305 Rue de Bellechasse
Montréal, QC H2S 1W9 Rosemont-La Petite-Patrie

Rate Upon Request

Office For Lease • 1,321+ SF

Property Details

Property Type Office
Year Built 1910
Total Building Size 88,149 SF
Tenancy Multiple
Building Class B

80 Transit Score

98 Walk Score

17 Spaces Available

Name	Space Use	Size	Rent
Bsmt Floor Ste B100	Industrial	5,619 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Space Type: Relet
Bsmt Floor Ste B101	Industrial	3,274 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Space Type: Relet
Bsmt Floor Ste B102	Industrial	2,345 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Space Type: Relet
1st Floor Ste 101	Office	1,728 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Built out as: Standard Office Space Type: Relet
1st Floor Ste 106	Office	2,100 SF	Rate Upon Request
Date available: Sep 2026 Lease term: 5 - 10 Years Service type: Triple Net Built out as: Standard Office Space Type: New In Contiguous block: 4,070 SF
1st Floor Ste 107	Office	1,970 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Built out as: Standard Office Space Type: Relet In Contiguous block: 4,070 SF
2nd Floor Ste 203	Office	1,335 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Space Type: Relet
2nd Floor Ste 207	Office	2,300 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Space Type: Relet
2nd Floor Ste 208	Office	1,398 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Space Type: Relet In Contiguous block: 2,853 SF
2nd Floor Ste 209	Office	1,455 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Space Type: Relet In Contiguous block: 2,853 SF
2nd Floor Ste 211	Office	1,321 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Space Type: Relet
3rd Floor Ste 302	Office	1,330 SF	Rate Upon Request
Office space for rent in the CORTEX Lofts! + Renovated, move-in ready loft offices + Walking distance to Beaubien and Rosemont metro stations + Conveniently accessible by public transit + Located in the heart of a lively neighborhood Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Built out as: Standard Office Space Type: Relet In Contiguous block: 2,680 SF
3rd Floor Ste 304	Office	1,350 SF	Rate Upon Request
Office space for rent in the CORTEX Lofts! + Renovated, move-in ready loft offices + Walking distance to Beaubien and Rosemont metro stations + Conveniently accessible by public transit + Located in the heart of a lively neighborhood Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Built out as: Standard Office Space Type: Relet In Contiguous block: 2,680 SF
3rd Floor Ste 307	Office	1,990 SF	Rate Upon Request
Office space for rent in the CORTEX Lofts! + Renovated, move-in ready loft offices + Walking distance to Beaubien and Rosemont metro stations + Conveniently accessible by public transit + Located in the heart of a lively neighborhood Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Built out as: Standard Office Space Type: Relet In Contiguous block: 5,640 SF
3rd Floor Ste 308	Office	1,500 SF	Rate Upon Request
Office space for rent in the CORTEX Lofts! + Renovated, move-in ready loft offices + Walking distance to Beaubien and Rosemont metro stations + Easily accessible by public transit + Located in the heart of a vibrant neighborhood Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Built out as: Standard Office Space Type: Relet In Contiguous block: 5,640 SF
3rd Floor Ste 310	Office	2,150 SF	Rate Upon Request
Office space for rent in the CORTEX Lofts! + Renovated, move-in ready loft offices + Walking distance to Beaubien and Rosemont metro stations + Conveniently accessible by public transit + Located in the heart of a lively neighborhood Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Built out as: Standard Office Space Type: Relet In Contiguous block: 5,640 SF
4th Floor Ste 407	Office	1,993 SF	Rate Upon Request
Date available: Now Lease term: 5 - 10 Years Service type: Triple Net Space Type: Relet

Description

Cortex Lofts offers turn-key loft-style workspaces in a fully renovated brick-and-beam building in Montreal. The historic property features stone lintels and large early-20th-century windows, with modern finishes throughout—perfect for tech startups and creative teams.

Located on the border of Rosemont–La Petite-Patrie and Mile-Ex, just 10 minutes from downtown, Cortex Lofts is easily accessible by metro, bus, bike, or on foot. Surrounded by trendy restaurants, cafés, and a vibrant creative community, it’s the ideal hub for Montreal’s new generation of workplaces.

                
                    Highlights
                
                                Cortex Lofts at 305 de Bellechasse Street is a completely renovated brick-and-beam building presenting a modern vision for the office environment.
                            
                                Meet all business needs in quasi-turnkey workspaces with wood flooring, white-painted walls, light fixtures, a conference room, and kitchenettes.
                            
                                Situated at the border of the Rosemont-La Petite-Patrie and Mile-Ex neighbourhoods and surrounded by restaurants, cafés, and points of interest.
                            
                                Cortex Lofts is located 10 minutes from the heart of downtown and near two metro stations, four bus lines, a Bixi station, and several bike paths.