Does the cadastral excerpt contain surveying information?

Hello sauerpeter,

A cadastral extract usually refers to an excerpt from the property map. This shows, among other things, the parcel boundaries and the buildings to scale (mostly 1:500). However, the map extract contains no information about its origin. The accuracy ranges from one centimeter to several meters. But even if your boundary points have coordinate cadastre quality, i.e. the highest accuracy, the map extract only provides dimensions with graphical accuracy, i.e. a maximum of 10cm. Without clearly identifiable points, e.g. corners of buildings that have not changed since the cadastral measurement, you will hardly be able to find boundary points. You can also get the survey sketches from the cadastral office. These are non-scale sketches with the exact measurements noted, but they are hard for laypeople to read, cost a lot of money, and may not help you further because there are so many possibilities for property surveying depending on how many years of cadastral measurement your property has undergone. Here you can see how the boundary points were recorded at the time of the survey, but whether these were removed by construction work or otherwise, the cadastre does not disclose. Ask the neighbors if they know the boundary points (by the way, there are many more ways to mark a boundary point than boundary stones and the metal markers described above). Otherwise, you probably won't get around a boundary survey by a surveyor.

First of all, thank you for your many answers. The plot is located in the state of Brandenburg. There is an option online to use the Brandenburg Viewer. If we enter the address there, there are such small white dots on the neighboring property. They are always on the corner and are supposed to indicate that the plot has been surveyed or is. I called the office, but the lady said quite quickly "Yes, yes, all plots are surveyed." From a conversation with the neighbor (other side), however, I learned that her plot, for example, is not surveyed and they privately commissioned a surveyor who was only supposed to determine the boundary to our plot. He did that and hammered a massive iron rod in at the front spot. I am therefore not quite sure if they are really all surveyed. There is a publicly appointed surveyor living in the village. She will surely only get the info from the cadastral office, right? Or does she have access to all surveying documents, no matter which plots, which location, etc.?

Hello sauerpeter,

which surveying documents "your" surveyor has access to depends on her and the cadastral authorities she works with. At "my" cadastral office, a publicly appointed surveyor can apply for online access and can thus view (or download) surveying documents for any property in the cadastral district. However, it does not matter to you as a customer how she obtains the documents.
To build a fence on the boundary, you need a boundary notification. This can be very simple but also highly complicated. It depends on the history of your property. If there are no small white dots at one or more corner points of your property in the cadastral map, this is an indication that the boundary point is not marked. Then, no matter how long you search, you will not find any boundary markers. Conversely, if white dots are present, you cannot be sure whether the boundary markers that were once documented in some surveying plan are still there.
First, it must be clarified whether the boundaries of your property have been determined, i.e., ever surveyed on-site and recognized by the parties involved. You can obtain this information from the cadastral office. I am not familiar with the fee schedule in BB; with us, this information is usually free of charge. If the boundaries are not determined, there is no way around a publicly appointed surveyor or the cadastral office. If they are determined, the cadastral evidence must be transferred to the location. For someone unfamiliar with surveying, this is only possible in rare exceptional cases. Why not get an offer for a boundary notification from your publicly appointed surveyor and/or the neighboring surveyor?

Ahh, that is now a new clue for me. Because I thought the white dots at the corners indicated surveying or that the respective property was surveyed. Ok, now the whole thing is seen in a different light.

I will call the publicly appointed surveyor from the town, let's see what she says. Thank you for your help.