Yes, it is simply nice in the south of Munich. Here, economic strength comes together with beautiful nature and quality of life. That was also the case for me during the 5 years in Switzerland. Back then, I also looked for apartments to buy in Lucerne. Around 700k CHF for 60m2 2-room built in 1995 (and without lake or Pilatus view). I would reduce the repayment and keep the option of adjusting the repayment or making significant extra repayments. As a teacher, there are regular salary increases; in the industry, being around 40 is a good age for new career levels, which helps in the future. Inflation with corresponding collective wage increases also comes on top. The "buffer" is the 400k€ that one might possibly inherit. Since the parents have already contributed part of the equity, they will probably also help if an unplanned special expense occurs, meaning the house will not immediately end up in foreclosure. In the worst case, selling and buying "something smaller." The biggest risk would be a massive price decline in real estate in the Munich area. That can of course happen, but what is the probability?