Cistern! Don't want one, but being forced - experiences

I will choose the 5200L variant. Where would you place the cistern in the garden?
So far, it was planned to place the cistern at the bottom left, as close to the house as possible. However, since the hose would have to be dragged 10m toward the garden to water it, we considered placing the cistern directly in the garden, see red rectangle. It would be about 80cm from the neighbor’s property, as we still want to plant a hedge there.
According to the construction contractor, this should technically not be a problem.

Any opinions?

It depends on where the pump or the domestic water system is a) IN the cistern or b) in the HTR. In case a) it does not matter where (mEA). In case b) it does matter due to possible suction length.

Keep in mind that a cistern is more than just the manhole cover. You have to excavate larger and refill again. As far as I know, you are allowed to place cisterns within the 3m area. I had also considered this for our place. The cistern must also be positioned so that the truck can drive up to the hole. When thinking about this, you should also include garden sheds, which you will certainly need to drain into the cistern. In principle, I would place the cistern so that the paths are as short as possible. For garden irrigation, you can then install a pipeline system with an additional tap in the garden. That can also be done well as a DIY project.

For around 150 EUR, you get a Gardena wall hose box L with 30m hose length. You don’t have to "carry" anything. Better to hide the ugly concrete cover than have it right in the middle of the garden. Especially since the cistern will be full in winter and empty in summer. In summer, you easily need 4,000 liters for a 200m² garden (mostly lawn), so 16,000 liters per month. In my old home in the heart of Lower Saxony, it rains 84mm in July. With a 100m² roof, you catch 8,400 liters. By the way, this is something to consider if you store/infiltrate your rainwater on your own property. No rainwater fees apply. For an average single-family house, that can quickly be 200, 250 EUR per year. Ultimately, municipalities save on expensive rainwater sewers... what can you do.

No rainwater charges are due.

That is not correct. Depending on the municipality, the relevant areas are calculated at a lower rate. For example, with us, a factor of 0.5 applies if they have an overflow. Paved areas as well as gravel are also included.