What Short-Term Rental Rules Mean for Rental Yield and Market Timing
Every serious investor knows that regulation is a market force, not just a policy footnote. New research out of McGill University gives us a rare, data backed look at exactly how much that force can move rents, and the numbers are worth every investor’s attention.
The study, led by David Wachsmuth of McGill’s School of Urban Planning, tracked Canadian municipalities from 2017 to 2022 and found that neighbourhoods restricting short-term rentals of principal residences saw average monthly rents drop by $24 in the first year of regulation. That gap widened over time, reaching $55 per month in regulated neighbourhoods and $40 per month in nearby areas that had not adopted restrictions themselves. Aggregated across 309 affected neighbourhoods, the researchers estimate Canadian renters saved $192.4 million in monthly rent payments in 2023 alone.
For landlords holding long term rental units, this is not a cautionary tale, it is market intelligence. Markets that tighten short-term rental rules are effectively redirecting supply back into the long term rental pool. That shift softens rent growth for tenants, but it also signals something important to investors: these are markets where long term rental demand is deepening and where inventory dynamics are shifting away from the short term, high turnover model that dominated the last decade in cities like Toronto and Vancouver.
The spillover effect is the part that should really sharpen an investor’s read on timing. The study found that even neighbourhoods without their own restrictions saw meaningful rent relief simply by being adjacent to regulated areas. That tells us regulation does not stay contained within municipal borders, it reshapes regional supply and pricing patterns. An investor evaluating a market should be looking one step beyond the immediate bylaw and asking how neighbouring jurisdictions are positioned, because the ripple effect on rent growth, and by extension on achievable yield, extends further than the regulation itself.
Lots of things cause housing to be expensive, but this is low-hanging fruit to manage those costs.
That quote from Wachsmuth is a useful frame for portfolio strategy as much as policy. Regulatory risk around short-term rentals has been building across Canada for several years now, and this data confirms it is not a marginal factor, it measurably moves rent levels at scale. Investors who built strategies purely around short-term rental arbitrage should treat markets moving toward restriction as markets where that specific model’s margin is compressing. Meanwhile, investors focused on traditional long term holds may find that regulated markets offer a more stable, more predictable rental demand base, even if headline rent growth is slower.
The lesson for anyone underwriting a deal in 2026 is straightforward. Policy direction on short-term rentals is now a quantifiable input, not just a headline risk. Building it into your rent growth assumptions and your exit timeline is no longer optional, it is part of doing the underwriting properly.
Source: MobileSyrup, reporting on McGill University research.
