Floor plan check for new single-family house with basement

Carport I have roughly marked on the attached overview.

I thought you need 2 parking spaces. Where is the second parking space?

I thought you needed 2 parking spaces. Where is the second parking space?

The second parking space is in front of the house

Is it really still single-storey? Have you done the math?

Is it really still single-storey? Have you calculated it?

At least that's what the architect said, since this is of course a central point in the planning for us. Our current house is similar, but in the end, you really have to calculate precisely. I will take this up again in the next meeting.

The architect at least said so, as this is naturally a central point in the planning for us.

Whether your federal state is a three-quarter federal state is just as quick a glance into the state building code for you as it is for us - only with the difference that it is your interest and we are only giving advice here on a "voluntary" basis.

Honestly, I did not understand my answer as someone from the forum having to verify this for me. According to what I read from the Hamburg BO, the 2/3 rule applies here. However, our current house does not fit into this calculation either (built in Hamburg 9 years ago), so I would have to ask how the calculation is made and whether there are possibilities for exceeding, or if there is an error here.