644 avenue Lansdowne vs 645 avenue Lansdowne
Data as of October 29, 2026 · updated every week
644 avenue Lansdowne is the older building (1921); 645 avenue Lansdowne was built in 1953. 645 avenue Lansdowne is assessed at $2,657,500, 21% more than 644 avenue Lansdowne ($2,202,500). Neither has a building permit on record. Neither is in a flood zone.
| 644 avenue Lansdowne | 645 avenue Lansdowne | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1921 | 1953 |
| Assessed (roll) | $2,202,500 | $2,657,500 |
| Since the previous roll | 0 % | 0 % |
| Welcome tax on that value | ≈ $31,148 | ≈ $37,973 |
| Lot | 397 m² | 726 m² |
| Floor area | 220 m² | 309 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 | Villa-Maria, 920 m | Villa-Maria, 970 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 644 avenue Lansdowne Full report: 645 avenue Lansdowne