366 avenue Grosvenor vs 666 avenue Grosvenor
Data as of October 29, 2026 · updated every week
366 avenue Grosvenor is the older building (1905); 666 avenue Grosvenor was built in 1920. 666 avenue Grosvenor is assessed at $2,035,900, 34% more than 366 avenue Grosvenor ($1,524,900). Neither has a building permit on record. Neither is in a flood zone.
| 366 avenue Grosvenor | 666 avenue Grosvenor | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1905 | 1920 |
| Assessed (roll) | $1,524,900 | $2,035,900 |
| Since the previous roll | +10 % | +19 % |
| Welcome tax on that value | ≈ $20,984 | ≈ $28,649 |
| Lot | 210 m² | 367 m² |
| Floor area | 160 m² | 217 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, 580 m | Villa-Maria, 720 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 366 avenue Grosvenor Full report: 666 avenue Grosvenor