Separate the basement room or do it yourself?

Hello

we have bought a semi-detached house with a basement from the developer

the standard includes 3 rooms: technical room, storage room, and anteroom

the anteroom is completely open when you come down the stairs
we want to separate the anteroom so that it becomes a closed room and the hallway independent

we can have the developer separate the room for 3500€
this includes fully built walls (lime sandstone) and a door (wall about 3-4m wide)

or should we just install a drywall with a door afterwards after construction?

which is better? is the price reasonable or excessively overpriced?

the separated room is to be used with shelves as a storage room do drywall walls hold up well?

3,500 € including plaster?

It is cheaper if done independently.

But sand-lime brick is of higher quality.
And everything from a single source and no construction site after construction site would be worth the (approx.) 1,000€ general contractor surcharge to me.

yes incl. Q2 plaster

so it would be a drywall and the door (I would have to make sure I get the same door as all the other rooms) about 2500€ if you do it yourself?

And everything from one source and no construction site after the construction site would be worth the (approx.) 1,000€ general contractor surcharge to me.

Actually, I just wanted to give a like, but the OP asked more:

the separated room is to be used as a storage room with shelves do drywall walls hold up well?

Drywall is just a brand name. Gypsum board walls hold up very well if they are double-layered. Or alternatively first OSB and then gypsum board. Entire kitchens hang on those. Calculate about 400€ for the door. For the drywall materials including putty work, I estimate about 500€ (personal experience).

ok thanks

so you can say 1000 - 1500€ max

So you would recommend me to have the wall made directly from sand-lime brick? because it is more high-quality?

or should I rather do it myself for 1/3 of the price? the room is going to be used as a storage room and we would screw in heavy-duty shelves (but not put extreme weights on them)

The costs according to are generous. In the basement, any door from the hardware store will do. With good planning, the DIY should be doable.

So you would recommend having the wall made directly from sand-lime brick? Because it is higher quality?

You can’t see the difference anyway. Who wants to judge that? I would prefer a DIY wood or metal stud wall. For cladding inside and outside, simply attach drywall. Double layers are not necessary.