Is a Bausparvertrag useful when buying a home in Germany?

A “Bausparvertrag” is a type of mortgage loan that is still quite popular in Germany and is provided by building societies (“Bausparkassen”). These are complex products that many people (including unfortunately most mortgage advisors) don't understand well. They can be quite beneficial, for example if you want to rule out any interest risk but also problematic. At Hypofriend, we, therefore, have built special calculators for this product that help us to evaluate with you if the product makes sense for you.