424 avenue Roslyn vs 558 avenue Roslyn
Data as of October 29, 2026 · updated every week
424 avenue Roslyn is the older building (1900); 558 avenue Roslyn was built in 1907. 558 avenue Roslyn is assessed at $6,025,300, 125% more than 424 avenue Roslyn ($2,679,600). Neither has a building permit on record. Neither is in a flood zone.
| 424 avenue Roslyn | 558 avenue Roslyn | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | ≈ 1900 | 1907 |
| Assessed (roll) | $2,679,600 | $6,025,300 |
| Since the previous roll | 0 % | 0 % |
| Welcome tax on that value | ≈ $38,305 | ≈ $88,490 |
| Lot | 413 m² | 1,031 m² |
| Floor area | 288 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, 750 m | Vendôme, 990 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 424 avenue Roslyn Full report: 558 avenue Roslyn