I have just left Dubai....

Housing alone for a family costs equiv 15,000QRpm 3/4 bed villa, i would say similar to Qatar rentals.
Say you need 10,000QR equiv for 2 bed apartment in a reasonable area.
Living is expensive, need approx another 10,000 pm...depending on your standard of living!...

Then , if you want to send to your home country / saving etc...add whatever else...
so 20,000 to 25,000 would cover living in dubai...single guy or just husband and spouse no children...need alot more if children involved..etc...