4270 rue Frontenac vs 4455-4475 rue Frontenac
Data as of November 1, 2026 · updated every week
4270 rue Frontenac is the older building (1927); 4455-4475 rue Frontenac was built in 1987. 4455-4475 rue Frontenac is assessed at $9,367,300, 1712% more than 4270 rue Frontenac ($517,100). 4270 rue Frontenac has 1 building permits on record, 4455-4475 rue Frontenac has 3. Neither is in a flood zone.
| 4270 rue Frontenac | 4455-4475 rue Frontenac | |
|---|---|---|
| Type | House or building | House or building |
| City and borough | Montréal · Le Plateau-Mont-Royal | Montréal · Le Plateau-Mont-Royal |
| Built | 1927 | 1987 |
| Assessed (roll) | $517,100 | $9,367,300 |
| Since the previous roll | +13 % | +35 % |
| Welcome tax on that value | ≈ $5,867 | ≈ $327,588 |
| Lot | 1,160 m² | 14,230 m² |
| Floor area | 302 m² | 8,828 m² |
| Notice of deterioration | No | No |
| City’s right of first refusal | Yes | No |
| Heritage | No | No |
| In a flood zone | No | No |
| Building permits on record | 1 · Nov 1994 | 3 · Nov 2025 |
| Findings | 2 Serious 4 Note | 1 Check 4 Note |
| Nearest metro | Préfontaine, 880 m | Préfontaine, 970 m |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 4270 rue Frontenac Full report: 4455-4475 rue Frontenac