A home addition adds real value in Canada, but the return depends on what you build and where. In Ontario, most home additions deliver 50–75% ROI at resale, while legal secondary suites can reach 75–95%.
Adding a room to a house means expanding your living space with a new area, such as a bedroom or office, through a structured home extension or conversion. The process includes a design phase, securing permits,
Multigenerational home design Ontario projects typically take one of four forms: an interior in-law suite, a basement secondary suite, a detached garden suite or laneway house, or a second-storey addition.
