Attic conversion with a 25-degree hip roof - a sensible project?

What kind of pipes are those under the roof? Daylight spots?

Hardly, this thing is an imposition. I can make out a bedroom, an office, a children's room, a living room, kitchen, bathroom, utility room, and stuff. What I don't see is where you would integrate a staircase. At most in the kitchen, which I can't really identify though. What are those pipes under the roof? Daylight spots?
50K? Let's see: insulation, roof windows, heating, drywall, putty, floors, walls, electrical, painting, staircase. Mmmh, I’m not optimistic about that.

Well, if it weren't for the little word "if": ... and this "if" is already a first-class "but." A 1 will still have to be placed before those 70. When you - especially after the shock of width following climbing through the floor hatch - stand in such a huge storage room, you get a feeling of infinity and can imagine like nowhere else that the realtor's spiel "everything is possible" must have been invented here. But as soon as the last link of the meter stick is unfolded, the dream receives its death kiss. Reality is really a bitch.

So I would also see significantly higher costs for the attic conversion, and then these three pipes already add further restrictions. The questions regarding the floor plan would be:

1. What is the function of the room at the top right in the corner? From left to right it is Bedroom 1, Bathroom, Bedroom 2, and then the other room.
2. What is the function of the room in the center bottom? The left room is probably the kitchen, right? And the one next to it? Size?

Theoretically, one could consider the three bedrooms upstairs, then the question whether to open the kitchen and "separate" it at the corner of the wall to create another room (pantry and utility room). Next to that possibly the room as an office/guest room. But since no dimensions are visible, it’s all a bit uncertain. And the question is whether the compromises wouldn’t become too big!?