A condo building with 154 units on the assessment roll, built in 2007. 7 building permits since 1990. Inside Édifice de la Unity Building. Square Victoria-Oaci metro station is 240 m away. Newer than 93% of the buildings on rue De La Gauchetière Ouest.
Data as of November 1, 2026 · updated every week
All 154 units with their roll values, floor areas and changes, and what to ask the syndicate.
One-time payment, no subscription · PDF for your broker and notary · Secure payment with Stripe
Compared with every address on the island of Montréal, from the assessment roll, Montréal open data and the STM timetable.
The full report explains every finding like this one.
What the record says, what it means for a buyer and what to ask the seller and the notary: for this finding and every other one, in the full report.
No unit with that number in this building.
From $34,963,500 on the roll in force in 2022 to $47,915,800 on the current roll: +37%.
Welcome tax estimated with the City of Montréal’s 2026 brackets on the assessed value; the notary calculates it on the higher of the price and the adjusted value.
Ville de Montréal open data: 311 requests are counted around the address, never tied to one home; shops come from the City’s survey of ground-floor commercial premises; distances are in a straight line.
Figures for the census dissemination area that contains the address (a few blocks, usually 400 to 700 people), with the whole city in brackets. Source: Statistics Canada, 2021 Census of Population.
The nearest school of each kind in a straight line, not the school of the address: each school service centre (French) and school board (English) sets its own territories, so ask it. English public schools require a certificate of eligibility under the Charter of the French language. Source: Ministère de l’Éducation du Québec.
Work on the street (City permits)
In Ville-Marie, the borough issued 34 construction permits and 26 demolition permits in the last two years. About the borough
In the full report: incidents reported to the SPVM within 300 m over the last 12 months, by type.
The typical unit is assessed at $319,900 on the 2026-2027-2028 assessment roll; the building has 154 units. More
About $2,909 on its assessed value of $319,900. The tax is calculated on the highest of the price paid, the value in the deed and the adjusted assessed value, so the real amount may be higher. More
From $34,963,500 on the roll in force in 2022 to $47,915,800 on the current roll: +37%. The previous roll had it at $43,249,300. More
In 2007, according to the assessment roll.
154 condo units, according to the assessment roll.
No. It is not in a flood zone mapped by the Quebec government. More
No. The Ville de Montréal has registered no notice of deterioration on this building. More
Yes. It is protected or listed as heritage: work on it needs the City’s or Quebec’s approval. More
Only as the owner’s or tenant’s principal residence, from June 10 to September 10, 31 days at most, with a yearly City permit and a CITQ registration number. In a condo, the declaration of co-ownership must allow it or the syndicate must authorize it. More
The City has issued 7 permits since 1990. The latest, from Sep 2026: travaux intérieurs. More
Square Victoria-Oaci is 240 m away in a straight line.
About 12 minutes on foot to McGill station.
Compare 345 rue De La Gauchetière Ouest with another address · Watch this address: email me when its records change
Checked against Montréal open data and the Quebec assessment roll on November 1, 2026. Lot outlines come from the City’s assessment units and have no legal value; the certificate of location decides.