Floor plan design for a modern new semi-detached house with 6m ceiling height and 239 sqm living area

Isn't that a problem? What does the architect say about carrying out the demolition? Surely the neighboring house does not want to be damaged. Have you ever lived in the semi-detached house yourself or have you now bought it as a plot?

Did you buy a house with a bunker?

Take a look at the neighboring buildings. Not directly, but the many houses in the neighborhood where single-storey construction also applies. What about a protruding basement? Is it permitted there to build single-storey plus basement? Then you have some options, for example, split-level is an option. Certainly, some have implemented that already who have individually remodeled their semi-detached houses there. If it is an old development plan, for example from the 60s, that is also legally binding. However, the houses are partly much older; the semi-detached houses from the pre-war period could be freely remodeled. How does Hanse Haus regulate that? Also with building inquiries? Do you know the neighbors? I would polish the doorbells and inquire whether they had problems with the building authorities with their implementation.

All right. So far, we have only informed the architect about which and how many rooms we want and that we want high ceilings in the living area. We have deliberately left everything else up to him. Now we are having a second version of the design created as well.

I bought the plot including existing buildings. A neighborhood approval for the new construction has already been obtained. According to the architect, the building field is 12x15m and may be fully built on. Whether an outstanding basement is allowed, I do not know. However, I assume that nothing speaks against it as long as it stays within the specified building field.

if you don't build the entire partition wall, but keep a distance of 3 meters

I didn't mean that. Not the approval, but the difficulties. You showed an excerpt from Google Maps - if you know a bit about Hamburg, you quickly find the property or the semi-detached houses from the 1930s. The house is even pictured in the Hamburg archive with its half-timbered construction. All the old houses in the settlement have prominent basements. Many of the neighbors with the same house have already renovated and made use of the basement by building a split-level. By using split-level, you also achieve higher ceilings. Just visit your street and see how they implemented it. In my opinion, there are many more possibilities than the architect has drawn. Additionally, a tip: if you don't build up the entire partition wall but keep a 3-meter distance, thereby generating an interior courtyard, then you also have more possibilities to place windows on the north side. Although the floor area decreases, in my opinion that is compensated by the use of the upper floor with windows. Maybe it's the wrong architect after all? Someone mentioned it here at the beginning.

Maybe it's the wrong architect after all? Someone mentioned it here at the beginning.