Qasr Salaah and Two Homes

Q: Is qasr salaah wajib on a person who travels from one house of his to another house of his which is 77 kilometers away?

A: If the owner of the two houses lives in both houses with his wife/children, and spends more-or-less equal time in both places where the houses are situated then travelling to these homes will not render him a musaafir, so he will not make qasr salah. But if one is his permanent home and the other a holiday home which he visits occasionally then he has to make qasr when he travels to the holiday home if the distance between the two houses is 77.7 kms.