There are more than 20 towns and villages called Neustadt in Germany, meaning “new town”, so they get an affix to distinguish one from the other. Neustadt an der Weinstraße is situated on the German Wine Road, a route traversing the wine region of the Palatinate region in the southwest of Germany. It is surrounded by vineyards to all sides, and there are traditional wineries and wine-growers on every street and on every corner. These are traditionally homesteads in the middle of the village, several houses and buildings surrounding a courtyard. They usually have a large gate as the main entrance to let tractors and in former times horse-drawn carriages in.
Often they have a smaller door set in the larger gate for everyday access. When the building purpose is changed the arches are often kept because of the structure of the wall as well as for looks.
In this case the arch was filled in except for a door and a window.
pictures imperfect blog 