What is the approximate cost of building a swimming pool in the basement?

Cool implementation. With a top screen and a 4K projector, it's the best. Then you'll never watch 65" again.

... I am currently the sole earner, including child benefits and [Baukindergeld] we then have about 7,[sic]000 net per month (without bonus). ...

To my knowledge, [Baukindergeld] ceases at a household income of 90,000€ (where the "," above is either the wrong or a misleading thousand separator).

You should be well above that ...

Where does the [Baukindergeld] come from then? :)

To my knowledge, the Baukindergeld is no longer granted from a household income of €90,000 (where the "," above is the wrong or a misleading thousand separator).

You should be well above that ...

So where does the Baukindergeld come from then? :)

We have three children, so the limit is €120k (net taxable income, mind you, i.e., after deducting all advertising costs). Our BKG was approved in April.

Best regards

Ah ... ok. The info regarding the three children was not present to me :)

I thought there might possibly still be a way that I had missed, since we couldn’t apply for [Baukindergeld] due to income :(

Great cinema by the way! A sensible use. You can always upgrade it later if the requirements increase ...