Construction project according to §34 Building Code (neighboring construction)

Dear Sir or Madam,

I have a question about a construction project according to §34 Baugesetzbuch (Nachbarbebauung).

A fully developed plot is being sold (there used to be a house on it, which was demolished).

Now the exposé states: 855m² open space and design possibilities for a personal dream house.... The development is carried out as infill development according to §34 Baugesetzbuch. A maximum of 2 residential units are possible. But what does the term in parentheses (NACHBARBEBAUUNG) mean??? Am I now restricted and only allowed to build like my neighbor in the same construction style?

The plot is located on a federal road.

There is no development area in the sense of a settlement, houses are built along the road.

Construction project: podology practice + own use (residential) 1.5 floors, practice downstairs, living upstairs.

If someone has information for me, I would be very grateful.

A building area in the sense of a settlement does not exist there; houses are built along the street.

First, make sure that building according to §34 is actually permitted. The exposé may contain many things that do not have to correspond to the truth.

The plot is located on a federal road.

That could also be a problem. First clarify whether the access to the federal road will even be (re-)approved.

So am I now restricted and may only build like my neighbor in the same building style?

That depends on what you understand by "same building style." §34 of the Building Code states:
(1) Within the contiguous built-up areas, a project is permissible if it fits into the character of the immediate surroundings in terms of the type and extent of land use, the construction method, and the plot area to be built on.
Type of land use: If only residential houses are in the immediate vicinity, i.e., no commercial use at all, a podiatry practice could already be difficult.
Extent of land use: This includes building heights and dimensions. If the surrounding houses are all 10 m high, you may build neither 3 m nor 13 m high. If the surrounding plots are only built up to about 20%, you may not build more than 20% of the plot area either. The extent to which deviations are allowed must be coordinated with the approval authority.
Construction method: If all the surrounding houses are detached, you must also build with the setback. If there are only terraced houses, yours must also be a terraced house.
Buildable plot area: If all the surrounding houses stand 3 m from the street, you must also keep a 3 m distance. If the plots are only built up to a depth of 20 m, you may not build further.

Go to the local building consultation office of the municipality or building permit authority and ask what is emphasized there.