The main fundamental difference is that generally a rear strata retains the existing house as part of the scheme where the latter is constructed on a vacant site. The land area required to accommodate this type of developments generally ranges from 700m2 to 900m2. They are also accompanied by lower density zoning typically from R20 to R30 with limited lot configurations
Similar to the rear strata, a duplex is also a popular entry level development consideration for the novice investor allowing for partial hold strategies.
For the occupier, they are considered to be a cost-effective and desirable way of obtaining family orientated housing in areas near established liveable neighbourhoods with high-grade amenities. This type of housing is always in high demand, reducing its risk profile and making it quite attractive when a duplex is being considered as a development option.