In my opinion it is easier to sell one bed apts. Young people wishing to get on the property ladder tend to start at the bottom (1 bed apt) if they're single or somewhere in the middle (small house) if they're a couple. The single person only needs a one bed. If they meet someone they soon realise they need more space and a 2 bed apt would generally not provide this. They would also think ahead of children and this would lean them to a house as oppose to an apt due to safety i.e. high window, stairwell if the lift breaks etc. The only people who would live in a two bed are renters who generally wish to save on rent by sharing. While I know many single/couples have 2 bed apts I think they are regretting the decision and are trying to get to the next stage. As mentioned by someone earlier, the only reason to buy a 2/3 bed apt would be to avail of a rent a room if they decide to live there, otherwise its just investors who would be buying. The one bed would attract investors, FTB, downsizers and dont forget the divorcees who soon will become quite a large portion of the population.