City governments across Canada are promoting what planners call “gentle density.” The idea is straightforward: replace single-detached houses with duplexes, triplexes, fourplexes and, in
Edmonton
’s case, eightplexes to increase
housing supply
without dramatically altering neighbourhood character.
In principle, gentle density is a sensible policy. In practice, however, its unintended consequences are proving detrimental to some nearby residents.
A recent report in the Edmonton Journal exposed concerns that many residents had quietly dreaded. Certain properties approved and built as multiplex housing are not being used exclusively for long-term rental purposes. Instead, they now serve as rooming houses or
short-term rentals
, effectively functioning as boutique hotels embedded into residential neighbourhoods.
This outcome clearly diverged from the initial planning objectives. Advocates for increased density argued that expanding the availability of smaller units in established neighbourhoods would attract new residents, including small families, students and workers seeking long-term accommodation, who would benefit from existing community resources and infrastructure such as transit systems, roads and sewerage networks.
When these units are converted into short-term rentals or rooming houses, the policy goal is compromised. The neighbourhood attains the density but not the housing stability that originally justified the policy.
This mismatch between intent and outcome calls for regulatory adjustments rather than abandoning the concept of gentle density altogether. In Edmonton, the city is reviewing multiplex regulations, including reducing the maximum number of units on residential streets from eight to six, but strict enforcement is needed to ensure conformity in their use.
Municipal governments need to update their short-term rental regulations to ensure that the new multiplexes do not become commercial lodging businesses operating in residential neighbourhoods. A practical and oft-implemented solution is to mandate that short-term rentals be allowed exclusively in owner occupied principal residences. When the owner lives onsite, neighbours have a clear point of contact and accountability should guests cause noise disturbances, parking issues or other nuisances.
Without such safeguards, multiplex zoning can unintentionally create unregulated clusters of transient accommodation. This was also the case in
Toronto
, before the city imposed restrictions ensuring certain types of properties could not be used for short-term rentals.
There are other legitimate concerns about negative externalities, a concept well understood in urban economics. When properties operate as de facto hotels, with guests arriving and departing daily, the surrounding residents experience impacts that were never part of the social contract of residential zoning. Increased noise, parking pressure and unfamiliar transient occupants can alter the perceived stability of a street.
In economic terms, these are negative externalities imposed on neighbouring properties.
If such impacts depress property values or reduce neighbourhood desirability, municipalities should, at a minimum, measure and monitor these outcomes. Cities routinely regulate land use to protect public welfare; they should be equally willing to track whether some policy changes inadvertently erode neighbourhood value. Where demonstrable harm occurs, municipalities must be prepared to reconsider regulatory frameworks or provide appropriate mitigation.
Transparency and enforcement are also essential steps.
Cities should maintain public registries of short-term rental properties and rooming houses, allowing residents to see which properties in their vicinity are licensed for such uses. This information empowers communities to report illegal or unregistered operations.
Enforcement must also be credible. If penalties for violations are trivial compared with the profits generated from illegal short-term rentals, compliance will remain elusive.
Meaningful enforcement requires penalties that are large enough to serve as genuine deterrents.
Ultimately, the purpose of urban planning is not merely to maximize density. The goal is to create and protect value — economic value, certainly, but also cultural and communal values.
Neighbourhoods derive their identity from a delicate balance of permanence, familiarity and social cohesion. When residents know their neighbours and share a sense of place, those neighbourhoods become desirable places to live. That desirability, in turn, generates value for the entire city.
Gentle density remains an important tool for addressing Canada’s
housing shortages
. But its success depends on aligning policy design with policy outcomes. If multiplex zoning increasingly produces short-term rental properties rather than long-term rental homes, cities will have solved the wrong problem.
Good planning requires not only bold reforms but also careful guardrails.
Cities must ensure that gentle density delivers what it promised: more homes for residents, stronger neighbourhoods and growth that enhances rather than erodes the character of the communities people call home.
Murtaza Haider is the executive director of the Cities Institute at the University of Alberta and the Radhe Krishna Gupta Executive Chair in Cities and Communities at the Alberta School of Business. Stephen Moranis is a former president of the Toronto Real Estate Board and an industry veteran providing strategic market insights.