Or buy a new house, within 90 square meters, with a down payment of 90 thousand, and you can leave some money for decoration or something;
To buy a new house of 100 square meters, the down payment should be more than150,000. 1.2 million is basically impossible.
To sum up, those under 90 square meters are safer.
Let's find a property with a suitable apartment type and a reasonable space utilization rate. A big house is not necessarily good. ?
Answer supplement:
Look at the table below, which is suitable for your mortgage and paying proportional interest. 70 square meters, 20 years.