521-555 rue des Seigneurs vs 660 rue des Seigneurs
Data as of November 1, 2026 · updated every week
521-555 rue des Seigneurs is the older building (1972); 660 rue des Seigneurs was built in 1985. 521-555 rue des Seigneurs is assessed at $18,678,900, 1551% more than 660 rue des Seigneurs ($1,131,500). 521-555 rue des Seigneurs has 6 building permits on record, 660 rue des Seigneurs has 2. Neither is in a flood zone.
| 521-555 rue des Seigneurs | 660 rue des Seigneurs | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Montréal · Le Sud-Ouest | Montréal · Le Sud-Ouest |
| Built | 1972 | 1985 |
| Assessed (roll) | $18,678,900 | $1,131,500 |
| Since the previous roll | +36 % | +2 % |
| Welcome tax on that value | ≈ $700,052 | ≈ $18,113 |
| Lot | 5,944 m² | 268 m² |
| Floor area | 5,496 m² | 146 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 | 6 · Dec 2020 | 2 · Jun 2025 |
| Findings | 3 Note | 1 Check 3 Note |
| Nearest metro | Georges-Vanier, 500 m | Georges-Vanier, 370 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 521-555 rue des Seigneurs Full report: 660 rue des Seigneurs