Dawnstar Sanctuary

The Dawnstar Sanctuary is an underground lair which can be owned by the character after completing the Hail Sithis quest, in which the original Dark Brotherhood Sanctuary is destroyed. Nazir and Babette will make the move while you speak to Delvin Mallory in the Thieves Guild about upgrading the space. Available upgrades include a master bedroom, a torture chamber, new banners and a secret passage.