I'd do option 2 myself. Technically I see an option 3- putting the couch out in the open, diving the two spaces. Couches don't need to be on a wall- you'd just need a smaller couch to do that and still have space to pass through to the other room.

Hello Sir, For an apartment building, mold shall not be much of an issue. If it is done properly and the gaps are closed then even insects/cockroaches are not a problem in the brick walls. In fact they become more beautiful after some weathering and exposure. The man-made alternatives to actual brick finish are, brick tiles, brick wall papers, brick design laminates and MDF sheet. They are a close replica but personally we prefer actual bricks for the exteriors. Thanks, Nitin Cornerstone Designs Bangalore

A welcoming front door design is a prerequisite to every stylish home. It assures the guests about the genial ambience that is waiting for them beyond the door. A shabby doorway hardly ever leads into a warm and welcoming home.

Glass will be good if it can sustain air pressure