Property boundary marker removed, restore it yourself?

Hello everyone,

briefly explaining the title: a construction road was created on our undeveloped property for the adjacent properties behind it. In the process, two boundary markers (wooden stakes with neon markings) were removed or buried. Two companies were present, neither of which claims to be responsible, and now it’s urgent. We only noticed it today during the inspection of our property, and the earthworks are scheduled to take place next week with the sand layer to be laid.

Now I am feverishly considering how I can at least restore 2 boundary points. I actually have all the necessary data: I have the exact coordinates of each point, I know every angle and every distance. But is it even possible for me to determine even a single point 'on my own' and stake it out with a tolerance of 10cm? ("It used to be done with a tape measure") Or do I now have to bite the bullet and invest 800€ and wait for a surveying office to have time?

Should it be built directly on the border at all, or what is this about?

Correct. The carport is to be built directly on the boundary. However, it should not come down to 10cm.

Rough staking out, if you dare and your earthworker has no objections, you can easily do it yourself. In any case, more needs to be excavated all around – a few cm +/- doesn’t matter initially.

Precise staking out, especially for boundary construction, I would definitely have done by the surveyor.

I (trained as a surveyor) have laid out our rough house staking myself using a measuring tape, marking paint, and [BOGENSCHLAG]. I must admit, it is not a boundary construction but still completely sufficient for excavation. Educate yourself on what a [BOGENSCHLAG] means or include a sketch. The boundary lengths to the now missing points should be recognizable from it.

Point 1 & 2 are gone

From point 3, draw a circular arc with a 10m measuring tape where point 1 could approximately be. Do the same from point 4 with 15m. Where both circular arcs intersect in a cross is your point 1. Do the same analogously for point 2.

I will now omit details such as how it could be done even more precisely.