308 avenue Roslyn vs 421-423 avenue Roslyn
Data as of October 29, 2026 · updated every week
Both were built in 1910. 421-423 avenue Roslyn is assessed at $2,067,800, 31% more than 308 avenue Roslyn ($1,580,500). Neither has a building permit on record. Neither is in a flood zone.
| 308 avenue Roslyn | 421-423 avenue Roslyn | |
|---|---|---|
| Type | House or building | 2 dwellings |
| City and borough | Westmount | Westmount |
| Built | 1910 | 1910 |
| Assessed (roll) | $1,580,500 | $2,067,800 |
| Since the previous roll | +10 % | 0 % |
| Welcome tax on that value | ≈ $21,818 | ≈ $29,128 |
| Lot | 181 m² | 351 m² |
| Floor area | 147 m² | 324 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 | 2 Note |
| Nearest metro | Vendôme, 650 m | Vendôme, 790 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 308 avenue Roslyn Full report: 421-423 avenue Roslyn