Walaikumussalam
Congratulate you and your family for new house.may Allah grant you best house in the aakherat .aameen
You may recite Sura Fath, Sura Rahman, Sura waqea , Sura Insan,Sura balad,Aayatul Kursi, 4 Quls ,Hadees Kisa and Dua e Tawassul.
Pray two Rakat namaz e Shukrana qurbatan ilallah like morning prayer.
Best day to move us Friday or Eve if Friday or any birthday of Ahlul bait as and you can follow the calendar also.
Wassalam