West Island & Saint-Laurent is a established-tier Class A submarket of Montreal with average asking rent around C$28/sqft/yr · ≈ $20.7 PSF/yr USD.
Aerospace and tech belt. · Tier: established · Avg rent: C$28/sqft/yr · ≈ $20.7 PSF/yr USD
The West Island and Saint-Laurent anchor Montreal's aerospace and tech belt — Bombardier, CAE, Pratt & Whitney, and a deep tech R&D cluster.
Aerospace, tech R&D, pharmaceuticals, manufacturing HQs.
15–40,000 sqft floor plates available across newer Class A stock; 9'+ slab-to-slab and modern MEP common.
exo Vaudreuil-Hudson and Deux-Montagnes lines; REM (2024-25).
Multi-modal transit captures the metro's principal professional catchment.
Fairview Pointe-Claire, Cap-Saint-Jacques nature park.
West Island & Saint-Laurent is one of 5 Class A submarkets we cover in Montreal, classified as established tier with an average asking rent around C$28/sqft/yr · ≈ $20.7 PSF/yr USD. Compared with the broader Montreal Class A stock, West Island & Saint-Laurent typically attracts Aerospace, tech R&D, pharmaceuticals, manufacturing HQs and competes most directly with the city's other established submarkets on building specification, transit access, and amenitisation.
Adjacent submarkets to study alongside West Island & Saint-Laurent: Downtown CBD, Mile-Ex & Marconi, Griffintown & Old Port, René-Lévesque West. The full Montreal submarket atlas is at /cities/montreal.
For an institutional Class A occupier evaluating West Island & Saint-Laurent, the highest-leverage analyses to commission next are the rent benchmark, the concession-package comparable, and the ESG performance baseline. Class A Atlas covers each as a dedicated topic page for this submarket:
Terminology specific to Montreal Class A leasing and to the established tier: Class A, Trophy asset, Effective rent, Concession package, TI allowance, Submarket tier.
Reviewed by Miriam Hollander — Lead market analyst. Last updated 2026-04-15. See our methodology and editorial standards.