Yesterday I had an exam of Italian. I was asked to write a letter, so I wrote it. After the teacher qualified the exam, he said that writing la tua casa was wrong and that the correct way was casa tua.
The letter was about setting a date so at the moment when you set the place I asked to the person:
Passo alla tua casa o ci vediamo direttamente al concerto?
He did not explain to me why and I have not found anything on the web about this. Any help would be appreciated.