343 avenue Roslyn vs 565 avenue Roslyn
Data as of October 29, 2026 · updated every week
343 avenue Roslyn is the older building (1909); 565 avenue Roslyn was built in 1912. 565 avenue Roslyn is assessed at $2,514,000, 51% more than 343 avenue Roslyn ($1,661,800). Neither has a building permit on record. Neither is in a flood zone.
| 343 avenue Roslyn | 565 avenue Roslyn | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1909 | 1912 |
| Assessed (roll) | $1,661,800 | $2,514,000 |
| Since the previous roll | +10 % | 0 % |
| Welcome tax on that value | ≈ $23,038 | ≈ $35,821 |
| Lot | 320 m² | 522 m² |
| Floor area | 195 m² | 333 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 | 2 Note | 1 Note |
| Nearest metro | Vendôme, 710 m | Villa-Maria, 1.0 km |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 343 avenue Roslyn Full report: 565 avenue Roslyn