423 avenue Lansdowne vs 508-510 avenue Lansdowne
Data as of October 29, 2026 · updated every week
508-510 avenue Lansdowne is the older building (1898); 423 avenue Lansdowne was built in 1910. 508-510 avenue Lansdowne is assessed at $1,832,500, 7% more than 423 avenue Lansdowne ($1,709,100). Neither has a building permit on record. Neither is in a flood zone.
| 423 avenue Lansdowne | 508-510 avenue Lansdowne | |
|---|---|---|
| Type | House or building | 2 dwellings |
| City and borough | Westmount | Westmount |
| Built | 1910 | ≈ 1898 |
| Assessed (roll) | $1,709,100 | $1,832,500 |
| Since the previous roll | 0 % | 0 % |
| Welcome tax on that value | ≈ $23,747 | ≈ $25,598 |
| Lot | 384 m² | 359 m² |
| Floor area | 235 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 | 1 Note | 1 Note |
| Nearest metro | Vendôme, 870 m | Vendôme, 920 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 423 avenue Lansdowne Full report: 508-510 avenue Lansdowne