how likely is it that diverting is possible

[Mwelander]

I would like to move a wall in two places and switch, how likely is it that this solution is possible?

One span is, as the picture shows, a bit shorter and the other a bit longer. For the longer one, there is concrete underneath to rest the pillars on, a steel beam might be needed?

For the shorter span, laminated wood might be enough, but how about the floor underneath for such a long beam, is it necessary to possibly reinforce from underneath all the way down in the crawl space under the support pillars?

There is an upper floor.

The picture shows the current floor plan on the left and the intended one on the right. I do not yet have information about load-bearing walls, so I assume all of them are.

 

[fahlis]

I would like to move a wall in two places and create openings, how likely is it that this solution is possible?

One span, as shown in the picture, is a bit shorter and the other a bit longer. For the longer one, there is concrete underneath to rest the pillars on, maybe a steel beam is needed?

For the shorter one, glulam is sufficient, but how is it with the floor underneath for such a long beam, do you possibly need to reinforce from underneath all the way down in the crawl space under the support pillars?

There is an upper floor.

The image shows the current floor plan on the left and the intended one on the right. I don't yet have information about load-bearing walls, so I assume they all are.

In which direction do the upper floor's joists lie?
The direction of the trusses?

 

[Mwelander]

The ceiling is like this.
Image for orientation only, not to scale or with the correct number of chairs etc.

 

[Mwelander]

The municipality responded as follows regarding the building permit for the expansion of the living room:

Regarding the question of a building permit for expanding the living room, we assess that it is not required if no other extensions have been made since the new construction, since the property is located outside a cohesive building area, allowing you to use the exception in Chapter 9, Section 6 of the Planning and Building Act, as long as the extension is not closer to the property boundary than 4.5 meters. If it is closer, neighbor consent is required from the concerned neighbor.