House construction and sale - current residential property

Hello,
We are quite at the beginning of our planning. I will try to present it BRIEFLY. We currently live in a semi-detached house (ownership) and want to buy a plot of land for construction. However, the thing is that we have little equity and would first have to finance the land. For the house construction, we would need the proceeds from our current house. However, we do not want to move into a rental apartment in between. What options are there? Is it possible to first take out a second monster loan for the house and land and later include the proceeds from the current house? Building from a rental situation would probably have been easier. Maybe someone here can share their experiences? Thanks and best regards

The magic word is Zwischenfinanzierung. What you believe to have as proceeds from the house sale is additionally financed to the remaining amount on a variable basis, meaning it can be terminated/repayed at any time and without ongoing repayment. This just requires that you can pay the planned interest for this loan additionally from equity or current income.

What you believe to have as proceeds from the house sale is additionally variably financed on top of the remaining amount, meaning it can be terminated/repaid at any time and without ongoing repayment.

Or a bullet loan for, for example, 2 years.

Is the semi-detached house currently encumbered? If yes, how much? What repayment rate?

Why is keeping and renting not an option? The advantages are clearly obvious here... Whoever does not necessarily have to should currently not sell a property either.

Why is keeping and renting out not an option? The advantages are clearly obvious here... Whoever doesn't absolutely have to should not sell a property at the moment.

Why? What advantages would it have? For example, in the case of being free of encumbrances, taxing the rental income at the marginal tax rate and adding the operating costs on top?

Apart from the financial aspect, I simply do not see myself as a landlord, for example. I just have no desire for the stress that can arise, which is why I would not recommend it to anyone as a better alternative - and certainly not without consulting an expert.

Renting out a single property with a single residential unit is risky. Rent defaults, renovations, repairs, etc. hit hard.