Retaining wall to the neighbor on the boundary

Leave the area about 1m wide on the ground floor level facing the house and retain it with a (natural stone) wall, with herb and vegetable beds above, which can then be easily managed from the garden soil level. Fence or wall to the neighbor by arrangement.

So far, nothing has been modeled on the site.

According to the drawing, the garage twenty-one has been built up on embankment (?)

According to the drawing, the garage twenty-one was raised on an embankment (?)

That is not the garage. That is the side of the house.