The Housing Win That Got Buried

Recently, the housing news cycle was dominated by the provincial and federal governments' $8.8 billion announcement to get municipalities to cut development charges by 30 to 50 per cent over the next three years. It was a significant move for lowering the cost of building new homes. But a more technical change introduced by the province on the same day got little attention, even though it could also significantly shape what gets built in the future.

As part of the Building Homes and Improving Transportation Infrastructure Act, 2026, Ontario is proposing to set a minimum residential lot size of 175 square metres on urban, fully serviced land across the province.

For readers outside the planning world, minimum lot sizes set the smallest piece of land a municipality allows for a home. When that minimum is high, new homes are forced onto more land, making smaller and more attainable housing types harder, or in some cases impossible, to build. In practice, that means a municipality could no longer require a lot to be 400, 600, or 800 square metres, the kinds of minimums that are standard across many of the region's fast-growing communities, where 175 square metres would meet the need.

What does 175 square metres actually get you? Enough room for a semi-detached or a modest detached home. It makes severing a lot – turning one property into two – more viable. These are the kinds of small, ownership-attainable homes the market has been trying to build for years and that zoning has been quietly preventing.

Some municipalities maintain up to ten different low-density residential zones, each with its own minimum, a complexity that ultimately constrains supply more than it serves residents. The province stepped in because it was clear that wasn't going to change on its own.

For old Toronto - downtown and East York - where existing lots are already quite small, the direct effect is limited. But that's not the whole city. Scarborough, Etobicoke, and North York share a suburban development pattern much closer to Brampton or Whitby than to the old city core, and the same logic applies there as it does across the broader region. When those communities can accommodate more starter homes and gentle infill on smaller lots, that's supply added where affordability pressure is genuinely severe and where a significant share of our regional workforce actually lives.

The economic stakes here are real. When smaller ownership options aren't available, people are forced to move further out to find something they can afford or leave the region entirely. Over time, that makes it harder for businesses to hold onto the talent they have and shrinks the pool of workers they can draw on locally. Housing supply isn't just a social policy question; it's a competitiveness question.

While municipalities will need to address this change in their zoning decisions individually, the other reason a provincial standard matter is that it applies everywhere equally.

This won't solve the housing crisis. No single measure could. But it removes a long-term obstacle that was never going to move through local politics alone, and those are often the most important wins to pay attention to.