In Montreal, the difference between a profitable project and an expensive lesson is usually decided before purchase — in the zoning grid, the borough council room, and the cost lines that only appear after you own the land. This primer maps the regulatory terrain for buyers of development property.
The Structure: City, Borough, and the Grid
Montreal's planning power is split. The central city sets the master plan (and city-wide policies like inclusionary housing); the nineteen boroughs control local zoning bylaws and issue permits. Practical consequence: the same project can be trivial in one borough and impossible in the neighbouring one. Borough political culture is a real underwriting variable.
Each lot carries zoning parameters: permitted uses, maximum height (in metres and storeys), density (floor area ratio), lot coverage, and setbacks. The first hour of any development analysis is reading this grid against the parcel — what can be built as of right, with no discretionary approvals.
As-of-Right Versus the Discretionary Path
As-of-right projects — conforming to existing zoning — need only permits. Timeline measured in months. Risk: low.
Discretionary projects need one of Montreal's approval mechanisms: minor variances, site planning review (PIIA), specific construction projects (PPCMOI), or full zoning amendments. Each adds public consultation, council votes, and in some cases referendum exposure. Timeline measured in years. Many experienced Montreal developers simply refuse projects requiring rezoning in unfavourable boroughs — the carrying cost of three years of process can exceed the density gain.
The Cost Lines Buyers Miss
- Inclusionary housing obligations. Montreal's bylaw requires social, affordable, and family housing contributions (built units, land, or cash compensation) on larger residential projects. This is a real line item — model it from day one.
- Parkland dedication ("frais de parc"). Up to 10% of land value on subdivision or redevelopment, payable in land or cash.
- Decontamination. Much of Montreal's redevelopment land carries industrial history. Phase I/II environmental studies before purchase are not optional; remediation can run from thousands to millions.
- Heritage and demolition control. Demolition permits are discretionary in most boroughs, with committees and possible opposition. Buildings with heritage status or in heritage areas add a full extra layer.
- Infrastructure and connection fees. Water, sewer capacity, and street works can be conditions of permits in intensifying sectors.
How This Prices Into Land
Every constraint above subtracts from residual land value (the math behind land assembly). Sophisticated buyers price the probable approved envelope, not the theoretical maximum, then structure offers around the risk: conditional periods tied to permits, options, or price adjustments keyed to approved density.
The Practical Sequence Before an Offer
- Zoning grid analysis and as-of-right envelope
- Borough intelligence — recent decisions on comparable projects
- Environmental desktop review (historic uses)
- Inclusionary/parkland cost modelling
- Residual value calculation across realistic scenarios
This is the underwriting my practice runs on development files — alongside off-market sourcing for sites that never get listed. For owners wondering whether the development angle changes what their property is worth, the seller-side process prices both scenarios.
Jeremy Soares is an OACIQ-licensed residential and commercial real estate broker (H2731) in Montreal. Rules evolve and vary by borough — verify current bylaws on any specific file.