It is recommended to offer voluntary prayers in one’s house although it is permissible to offer them in the masjid
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ بَرَّادٍ الأَشْعَرِيُّ، وَمُحَمَّدُ بْنُ الْعَلاَءِ، قَالاَ حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ بُرَيْدٍ، عَنْ أَبِي بُرْدَةَ، عَنْ أَبِي مُوسَى، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " مَثَلُ الْبَيْتِ الَّذِي يُذْكَرُ اللَّهُ فِيهِ وَالْبَيْتِ الَّذِي لاَ يُذْكَرُ اللَّهُ فِيهِ مَثَلُ الْحَىِّ وَالْمَيِّتِ " .
Abu Musa reported Allah's Messenger (ﷺ) as saying: The house in which remembrance of Allah is made and the house in which Allah is not remembered are like the living and the dead.