Define your needs first.

What size, type and price range of home do you need?
Decide on the area you want to buy an apartment. This may be involving
spending some time in that area or at least doing some research at home
Before you buy, research the market to make sure you are getting value for
money. Talk to independent valuers and real estate agents, and check
recent sales in the area Don’t rely on advice from the developer or their
agent. This is particularly important if you are buying off the plans. You
want to know that the value of the finished apartment will reflect at least
what you paid. Also Visit as many places as you can looking for properties
that fit your criteria, so you’ll have a good idea of what your money buys.