There are many Du'as and Quranic verses for blessing the home after insuring that the home is not a place of committing sinful acts, e.g. Ayatul Kursi , Sura Al-Hamd, Sura Falaq and Sura Naas etc. it is very useful to recite Quran or play Quranic recitation at home as well as Majlis of Ahlul Bayt (AS). A Hadeeth states: The most liked homes to Allah is the home where an orphan lives with honor.
Homes in which Night Prayer is performed lights for the angles of the sky like the stars which light for people of earth.
Wassalam,