Assess slope

High ongoing costs. Suitable maximally in passive houses. Even we have not installed a classic air-to-air heat pump.

Read up on the topic yourself and browse this forum. It has been discussed several times.

Air-water heat pumps
Work with a refrigerant cycle and compressor. This way, enough energy for heating can be generated even at slight sub-zero temperatures.
The room temperature is usually supplied by a water-based system, typically underfloor heating
(Water is a better heat carrier than air)

Air-to-air heat pump draws in supply air (without refrigerant and compressor). Usually uses heat recovery (Wärmerückgewinnung) to warm the supply air. If that is not enough, additional heating is done with electricity (hair dryer).

Higher acquisition costs vs. higher operating costs.

also Bavaria. I also see a 5 in front with a finished outdoor area

Upper Palatinate can already be cheaper than Bavaria or the Franconian metropolitan region. You can tell because in some places you can still get a half-liter for €2.30. The construction site is still being kept secret (for whatever reason), but especially if it is a bit further from Regensburg or Nuremberg, the prices go down – proximity to the Czech Republic also helps. However, I would still not expect less than €2200/m², so with 130m² on the ground and upper floors (€286K) + basement (€80K) + incidental construction costs, roughly €380K - €400K. The garden is not yet laid out, but maybe it can initially remain a slope and doesn't have to be fully terraced.

The plot is 28 meters long and has a height difference of 3 meters, with the slope being steepest at the beginning and leveling off towards the back. We wanted to build with a basement anyway, the house should have 140-160 sqm of living space and a

we have just over 2.5m and if the soil is not complete rubbish, that should not be a problem. Since our slope is facing completely south, we have no daylight in the basement because we need the south side for the terrace...

Upper Palatinate can already be cheaper than Bavaria or the Franconian metropolitan region. You can see that because in some places you can still get a half-liter beer for €2.30 . The construction site is still being kept secret (for whatever reason), but especially if it is a bit further away from Regensburg or Nuremberg, the prices go down - proximity to the Czech Republic also helps.

However, I would still not expect less than €2200/m2, so with 130m2 on the ground floor + upper floor (€286K) + basement (€80K) + additional construction costs, somewhere around €380 - 400K. The garden has not been laid out yet, but maybe it can just remain a slope at first and does not have to be fully terraced.

€2.30 for the half-liter does not match the land price. Just for comparison, the land would cost less than €50K here. Also in Bavaria.

2.3 € for the half doesn't match the land price. Just for comparison, here the land would cost under 50k. Also in Bavaria.

And in Nuremberg & Erlangen, the 1000€/m2 is now being clearly exceeded ... at least that's how it's being advertised. See e.g. Immoscout 113825920

Yes, it is supposed to be expensive there. The strange thing is, the craftsmen here often go to Frankfurt, Munich, or even directly to Switzerland. Very few go to the Nürnberg area. Yet it only takes them 1.5 hours to get there.

Oberpfalz is partly considered structurally weak. Where a half costs 2.30.