Apartment 1807 is currently listed for sale at just less than $700,000. The apartment has a nice view of the roof of the museum (which is not so attractive) as well as the river and city skyline. This part of Grey Street is busy, often with traffic jams. The location is a very short walk to downtown Brisbane.
The apartment has two bedrooms, two bathrooms, and is 80 sqm internal, with a small 9 sqm balcony. So this works out to be over $7,850 a sqm. To me, that is very expensive.
If you are considering buying an apartment off-the-plan, it is worth looking at this apartment to see what an 80 sqm apartment is like. For example, look at the photo below -- there is no place to put a TV, unless you put the TV or the couch in front of a window, and the coffee table has been pushed up against the couch to make the room seem bigger. The kitchen is not really a room, but a row of floor tiles. The bedrooms are tiny, at 3m by 3.1m; or 3.05m by 3.3m. Typically, you would not want a bedroom less than 3m x 4m.
Keep in mind that two bedroom apartments with good views can be as large as 130 sqm, so remember to compare apples with apples when looking at apartments. That is why price per square metre is a good comparison measure.