chez mon ami
You would say "la maison de mes amis" in French.
je vais chez mon copain/copine
à la maison de nos amis, chez nos amis
To say "the house of" in French, you would say "la maison de."
amies
The house is "la maison" (fem.) in French.
To say Dog House in french is Un Maison du le Chein
"House of" in French is translated as "maison de".
Nos copains.
The blue house is "la maison bleue" in French.
At the house of X is "Chez X" in French You can also say "Ã la maison de X".
chers amis is how to say dear friends in French.