Although it is something rare, when clients decide to change the unit they have purchased within a new development, the most common cause of buyers changing from one unit to the other is the number of bedrooms.  Many clients who start the buying process in a new build realize that for a relatively small amount of money they can have an extra bedroom, for example they change from a 2 bedroom apartment to a 3 bedroom apartment within the same complex.  The second most common reason for a client to change apartment is because they want larger outdoor space and they achieve so by purchasing a penthouse or a ground floor apartment with private garden.