Load-bearing interior wall in hard concrete from 1966

[newkidintown]

Hello
I am renovating my home and am interested in widening one of the doorways in the partition wall between the kitchen and living room.
The doorways are 80cm in width, with 50cm from the top edge of the doorway to the ceiling, and the wall is 15cm thick except for the pillar which is 20cm.
It's plain concrete around the doorways so there's no beam or anything, the wall probably came as one piece with the doorway when it was built. However, there is reinforcement above the doorways.

For your information, it's a four-story apartment building and I have the basement and ground floor in the building.

What are the possibilities of widening one of the doorways?

Thank you in advance!

 

[justusandersson]

I disregard all formal aspects of the problem. The presence of a pillar suggests that the house's load-bearing system could be some form of pillar/slab system. If so, a widening should be possible. Then it is a matter of achieving assurance about this, which reasonably requires hiring a structural consultant who can document the conditions and describe how it should be done.

 

[BirgitS]

And to address some formal aspects, interventions in the walls require permission from the board, and interventions in load-bearing structures additionally require a building notification.
http://www.stockholm.se/ByggBo/Bygglov/a-o-lanksidor/Anmalan/

 

[anders07]

And to touch on some formal aspects, any alterations to the walls require permission from the board, and alterations to load-bearing structures additionally require a building notification.
[link]

Yes, just as Birgit says!
We made a new doorway in a condominium we lived in previously, and since other residents had done the same, the board could approve the opening directly.
When we later renovated another condominium, we had to hire a structural engineer (around 6000 SEK) to find out that we couldn't make an opening because the construction drawings turned out to be incorrect...