live in the Potter vaction house, which James Potter left to Sirius in his will. after the death of his younger brother Regulus and his mother and father, Sirius moves his younger sisters and brothers, who are teenage Sage Bella, child triplet Soren, Shan Bella and Siriuis Black 4th and toddler twin brothers Ross Mal and Richard Black here,.Sirius Black the thrid removed the unplottable charm and the other magical spells on #12 Grimmauld and then sale the house because none of them want it.