Build Smart: Duplex with Legal Secondary Suite - Rules, Process & Benefits for Buyers and Investors If you're a first-time home buyer , real estate investor , or builder looking to take advantage of Winnipeg’s growing infill development market, this guide is for you. With the city supporting densification in mature neighborhoods, building or buying a duplex with a legal secondary suite is one of the smartest ways to build wealth, generate income, and create long-term value. What is Infill Development? Infill development refers to building new homes - like duplexes - on vacant lots or replacing older homes in established neighborhoods. The City of Winnipeg encourages infill to increase density, improve infrastructure use, and offer more housing without expanding into undeveloped land. These new properties often feature: Modern layouts Energy-efficient construction Secondary suites to boost affordability and rental income What is a Legal Secondary Suite? A lega...