Before marriage, was the house invested by * * * the joint property of husband and wife?

First, if you bought it in full before marriage, the house is your personal property. Marriage does not change the property right of the house.

Second, if it is part of the down payment before marriage, and the house is bought by loan, the two parties will jointly repay the loan after marriage (as long as you use your own income to repay the loan after marriage, it will be regarded as * * * joint repayment, because your income is * * * and the real estate), then this issue is controversial now. It depends on the down payment ratio and the time to obtain the title certificate, but also on the region. Local courts have different views on this issue. If the relationship with the real estate is identified as * * *, the other party enjoys half of the property rights, and only needs to return half of your down payment and pre-marital repayment to you. If it is recognized as your personal property, you need to repay the other half of the loan after marriage.

If you just plan ahead, then I suggest that your parents repay the loan, and every time it is in the form of transfer, that is, from your parents' account to the repayment account. In this way, the down payment is paid before marriage, and the loan after marriage is paid by the parents, which has nothing to do with the other party.

The length of marriage has nothing to do with pre-marital property.

After a few years of marriage, it became the same property. That was before the marriage law was revised, and it has been changed for many years.