377 avenue Roslyn vs 516 avenue Roslyn
Data as of October 29, 2026 · updated every week
377 avenue Roslyn is the older building (1909); 516 avenue Roslyn was built in 1910. 516 avenue Roslyn is assessed at $4,920,000, 135% more than 377 avenue Roslyn ($2,097,700). Neither has a building permit on record. Neither is in a flood zone.
| 377 avenue Roslyn | 516 avenue Roslyn | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1909 | 1910 |
| Assessed (roll) | $2,097,700 | $4,920,000 |
| Since the previous roll | +10 % | 0 % |
| Welcome tax on that value | ≈ $29,576 | ≈ $71,911 |
| Lot | 335 m² | 1,031 m² |
| Floor area | 240 m² | 438 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, 730 m | Vendôme, 870 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 377 avenue Roslyn Full report: 516 avenue Roslyn