338 avenue Roslyn vs 417 avenue Roslyn
Data as of October 29, 2026 · updated every week
417 avenue Roslyn is the older building (1910); 338 avenue Roslyn was built in 1920. 417 avenue Roslyn is assessed at $3,514,500, 38% more than 338 avenue Roslyn ($2,548,200). Neither has a building permit on record. Neither is in a flood zone.
| 338 avenue Roslyn | 417 avenue Roslyn | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1920 | 1910 |
| Assessed (roll) | $2,548,200 | $3,514,500 |
| Since the previous roll | +10 % | 0 % |
| Welcome tax on that value | ≈ $36,334 | ≈ $50,828 |
| Lot | 485 m² | 670 m² |
| Floor area | 271 m² | 325 m² |
| Notice of deterioration | No | No |
| City’s right of first refusal | No | No |
| Heritage | No | No |
| In a flood zone | No | No |
| Building permits on record | 0 | 0 |
| Findings | 1 Note | 1 Note |
| Nearest metro | Vendôme, 650 m | Vendôme, 780 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 338 avenue Roslyn Full report: 417 avenue Roslyn