference material touch this massive tower, but I still find use for this. With its proximity with Ardeep Forest, the Dancing Dell, and the Floshin Estate, the House of Stone can be used as a meeting place between the Elves and the other races—especially dwarves—where treaties and negotiations can be held.

Of course, they have to clear it of all the undead and monsters that dwell in it first. It does have a dungeon after all.