336-340 avenue Grosvenor vs 520-522 avenue Grosvenor
Data as of October 29, 2026 · updated every week
520-522 avenue Grosvenor is the older building (1900); 336-340 avenue Grosvenor was built in 1905. 336-340 avenue Grosvenor is assessed at $2,685,000, 59% more than 520-522 avenue Grosvenor ($1,691,900). Neither has a building permit on record. Neither is in a flood zone.
| 336-340 avenue Grosvenor | 520-522 avenue Grosvenor | |
|---|---|---|
| Type | 3 dwellings | 2 dwellings |
| City and borough | Westmount | Westmount |
| Built | 1905 | ≈ 1900 |
| Assessed (roll) | $2,685,000 | $1,691,900 |
| Since the previous roll | 0 % | 0 % |
| Welcome tax on that value | ≈ $38,386 | ≈ $23,489 |
| Lot | 373 m² | 258 m² |
| Floor area | 454 m² | 291 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 | Vendôme, 570 m | Vendôme, 790 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 336-340 avenue Grosvenor Full report: 520-522 avenue Grosvenor