mufi bhai...everyone keeps saying the property bubble in Bangladesh is going to burst...at some point in time, the prices being asked for, will go beyond what even the upper middle class can afford. But it is yet to happen.
Rayer Bazar 1100sqft next to Sikder Medical, horrible roads, stench of leather factory by products, waterlogged, apartments are still going for ~48-50lakh.
For a 3 bedroom apartment, you're looking at 1200-1300 sqft, in Dhanmondi we sold for between 2-2.5crore. In Mohammaadpur, around 75-80lakh. I don't think it'll be too different in Mirpur, maybe knock off 5 lakh, in 4 years time...you don't wanna know.
EDIT: Most importantly apartments are horrible investments(the shoddy nature of the work - we built 3 ourselves after going halves with a real estate company on our 1st one...and I felt really guilty selling those apartments to ppl
), use your money to buy a plot...good place to buy would be just outside dhaka(along the dhaka-ctg highway), give it ten years, and it'll be swallowed up by Dhaka, and prices will go through the roof.