If a person has homes in more than one place, does he become a traveler (musafir) when he goes to these places?

A place where a person intends to stay for fifteen days or more, apart from his original hometown, is considered a "vatan-ı ikamet" (place of residence). There is no difference between the vatan-ı ikamet and the vatan-ı aslî (original hometown) regarding the performance of religious duties. In other words, a person in his vatan-ı ikamet cannot benefit from the religious concessions granted to travelers (Ibn Abidin, Radd al-Muhtar, 2/131-132). According to a view in the fiqh sources, if a person has homes in two places and uses both, he is considered a resident (muqim) in whichever he goes to (see Ibn Abidin, Radd al-Muhtar, 2/131-132; Bilmen, Ilmihal, 163). Accordingly, a person who has a house in a town is not considered a traveler when he goes there. According to some contemporary approaches, a person's summer house is also regarded as his original hometown. Therefore, in places where a person owns a summer or winter house or a timeshare, he performs his prayers in full.

Source: T.C. Diyanet İşleri Başkanlığı, Din İşleri Yüksek Kurulu