620 avenue Grosvenor vs 643 avenue Grosvenor
Data as of October 29, 2026 · updated every week
643 avenue Grosvenor is the older building (1909); 620 avenue Grosvenor was built in 1910. 643 avenue Grosvenor is assessed at $2,299,100, 9% more than 620 avenue Grosvenor ($2,107,500). Neither has a building permit on record. Neither is in a flood zone.
| 620 avenue Grosvenor | 643 avenue Grosvenor | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1910 | 1909 |
| Assessed (roll) | $2,107,500 | $2,299,100 |
| Since the previous roll | +19 % | +19 % |
| Welcome tax on that value | ≈ $29,723 | ≈ $32,597 |
| Lot | 330 m² | 443 m² |
| Floor area | 248 m² | 282 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 | 2 Note |
| Nearest metro | Villa-Maria, 790 m | Villa-Maria, 810 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 620 avenue Grosvenor Full report: 643 avenue Grosvenor