Housing development in Ontario has significantly shifted over recent decades, reflecting changing market dynamics, affordability challenges, and evolving consumer preferences. MPAC (Municipal Property Assessment Corporation) data reveals a rise in high-density housing like condos, which surpassed single-detached homes as the dominant new-build type by 2020. While single-detached homes remain popular, urban centers like the GTA have seen reduced construction of this type, replaced by smaller condos and other high-density housing.

The size of single-detached homes has grown over time, with median sizes increasing from 1,317 sq ft in the 1970s to 2,383 sq ft in the 2020s. Meanwhile, condos have shrunk by 32%, from 965 sq ft to 658 sq ft, driven by rising costs and their appeal as investment properties. Townhouses and semi-detached homes have seen modest size increases, balancing affordability with space.

Regional differences highlight trends such as King Township’s median single-detached home size of 4,716 sq ft, contrasting with smaller condos in urban areas. However, some smaller municipalities are building larger mid/high-rise condos, reflecting diverse market needs. These patterns underscore the importance of addressing affordability, demand, and local planning policies in housing development.

MPAC’s data provides key insights into Ontario’s evolving housing landscape, aiding municipalities and developers in planning for future needs and supporting community growth strategies.

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