Depending on the layout it may be impossible to have spaces of exactly those sizes. The terms family room and den are usually used interchangeably but they were shown separately on the chart. The Embassy did not re-add the room sizes above to make sure they correspond with the total listed first. It could be, for example, that because of uncertainly over whether to use 5 bedroom or 4 bedroom standards for a standard family of 5 people post chose a different room size than envisioned by U.S. based architects. There is no firm response to this.
Apartment buildings are normal in Ankara.
In the United States, most families live in row houses or detached housing. At this point there is no preference for area. A topographical map showing where actual construction could take place would be helpful. This item should be clear. Please note, however, that the list of projects should be in some detail.