304 avenue Roslyn vs 558 avenue Roslyn
Data as of October 29, 2026 · updated every week
558 avenue Roslyn is the older building (1907); 304 avenue Roslyn was built in 1910. 558 avenue Roslyn is assessed at $6,025,300, 203% more than 304 avenue Roslyn ($1,990,700). Neither has a building permit on record. Neither is in a flood zone.
| 304 avenue Roslyn | 558 avenue Roslyn | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1910 | 1907 |
| Assessed (roll) | $1,990,700 | $6,025,300 |
| Since the previous roll | +10 % | 0 % |
| Welcome tax on that value | ≈ $27,971 | ≈ $88,490 |
| Lot | 245 m² | 1,031 m² |
| Floor area | 212 m² | 515 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, 650 m | Vendôme, 990 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 304 avenue Roslyn Full report: 558 avenue Roslyn