Combine venetian blinds and roller shutters at the house

You can still compensate for the different heights and widths if you take this into account in the planning. The depth possibly not.

We have venetian blinds in the important rooms on the ground floor, and roller shutters in the others and throughout the entire upper floor. The shell construction is currently standing, and I really have not noticed any difference in the design or dimensions.

Thanks for the many responses! The issue with possibly different installation levels is an important point that I hadn't considered before. Hmm, maybe I should then make all 3 windows facing the street on the ground floor with external blinds. The thing is, I am renovating an old bungalow and at the same time adding an upper floor. The exterior wall with the 3 windows is pretty much the only part being retained from the existing structure. Accordingly, I aligned the windows in the (new) upper floor to the sizes in the basement. I will probably have to go into more detailed planning with the structural engineer again. And the deeper sun in the west is of course also true. From that perspective, it might be good to also equip the kitchen window with an external blind to prevent the sun from bothering you when working there. Somehow it also got stuck in my head that roller shutters offer better burglary protection, so I actually wanted to generally use roller shutters on the ground floor, but for the reasons mentioned above, I switched back to external blinds for the "important" windows. I know that this is not quite right and that security should rather be ensured through the window itself. I planned to use laminated safety glass and RC2 on the ground floor anyway, and for the non-visible doors to the garden possibly even P2A, but I am still waiting for the additional costs and will decide then.

that the roller shutter offers better burglary protection

That is - when comparing standard roller shutters with standard venetian blinds - incorrect.

I asked our site manager yesterday out of curiosity whether there is a difference between the roller shutter and venetian blind boxes. Our responsible window manufacturer makes these themselves and both are the same.

You increase burglary protection through better glass or by installing an EMA (here you have to think of the magnetic contacts for the windows)

I asked our site manager yesterday out of curiosity whether there is a difference between roller shutter boxes and Venetian blind boxes. Our responsible window manufacturer makes these themselves and both are the same.

That doesn't sound particularly sensible. A Venetian blind is raised into a compact package and a roller shutter is rolled up in the box. Therefore, it requires completely different dimensions and "intake openings".