No additional costs except painter, flooring, and kitchen. However, you have not yet seen the construction performance description. You might want better bathroom equipment, a larger tile backsplash or higher tiling in the bathroom, or high-quality tiles and edge profiles. Every extra could mean a huge additional cost; here it means for you to inquire and negotiate all possible additional items in advance, e.g., more sockets. Since you will be purchasing a house from a developer, this means higher incidental purchase costs – property transfer tax! You will have a communal heating system – many don’t like communal property because you are always tied to the neighbors. It would be interesting to know whether it is a freehold property or only a notional division is present. It is a starter property, which offers more quality of life similar to an apartment. I myself would have an ERH and want the family atmosphere in the community. But not everyone thinks that way, as you can also have a lot of trouble when living in close quarters. If you want to have more opinions from other users, you can set the search options on is24 here. Regards, Yvonne Edit: dashed lines often indicate additional services