Why Do People Build Duplexes?
As Investments
The most common reason duplexes (and townhouses) are built are for investments(*2). A couple wanting to pay off their mortgage faster may opt to invest in a duplex to generate income. Rather than building one house on a block, duplexes provide investors with two rental incomes. Students, young professionals, and small families wanting a more affordable rental option often look to duplexes. In built-up neighbourhoods, duplexes double the number of people who can live close to amenities, work, and schools(*3).
