Distance to our rented property for new construction on the plot

The view you have is not great, but still much better than I had imagined without the photo. That can be made bearable.

Provided that the utility room is not integrated into the heated area and the length of the boundary development does not exceed the legal requirements of 9m??, everything looks legitimate to me. The question is whether your terrace would have been allowed to be built so close to the boundary there. Were there not also distances required?

If all distances have been maintained, you can't do anything about it. Then everything is fine, even if you don't like it.

Legally, this probably cannot be a utility room at the border, but only a garage, which also cannot be used for domestic purposes. Ultimately, you only have two real alternatives. Either accept it or move in the medium term.

The question is whether your terrace should have been built so close to the boundary there.

Perhaps it is actually larger in reality than in the permit.

Looks bad... especially if it was different before.. Be glad that you are only tenants. Maybe you’ll find something new, nicer..