AHV and BVG cover 60% of the last income. With a pension plan, you fill the gap and can retire early.
Supply and demand determine the prices of houses and flats. A well-founded market value estimation is the basis for all price negotiations.
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.