Is this correct: "watashi no uchi wa koko desu." and "roera koukou wa koko desu."?

Question:

Or is it used with "ga" like "watashi no uchi ga koko desu."???

Answer:

I think you have to say what you are trying to say in English, or there is no accurate answer.

>"watashi no uchi wa koko desu."
Correct if you want to say "My house is here."

>and "roera koukou wa koko desu."?
Correct if you want to say "Roera high school is here."