ᐅ Plastering the garage walls or covering them with drywall panels

Hello everyone,

the topic of the garage has now come up in our planning.
It is supposed to be built as a basement garage within the house.
So far, both some general contractors and plasterers have quoted prices ranging from well over 1000 up to around 2000 for the interior plastering of the garage.
I also read that the garage could be lined and finished with gypsum drywall panels in the electrical room (we plan to do drywall construction there anyway). This would probably keep material costs under 500.
The question now is whether the panels could be damaged in the unheated garage.
On the one hand, I understand that it gets quite cold there in winter and that rain and snow also bring more moisture into the garage. On the other hand, it is a basement garage that probably never cools below 10°C (50°F). Additionally, it might be possible to use the green moisture-resistant panels. The finish doesn’t need to win any beauty contests, but I would like to install the electrical system flush-mounted; otherwise, I might not plaster the wall at all.
Thank you very much for your opinion or even expert advice. Maybe someone has already done something like this.

I would recommend plastering – moisture-resistant drywall panels do offer some resistance to moisture, but not to consistently high humidity levels – which you will have in the basement.

And it’s not just winter that’s problematic, but also summer, because every time you open the door you let in a rush of warm, humid air.

Using a lime-cement plaster will prevent issues like mold or similar problems.

I agree, at least the walls should be finished with lime-cement plaster.
For a wooden beam ceiling, the green drywall panels could still be used.

What does the rest of the basement look like?

From the garage, you enter the heated hallway.
Additionally, a heated office, the utility room, and a storage room are planned in the basement.
A staircase leads up to the ground floor, but the area is open when viewed from the hallway.