Flats on the left of the corridor.

[tufguy]

"There is a building that has a corridor and there are flats on the left side of the corridor. This corridor is open on the right side so it serves as a balcony as well for the residents. Tom lives in this building in the corner most flat."

Please check.

 

[Raymott]

First, the flats are only on the left of the corridor if you are walking down the corridor in a specific direction. If you turn around and walk back, they're on the right.
'Cornermost' is not a common word. From your description, Tom would appear to live in one of the end flats, but which one would be a guess. If there was an entrance to the corridor at only one end, Tom would probably live in the endmost flat at that end of the corridor.

 

[tufguy]

He lives in the endmost flat of the corridor. Is this correct?

 

[Raymott]

Which end?

 

[tufguy]

Which end?

I didn't get it?

 

[Rover_KE]

I don't get it. [You need a full stop (period) there; it's not a question.]

The corridor has two ends.

 

[tufguy]

So do I need to say "Tom lives in the right endmost flat in the corridor?"

 

[tedmc]

Which floor? Each flat should have a number.
There could be more than one entrance. Your description doesn't not tell much.

 

[tufguy]

Which floor? Each flat should have a number.
There could be more than one entrance. Your description doesn't not tell much.

"Tom lives on the first floor right endmost flat (flat# 5) in the corridor, when you enter the corridor from the right side."

 

[tufguy]

Could you please check it as well?

 

[Rover_KE]

It's fine.

 

[tedmc]

I prefer "last flat"(on the right) instead of "endmost flat".