Buy a single-family house - mortgage a condominium unit and sell it later?

Yes, I am afraid of that too. I prefer to finance a bit more variably for 1-1.5 years and only sell my condominium once the new place is ready. I want to spare myself that stress

That’s how we will do it too; once the new place is far enough along that we have a guaranteed handover date, we will sell our current house. You never know if there might be another stop during the construction phase. I also don’t feel like trying to somehow cover every possibility in the purchase contract.

We have now taken out a bridging loan until the house is sold.

It has already saved me a lot of stress, even if I pay a bit for it. Nerves and time are simply priceless..

We have now arranged a bridging loan until the house is sold.

Did you get good terms for the bridging loan? Financed with a variable rate? Did the bank count the house as equity?

Did you get good conditions for the interim financing? Financed with a variable rate? Did the bank consider the house as equity?

We took out the interim financing with a variable rate, interest 3%... not great, but what can you do ;)

The house was not considered equity in that sense, but only that we received the interim financing because the money will be available after the house sale. After the sale and after paying off the remaining debt plus early repayment penalty, we will have about 230k left. Our interim financing amounts to 55k, which was counted as equity.

Our interim financing amounts to 55k, which was counted as equity.

I don't quite understand that.
Are you only financing 55k variably? What are you doing with the rest? How do you want to transfer the 230k to the new property?

Our case:
Land with ancillary costs - 180k
House with ancillary costs - approx. 520k
Equity - 75k

Condominium after sale: approx. 400k - approx. 70k remaining debt = 330k (no prepayment penalties, as the loan can be paid off in March '22).

I thought I had to finance the entire 330k variably for the transition...

I thought I have to finance the entire 330k variable for the transition?

You have to. Otherwise, you will have a problem paying your bills if there is no money in the account.

I don't quite understand that. Are you only financing 55k variable? What are you doing with the rest? How do you want to transfer the 230k to the new property?

We would have also gotten the home loan without having to sell the current house. We are financing 330k fixed and 55k variable. We are contributing another 50k as equity, of which 25k is the repaid portion from the land and 25k from the overnight money account. We will pay off the 55k as soon as the house is sold. We are holding back the rest of the 230k minus 55k, so 165k, as a buffer for the kitchen, outdoor facilities, and possibly other unforeseen costs. Anything left over, we would either occasionally use as special repayments or I will finally get my dream convertible :D Edit: our costs are just quite different from yours, for example, our land only cost a little over 1/3 of yours.