Then I would contact the provider and ask accordingly. After all, that's what they are paid for. A small exposé is listed on the construction company's homepage. We can't really tell you anything definite about prices here. A pellet heating system will be installed. Advantages and disadvantages can be easily googled.
For the following trades, it is possible to provide own services: tiling work, painting and wallpapering, flooring work, and interior doors. Own services must not hinder the construction process. If own services are desired, this must be clarified early with the general planner.
That is also not necessarily common and speaks in favor of the company. This can save a lot of money. Painting work is apparently already included. That means you get some money back if you take it on yourself. But only the absolute essentials are included. White textured wallpaper... You just have to like it. I don't like it at all and would outright cancel the execution and discuss alternatives / do it as own services. Wooden windows - I am not familiar with them. However, they almost certainly require more maintenance than plastic windows. Visually more appealing though. I also think they are higher priced. Parquet flooring €43 / sqm. Skirting boards are also already included. Sampling would also be an option. It is not described anywhere whether parquet has to be taken. So tiles or vinyl might also be possible. Tiles up to €46, but only standard laying. For 60x30 tiles or similar, there is a surcharge. As it reads, the laying is already calculated in the prices. I would inquire about that again in more detail. How many sqm/€ the material may cost. Interior doors are standard. Roller shutters have straps. In my opinion, no longer up-to-date in 2020. Sanitary equipment is the absolute minimum. Not even a tiled shower is included. Electrical is also very sparse. Six sockets per bedroom are not necessarily many. Only one outdoor light is included, and it has to be coordinated with the other builders so that a uniform appearance is maintained. Satellite system is also not included. That should cost approximately €300-400 max per party. What is missing are LAN sockets – maybe that is the telephone connection
empty?! socket. Follow up with the provider. Why empty? A ventilation system will be installed. That is good.
There is not much to read out of it. As far as I can see, they have not been building for long yet and everything can still be sampled. Clear statements can only be made by the provider.