1657-1661 rue Viau vs 578-580 rue Viau
Data as of November 1, 2026 · updated every week
578-580 rue Viau is the older building (1900); 1657-1661 rue Viau was built in 1910. 1657-1661 rue Viau is assessed at $872,300, 35% more than 578-580 rue Viau ($646,700). 1657-1661 rue Viau has 3 building permits on record, 578-580 rue Viau has 1. Neither is in a flood zone.
| 1657-1661 rue Viau | 578-580 rue Viau | |
|---|---|---|
| Type | 3 dwellings | 2 dwellings |
| City and borough | Montréal · Mercier-Hochelaga-Maisonneuve | Montréal · Mercier-Hochelaga-Maisonneuve |
| Built | 1910 | ≈ 1900 |
| Assessed (roll) | $872,300 | $646,700 |
| Since the previous roll | +7 % | +11 % |
| Welcome tax on that value | ≈ $12,795 | ≈ $8,283 |
| Lot | 223 m² | 232 m² |
| Floor area | 272 m² | 276 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 | 3 · Mar 2022 | 1 · Oct 2026 |
| Findings | 1 Serious 1 Check 4 Note | 1 Serious 2 Check 3 Note |
| Nearest metro | Viau, 1.2 km | Viau, 1.5 km |
The full report for each address explains every finding and shows the full permit and value history.
Full report: 1657-1661 rue Viau Full report: 578-580 rue Viau