The plan is essentially a single-family house with a granny flat. It might become a two-family house in 30 years, when the children have moved out. I will still inform myself about the requirements for a single-family house, so this is a point that should be included in the tender. Thank you! The specifications according to the development plan are quite flexible. Two stories, the roof has no restrictions except for neighboring development if applicable. The plot is quite large and the permitted areas are more than sufficient.