This is somewhat common in my games.........I've never actually had the opportunity to do it, but I always wanted to create a setting in which dungeons were the equivalent of gold rush mines. If you could clear it, you could claim it -- with all the expected gold rush tomfoolery.
.......as I use the Ancient Dominion Rules from BECMI. In particular I use the "Get a Life" rules for adventures. So I encourage characters to make a mark in the world and "be" somebody.
So most players have their character "build up a portfolio" of mines, trade routes, exotic items and such...often "group" ones too from adventures.