Construction financing semi-detached house 130m2 healthy?

Hi,
I feel your situation. We, both 30 as well as a 9-month-old toddler, were at the notary last week and signed the purchase contract for the plot of land. With 5600 net, we want to take on 570k for a 165sqm detached single-family house kfw40+ on 650sqm. One day I'm full of anticipation and euphoric, the next day I'm sweating because of these amounts. I've already tortured hundreds of scenarios in Excel (used to be a banker and am now a controller) and still always have this rollercoaster of emotions.

For us, it’s also a once-in-a-lifetime opportunity and we really want it, so go for it. And what does my rambling bring you? Actually nothing, but you’re not alone.
Besides the mostly very good and valid advice in this forum, a post like this might be a nice addition :)

Tight but possible, I would say. I would probably also pay off the car loan. That way you have one less installment to worry about and more leeway. You don't have a vacation or does that fall under the category of leisure?

What about the kitchen in the new house? Where will you buy it from?

A second parental leave, high daycare costs again... That will be challenging again.

Hi,
I feel your situation. We, both 30 as well as a 9-month-old toddler, were at the notary last week and signed the land purchase contract. With 5600 net, we want to take on 570k for a 165 sqm single-family house KFW40+ detached on 650 sqm. One day I’m full of anticipation and euphoric, the next day I’m sweating at these amounts. I’ve already tortured hundreds of scenarios through Excel (was once a banker and am now a controller) and still always this rollercoaster of emotions.

For us, it’s also a once-in-a-lifetime opportunity and we really want it, so go for it. And what does my babbling do for you? Actually nothing, but you’re not alone.
Besides the mostly very good and valid advice in this forum, a post like this might sometimes be a nice addition :)

Thanks for that! It’s definitely also reassuring to know you’re not alone.

Tight but possible, I would say. I would probably also pay off the car loan. That means one less installment to deal with and more flexibility. You don't have a holiday or does that fall under leisure?

What about the kitchen in the new house? What are you buying it with?

A second parental leave, again high daycare costs... That will be challenging again.

Tight but possible, I would say. I would probably also pay off the car loan. That means one less installment to deal with and more flexibility. You don't have a holiday or does that fall under leisure?

What about the kitchen in the new house? What are you buying it with?

A second parental leave, again high daycare costs... That will be challenging again.

We haven’t explicitly divided the savings into categories except for the maintenance reserve. So saving for holidays and everything else is included in the €650 or also in annual special payments/bonuses we receive. Then you have to see whether you put these into extra repayments, invest them, or just put them in the savings account.

Except for the kitchen, we are taking all the furniture with us. The kitchen will be paid for from savings. Until then, we could save quite a bit more.

Hello, the price is fixed. We are also aware that it will be tight at the beginning. But from 2026 onwards, it will be at least €400 more and from 2030 €800 more salary.

these are all TARGET values, a controller likes to calculate with plans^^ Ever thought about general inflation? Ever thought that the older the children, the higher the costs? That's how controllers are^^

The 8k we can additionally save up until moving in and thus reduce the monthly costs.

Sure, instead of investing the money, pay off the gas guzzler first. Makes sense.