310 avenue Grosvenor vs 643 avenue Grosvenor
Data as of October 29, 2026 · updated every week
310 avenue Grosvenor is the older building (1901); 643 avenue Grosvenor was built in 1909. 643 avenue Grosvenor is assessed at $2,299,100, 18% more than 310 avenue Grosvenor ($1,940,400). Neither has a building permit on record. Neither is in a flood zone.
| 310 avenue Grosvenor | 643 avenue Grosvenor | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1901 | 1909 |
| Assessed (roll) | $1,940,400 | $2,299,100 |
| Since the previous roll | +10 % | +19 % |
| Welcome tax on that value | ≈ $27,217 | ≈ $32,597 |
| Lot | 288 m² | 443 m² |
| Floor area | 208 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 | 2 Note | 2 Note |
| Nearest metro | Vendôme, 560 m | Villa-Maria, 810 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 310 avenue Grosvenor Full report: 643 avenue Grosvenor