266 avenue Lansdowne vs 421 avenue Lansdowne

Data as of October 29, 2026 · updated every week

421 avenue Lansdowne is the older building (1895); 266 avenue Lansdowne was built in 1925. 266 avenue Lansdowne is assessed at $5,501,600, 144% more than 421 avenue Lansdowne ($2,257,800). Neither has a building permit on record. Neither is in a flood zone.

266 avenue Lansdowne421 avenue Lansdowne
Type16 dwellingsHouse or building
City and boroughWestmountWestmount
Built1925≈ 1895
Assessed (roll)$5,501,600$2,257,800
Since the previous roll+4 %0 %
Welcome tax on that value≈ $80,635≈ $31,978
Lot796 m²321 m²
Floor area1,453 m²391 m²
Notice of deteriorationNoNo
City’s right of first refusalNoNo
HeritageNoNo
In a flood zoneNoNo
Building permits on record00
Findings 3 Note 2 Note
Nearest metroVendôme, 760 mVendôme, 860 m

The full report for each address explains every finding and shows the full permit and value history.

Full report: 266 avenue Lansdowne Full report: 421 avenue Lansdowne

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