If your net income rises then your mortgage payment will be a lower proportion of your net income.
Let's assume 2% inflation in your net salary.
If your net salary today is €3,000 a month, it will rise by 22% to €3,660
So your repayments of €1,000 per month will fall from 33% of your net salary to 27%.
If your salary rises by 5% a year, that will compound to 63% over 10 years or €4,900.
Your €1,000 falls to 20% of your net income.
How does price inflation affect this?
It doesn't affect it directly. However, it's assumed that net salaries will rise at or around the inflation rate.
How do house price changes affect this?
Again, they don't really.
However, if your house doubles in value over the next ten years and rents double as well, you will feel much better off.
On the other hand, if house prices halve and rents halve, you will feel much worse off.
Another important issue to consider is that your €1,000 repayment comprises interest and capital.
If you have 20 years left on your mortgage of €160,000 today, you are paying €600 interest and €400 capital.
After 10 years, you will have reduced the capital balance to €98,000 so the monthly interest element will be reduced to about €400. This is very important as the interest element is the true cost of your mortgage. The capital repayment is a form of saving.