Buy a studio apartment in tokyo

Someone knows how much is to buy one those small studio apartments( those 20sqm or less) in central tokyo and a little bit far from the center,
I just want have a idea about it

About 20,000,000 yen, more or less. But not many people buy one.

Used ones (~30 years old) can be bought for less than 10,000,000 yen. It just depends on what you're looking for. There's plenty of information online.

Where i can find some information online?

come on now...just look for real estate companies.. beware that those with sites in English, for foreigners, are more geared for big companies and have places with rent or prices that are very high.

There a few agencies with medium prices though ..it is just a matter of spending a lot of time on Google.

Of course any place in Tokyo, as in London. Paris etc. will cost way much more than in smaller --but big enough--towns in these capitals' respective countries..Do you really want Tokyo only? I would be happy in Osaka etc.

have a look at http://www.housingjapan.com/

thanks