Mirror cabinet and washbasin cabinet: what to pay attention to?

How high should the mirror cabinet be? we can only set the bottom edge of the mirror cabinet at 150cm because we have a plinth at 120cm on which the washbasin is mounted and under the mirror cabinet on the plinth you can still place things

How high should your mirror cabinet be? We have a built-up wall with 120cm, 5cm clearance, and above that a cabinet 80cm high. It shouldn’t be any higher, the top shelf is already at the upper end for my 1.80m height, since the washbasin is a bit away from the wall. We use the shelf between the built-up wall and the cabinet for hairbrushes (2 women and a metalhead ;) ) The washbasin is integrated into the base cabinet, both are the same width

thanks

Yes, it's a question of how much space there should be between the base and the bottom edge of the mirror cabinet.
I initially estimated it at 30cm.
Would 20cm be enough? I can hardly imagine that.

Let's start with the width, should the mirror cabinet be as wide as the washbasin or a bit larger?

Take a look at some pictures of bathrooms with [Spiegelschrank] and decide which you like better. Usually, it is as wide as the base cabinet. Sometimes narrower as well. Wider doesn't make sense, since you stand in front of the sink, not beside it, when you look in.

I have already read everything

1. Smaller (wouldn't make any sense to me at all)

2. Same size, is probably the most commonly chosen

3. Larger but not too large, larger is supposed to make the room look bigger in the end.

But what does too large mean again?
5, 10, 15 or 20 cm larger on each side?

Yes, it's a question about how much space there should be between the base and the bottom edge of the mirror cabinet. I initially estimated 30cm. Would 20cm be enough? I can hardly imagine that.

What do you want to put underneath? 20cm would be quite tight for a toothbrush or a deodorant. Larger cans like hairspray, etc. won't fit underneath. Always remember that you need a bit more space than the height of your items.

The bottom edge of the mirror cabinet should perhaps also be made dependent on the user's height. 150 cm would be a bit high for me even at a height of 180 cm. You can barely see your face then.

I would probably have the mirror cabinet start at the height of the [Vorsatzwand], i.e., 120 cm, or would have planned an integrated cabinet accordingly right away.