Is a structural inspection engineer now mandatory in NRW? Who knows more?

Hello. I have heard that when building a single-family house in NRW, a reviewing structural engineer is now also required. Until now, a reviewing structural engineer was only necessary, among other things, for commercial buildings. Did I miss something?

No, nothing missed. A new state building code was developed over the years, maybe something like that was included, but the new state government completely shelved it before it could come into effect at the turn of the year.