4150 rue Sainte-Catherine Ouest vs 4221-4229 rue Sainte-Catherine Ouest
Data as of October 29, 2026 · updated every week
4221-4229 rue Sainte-Catherine Ouest is the older building (1941); 4150 rue Sainte-Catherine Ouest was built in 1979. 4150 rue Sainte-Catherine Ouest is assessed at $31,700,000, 200% more than 4221-4229 rue Sainte-Catherine Ouest ($10,560,000). Neither has a building permit on record. Neither is in a flood zone.
| 4150 rue Sainte-Catherine Ouest | 4221-4229 rue Sainte-Catherine Ouest | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Westmount | Westmount |
| Built | 1979 | 1941 |
| Assessed (roll) | $31,700,000 | $10,560,000 |
| Since the previous roll | −9 % | +22 % |
| Welcome tax on that value | ≈ $473,611 | ≈ $156,511 |
| Lot | 3,258 m² | 1,815 m² |
| Floor area | 14,549 m² | 3,235 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 | 1 Note |
| Nearest metro | Atwater, 410 m | Atwater, 530 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 4150 rue Sainte-Catherine Ouest Full report: 4221-4229 rue Sainte-Catherine Ouest