645 avenue Grosvenor vs 650 avenue Grosvenor
Data as of October 29, 2026 · updated every week
645 avenue Grosvenor is the older building (1909); 650 avenue Grosvenor was built in 1910. 645 avenue Grosvenor is assessed at $2,903,600, 26% more than 650 avenue Grosvenor ($2,312,500). Neither has a building permit on record. Neither is in a flood zone.
| 645 avenue Grosvenor | 650 avenue Grosvenor | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1909 | 1910 |
| Assessed (roll) | $2,903,600 | $2,312,500 |
| Since the previous roll | +19 % | +19 % |
| Welcome tax on that value | ≈ $41,665 | ≈ $32,798 |
| Lot | 443 m² | 450 m² |
| Floor area | 291 m² | 200 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 | Villa-Maria, 810 m | Villa-Maria, 740 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 645 avenue Grosvenor Full report: 650 avenue Grosvenor