456 avenue Mountain vs 490 avenue Mountain
Data as of October 29, 2026 · updated every week
490 avenue Mountain is the older building (1868); 456 avenue Mountain was built in 1902. They are assessed at about the same value ($2,519,000). Neither has a building permit on record. Neither is in a flood zone.
| 456 avenue Mountain | 490 avenue Mountain | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1902 | ≈ 1868 |
| Assessed (roll) | $2,519,000 | $2,567,100 |
| Since the previous roll | +8 % | +8 % |
| Welcome tax on that value | ≈ $35,896 | ≈ $36,617 |
| Lot | 340 m² | 571 m² |
| Floor area | 267 m² | 264 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 | Atwater, 810 m | Atwater, 900 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 456 avenue Mountain Full report: 490 avenue Mountain