"The house has one window."
Translation:घर में एक खिड़की है।
"ke pas" can only be used in the possessive context in relation to living things.
For example, you would say "John ke pas kithab hai", which means "John has a book" For inanimate objects, "ke pas" means "near to", as in "Ghar ke pas gaadi hai", which means "There is a car(vehicle) near the house".
"ke pas" cannot be used to indicate possession by inanimate objects, so the right way to say it is "Ghar mein ek kidki hai", or "There is a window in the house", or "The house has a window".