This one, or rather the building behind is causing me grief!
It's Alexanders (Cars/Motors) of Semple Street's main HQ
I'm placing the photo somewhere in this range: 1922-24.
I have a picture from 1920 (apparently) of Port Hamilton which shows the back end going up (framed).
I also have an aerial, possibly same year with a bit more than the foundations in place.
There's also an aerial from 1929 which seems to show the completed building.
That whole area has had such a transformation. Ohh to time travel back to those days and wander around the area.
Taken around 3:30am (10:30pm local time) this morning. Such a nice time of the year.
The edge in top right quadrant is usually further out, probably by another 10-20 miles. Saying that, perhaps it's becoming the new norm!