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Griffintown · Le Sud-Ouest

Le William (373 rue des Seigneurs)

373 rue des Seigneurs · Montréal

$1,049,000
Starting price
17
Total units
1894
Built
2013
Year converted
Industrial
Loft type
13 min
Metro Georges-Vanier

Espace Loft is a real estate team at eXp Agence Immobilière.

Available units

Units available at Le William (373 rue des Seigneurs).

1unit for salefrom $1,049,000

Every loft currently listed at this address, whatever the brokerage. We keep the list current ourselves.

Inventory verified on October 16, 2026

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The building’s story

Picture Montreal's factories in the late 1800s: machines driven by long leather belts, and someone had to make those belts. At the corner of rue William and rue des Seigneurs, that was here. The Robin and Sadler Co. produced leather belting, fire hose and lace leather on this site. The brick building, set on a stone base, still stands.

Built in the mid-1890s, the factory is one of the buildings the City of Montreal cites as part of the industrial heritage north of the Lachine Canal. In 2013, Figurr collectif d'architectes turned it into 17 lofts, adding two storeys set back from the street. It became the heart of the Le William complex, flanked by two new buildings.

Inside, the factory still shows in the brick walls, the wood plank ceilings, the original beams and columns. Your eye travels up to ceilings of 9.5 to 12 feet depending on the floor. Lofts range from 766 sq ft to 1,526 sq ft. At the top, some penthouses stretch over two levels and open onto a private terrace.

Shared life happens on the roof: a heated outdoor pool, an urban chalet and common terraces, with a gym and indoor parking below.

Outside is Griffintown. Rue Notre-Dame Ouest is steps away, with its cafés and restaurants. The Lachine Canal bike path is a few streets south. Georges-Vanier metro is a 13-minute walk.

The 373 speaks to people who want the brick and wood of a real factory, in a building of about twenty lofts, with the amenities of a larger complex.

Every loft has a story. Le William's begins with the leather belts that once turned Montreal's factories. Our job is to help you find the one that becomes yours. Olivier Mailloux and Amélie Flanagan, real estate brokers, follow the Griffintown loft market closely and work with buyers and sellers across Montreal.

Architectural features

  • Former Robin and Sadler Co. leather belting factory, built in the mid-1890s
  • Brick on a stone base, cited by the City of Montreal as part of the industrial heritage north of the canal
  • Converted in 2013 into 17 lofts by Figurr collectif d'architectes, with two set-back storeys added
  • According to our information, units range from 766 sq ft to 1,526 sq ft
  • Ceilings of 9.5 to 12 feet depending on the floor
  • Brick walls, wood plank ceilings, original beams and columns depending on the unit
  • Some penthouses on two levels with a private terrace
  • Heated outdoor pool, urban chalet and rooftop terraces, shared with the Le William complex
  • Gym, elevator and indoor parking
  • Georges-Vanier metro a 13-minute walk away
  • Lachine Canal bike path a few streets away

Building amenities

  • Outdoor pool
  • Urban chalet
  • Shared terrace
  • Gym
  • Elevator
  • Indoor parking
  • Intercom

Page updated on

Intérieur d'un loft du 373, rue des Seigneurs : mur de brique, poutres de bois et plafond de planches
For illustration: the inside of a unit (Le William (373 rue des Seigneurs)). Every unit is different.

The numbers · 2025

A few numbers on the building.

Units sold
0
Condo fees / sq. ft. / month
$0.72

Source: Centris, transactions closed from January 1 to December 31, 2025, compiled by Espace Loft.

The complete sales and rental statistics for this building.

Get the complete statistics

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Nearby

The good addresses, a short walk away.

Rue Notre-Dame Ouest, the Lachine Canal bike path and Georges-Vanier metro (Orange line, 13-min walk).

  • Metro Georges-Vanier13 min à pied
See the neighbourhood page

6 loft buildings on file· © OpenStreetMap

Olivier Mailloux, Real estate broker, Espace Loft
Olivier Mailloux
Real estate broker · OACIQ D9568

Your broker for this building

We know Le William (373 rue des Seigneurs).

We follow this building one listing at a time: the corner units, the floors that catch the sun, what the co-ownership fees actually cover. That’s been our specialty since 2010.

“My job isn’t to sell you this building. It’s to tell you honestly whether it’s the right one for you, or whether we should look elsewhere.”

Whether you’re comparing two buildings, ready to make an offer, or just curious what a loft looks like inside, we take the time it takes. No pressure.

OACIQ · D9568Espace Loft · eXp Agence ImmobilièreFR · EN

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