421 avenue Lansdowne vs 521 avenue Lansdowne
Data as of October 29, 2026 · updated every week
421 avenue Lansdowne is the older building (1895); 521 avenue Lansdowne was built in 1989. They are assessed at about the same value ($2,257,800). Neither has a building permit on record. Neither is in a flood zone.
| 421 avenue Lansdowne | 521 avenue Lansdowne | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | ≈ 1895 | 1989 |
| Assessed (roll) | $2,257,800 | $2,280,200 |
| Since the previous roll | 0 % | 0 % |
| Welcome tax on that value | ≈ $31,978 | ≈ $32,314 |
| Lot | 321 m² | 290 m² |
| Floor area | 391 m² | 305 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, 860 m | Vendôme, 980 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 421 avenue Lansdowne Full report: 521 avenue Lansdowne