After 10 years you will have to calculate with the first renovation costs for your house. Plan the measures early and save money.
Sooner or later, condominium owners have to deal with expensive renovations. That is why it is worth having a renovation fund.
The more solar power you consume, the faster your photovoltaic system pays for itself. With a storage system, you increase your self consumption.
Supply and demand determine the prices of houses and flats. A well-founded market value estimation is the basis for all price negotiations.