Build

Here is an odd thing.
Two new buildings being constructed in a narrow space on a railway embankment.
First of all they cleared away the foilage, then they laid the concrete bases, then erected these units.

They appear to be three floors high, but are very narrow.
The door space seems narrower than the interior doors in my house. Looking inside as one drives past, the corridor and rooms seem tiny.
Is it flats, houses?
How are the going to get the furniture in ?
If I remember I will give updated as things progress.

Thanks to Charlie17 for the use if the song link.