Is a holiday home regarded as watn-e-asli?

A person lives in Isipingo Beach and has been living in Isipingo for more than 20 years. He has a house and owns and runs two businesses in Ispingo. He still lives and works in Ispingo Beach for most of the year. This person bought a flat in Surat, in a street where his grandfather used to live, and passed away many many years ago. He goes to the flat once every few months and his period of stay in Surat varies from less than 14 days upto 20 days. When he is not in Surat, he gives out the flat on rent to people from South Africa who go to Surat for holiday or medical treatment. When he purchased the flat he made intention that due to it being in the area where his ancestors used to live, this will also be his house.

1. Will Surat become his وطن اصلي while Ispingo Beach remains his وطن اصلي? Thus he will have 2 وطن اصلي and he will never be a musafir when he goes to Surat.

2. Can he read full Salaah in Surat if he is only staying there for 10 days in that particular journey, because he has an intention to return to Surat for another week or two after three months and this is the home town of his ancestors (including grandparents).