"Idziesz już do domu?"

Translation: Are you going home already?

[JerryMcCarthy99]

"Are you going home already?" would be more likely....

[Jellei]

True, will be default now.

[WellingtonCatnip]

You already at home?

[JerryMcCarthy99]

Wouldn't that be "jesteś"?

[ErnstMosch1]

"are you going at home already" is not possible?

[JerryMcCarthy99]

It is indeed not possible. "at home" means that you are already in the home, and doesn't work with the verb "go". "At home" would be "w domu".

[Sue973408]

Could you translate this as "Are you walking home already?"

[alik1989]

I suppose so. Added now.