All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
There is a great reward for praying in the mosque. In any case, you are rewarded if you go to the mosque to pray in it.
You are obliged to pray in congregation, even if it is in your house, with one of your family members. By doing so, you are acquitted from sin.
Nonetheless, your going to the mosque is better and greater in reward, as there is a great reward in populating the Mosques of Allah.
Allah Knows best.