Children's room facing north - your opinion?

I think north-facing windows are great – they bring in enough light but no direct sunlight. It’s not the case that rooms facing north will automatically be dark. The window should mainly be wide enough. Light comes from above. Floor-to-ceiling windows are less important in terms of light. What is meant by the slit window?

Probably like a KfW40 loophole window with a 1.5m sill height. I can confirm about the north-facing window; we have it in the bedroom and a child’s room, and I’ve never had to turn on the light during the day. As I said before, I assume the kids will fight over it when they’re older... because the second child’s room faces west with two floor-to-ceiling windows and gets really warm in summer... since no one wants to sit there with the sunshade closed... in summer, with artificial light.

Probably some KfW40 loophole with a 1.5m parapet height.

That's a bit mean. :D

I have my office facing north. In summer, I can keep the window open almost all morning before it starts to get warm inside. It's certainly not too dark. I just wouldn't install only a loophole but, depending on the layout, at least one large window. Your children will thank you if the sun doesn't blast into the room all day.

Same here. My office is on the northeast corner of our current rental apartment. A (about 2x1m) window facing north. I work almost 100% remote and find it great not to have the blazing sun on it. It's usually nicely cool too, but definitely bright enough.

There is currently a problem here that the room is hard to keep warm in winter because it's on the corner and next to the almost unheated bedroom. But you don't have that in a new building.

In our new house, by the way, none of the bedrooms/kids’ rooms have south-facing windows, but very large ones facing east/west (~3.25 sqm of glass area). That’s still more than enough. At my parents’ terraced house, I also only had a north window for a long time as a child; that’s often not possible differently in terraced houses because of the building orientation. That was totally fine too.

Our north-facing bedroom needs light during the transitional season, whereas the southern children's rooms do not need it yet. Our common room faces north, and yes, there light is also lacking in the dark season. - And the windows are more than sufficient, more is not possible. South-facing windows need to be more or less shaded in summer. The children's rooms have windows on two sides, so enough light always comes in.

I would not give the children's rooms a full north orientation. In existing buildings, terraced houses, etc., if it is not possible, then so be it.

In reality, all the windows, except those on the north side, are shaded all day with the blinds down, and the kids sit in their rooms under artificial light. At least, that’s how I observe it in over 50% of the local new buildings.

Sure... during the transitional period, a room with a south-facing window is brighter than one facing north... but where is the problem in that? In winter, it hardly matters since you are hardly at home during daylight anyway... in summer... not only south-facing windows need to be shaded. Especially the evening sun from the west heats up massively... for those who want to sit with the blinds down until 10 p.m. At our neighbors across the street, the blinds on the west side were down all day in midsummer... then I may as well move into a cave...