"You are at home."

Translation: Kamu ada di rumah.

[Bjooorn1]

Is it not possible to say "Kamu di rumah"?

[demoksaputra]

You could say that in daily conversation.

[DadangSeti3]

Setiap masa aku bangun kami ada di hotel sedang merangkai sebuah denah bangunan kita ayo makan marilah makan dengan bala-bala,karoket,cireng,gehu,sama lotek tenang tenang jangan marah marah kita disini enggak mau musuhan

[this_guy_andra]

'Ada di rumah' basically means 'Be at home' whereas 'di rumah' alone means 'at home'

[Flanders1]

isn't rumah just a house not necessarily a home?

[t1_0]

home/house = rumah