Land purchase through a bidding process - What is the final price?

Whoever auctions the property will also build on it quickly - that is the intention of the community... not stupid either

We also acquired our property through a bidding process. It previously belonged to the church; the bidding process was then handled by the Sparkasse to avoid any appearance of nepotism.

We bid what the property was worth to us. Period. No revisions were possible.
We determined the price through a process typical of eBay: xxx,437.52 EUR. It is also stated as such in the purchase contract. Not that someone would spoil it for us with a bid 1.52 EUR higher.

After 4 weeks, we received a call from the Sparkasse: the highest bidder had dropped out; you are next. Do you want to buy?
Whether the "person above us" bid 40,000 EUR more or 200 EUR? No idea. And maybe the next person "below us" only came in with a bid 10,000 EUR less.

For this region, the property is in a very desirable area. My husband doesn’t come here, and I said from the start: forget it, we’ll never get anything!
Lucky us, and from today’s perspective, the price was absolutely justified.

My concerns are that in the end, in case of the award, I will spend significantly too much on the property because I have no idea how the demand will be. Currently, we are calculating +10% according to BORIS Hessen.

Approach the matter with a different mindset. The actual question is what this property is worth to you exactly. That is the amount you bid. If someone bids more, it wasn't worth it to you. If you are the highest bidder, you have not spent more than it is worth to you. The second-best offer and how much or little it was below is completely irrelevant.

We also acquired our property through a bidding process. It previously belonged to the church, and the bidding process was then handled through the Sparkasse to avoid any appearance of nepotism.

Nepotism between the state and the church would also be "purely coincidental or completely made up," but what really surprises me is that the church sometimes sells land instead of leasing or exchanging it.

Off Topic:

The real question is what this property is actually worth to you. That is the amount you bid. If someone offers more, it wasn’t worth that much to you.

The idea of value is anyway neglected in today’s society. People tend to focus more on “stinginess is cool” and bargains. The main thing is cheap. Even a normal price is seen by some nowadays as a rip-off. Or a mafia price. But then adding a huge markup...
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... sometimes the bidding process fits quite well for real estate.

Nepotism between the state and church would also be "purely coincidental or made up," but what really surprises me is that the church once sold land instead of leasing or exchanging it.

Yep, that surprises me too. Unfortunately, we weren't that lucky. So it ended up as a leasehold.