4011-4021 rue Parthenais vs 4575-4579 rue Parthenais
Data as of November 1, 2026 · updated every week
4575-4579 rue Parthenais is the older building (1910); 4011-4021 rue Parthenais was built in 1924. 4011-4021 rue Parthenais is assessed at $1,701,800, 60% more than 4575-4579 rue Parthenais ($1,063,800). 4011-4021 rue Parthenais has 7 building permits on record, 4575-4579 rue Parthenais has 5. Neither is in a flood zone.
| 4011-4021 rue Parthenais | 4575-4579 rue Parthenais | |
|---|---|---|
| Type | 6 dwellings | 3 dwellings |
| City and borough | Montréal · Le Plateau-Mont-Royal | Montréal · Le Plateau-Mont-Royal |
| Built | 1924 | 1910 |
| Assessed (roll) | $1,701,800 | $1,063,800 |
| Since the previous roll | +5 % | 0 % |
| Welcome tax on that value | ≈ $32,371 | ≈ $16,625 |
| Lot | 450 m² | 204 m² |
| Floor area | 597 m² | 301 m² |
| Notice of deterioration | No | No |
| City’s right of first refusal | No | No |
| Heritage | Yes | Yes |
| In a flood zone | No | No |
| Building permits on record | 7 · Jul 2026 | 5 · Mar 2010 |
| Findings | 1 Serious 2 Check 5 Note | 1 Serious 1 Check 3 Note |
| Nearest metro | Frontenac, 910 m | Préfontaine, 1.5 km |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 4011-4021 rue Parthenais Full report: 4575-4579 rue Parthenais