Price difference between windows vs. fixed glass element and masonry?

These window seats are never used at least 50% of the time anyway.

I converted a typical window seat or "flower window" from the 60s into such a window seat (size approx. 70x160cm). As an adult, I have only sat there during the conversion. But the children love it – with cushions, blankets, and a book or watching TV.

I converted a typical window seat or a "flower window" from the 60s into such a window seat (size approx. 70x160cm). As an adult, I actually only sat there during the conversion. The kids love it - with cushions, blankets, and a book or watching TV.

How exactly did you do that? Just install a new fixed glass window and that's it? We also still have an old flower window here with a very deep windowsill.

Now the question is whether that is not an energy disaster if the window is on the outside wall?

Thank you very much!

if you want to, do it. Later bodged furniture in front of a floor-to-ceiling window looks sh***. My nephew has such a window seat, it is used a lot and looks great. Try to negotiate the price a bit, but please keep in mind: If the deal isn’t fun for the other party, it won’t go well. I regret having skimped on the venetian blind in the bathroom (venetian blinds everywhere else). We thought a simple privacy screen would be enough. Now I’m struggling with an internal privacy screen. Nothing half, nothing whole.

how exactly did you do that? Just have a new window installed with fixed glazing and that's it?

Exactly like that. Then I laid a square meter of parquet on the "windowsill," made the sidewalls nice, and that's it. It's like a small bay window. Of course, the "bay window" will still be insulated from the outside. In that respect, it is very similar to a modern new building with windows flush with the facade. And energetically, the disaster was already there before, when there was only the lead-stained glass single glazing ;-)

We are also on Pinterest and had also flirted with the idea of a seating window. For the reasons frequently mentioned here, we decided against it. Also because it is difficult to remove later if you don’t end up using it as often as you had hoped.
We also discussed it with the general contractor (BU) and he said that would have had to be planned relatively early, also because of wall thickness, etc. Just because you make the window fixed-glazed and place it higher doesn’t mean you automatically get a seating window underneath. Either the seat bench protrudes into the room, or you only have as much seating area as a typical windowsill.
The seating window would have been an extra charge for us as well, and our general contractor is usually not the type to look for extra charges everywhere. On the contrary.
He is more the type to say, "Here, I got some parquet cleaner from the parquet supplier, we’ll leave it here for you after the final cleaning. I brought 2 bottles, it’s concentrate, one is enough for 40 times of damp mopping."

We also changed one of the windows to fixed-glazed and didn’t have to pay extra for that. Only the grilles and the lift-and-slide system were charged extra. And the fixed glazing we chose is not a small window; it measures 3m x 1.40m.

(...)
I regret having saved money on the bathroom's roller shutter (everywhere else roller shutters). We thought a simple privacy screen would be enough. Now I'm struggling with an internal privacy screen. Half-baked solution.

Struggling with an internal privacy screen is also on Amnesty's list, right after Russian torture prisons and penal camps in North Korea.

You now have dozens of opinions... and as I said at the beginning, it doesn't help you at all, does it? ;)

Do it at that price and forego something that can be acquired later. Otherwise, in the end, you'll have to move out and tear everything down because you don't have a roller shutter in the bathroom and have to move your arm twice a day. Unacceptable, I'm still stunned that a construction company carries this out without protest.