400 Av Atlantic
Montréal, QC H2V 4M1
Le 400 Atlantic · Office Property For Lease · 44,027 SF

Now leasing at 400 Atlantic Avenue — a fully modernized brick-and-beam landmark offering character-rich loft office space in one of Montreal’s most dynamic districts. This ten-storey heritage property was comprehensively revitalized in 2021 with a focus on performance, sustainability, and long-term asset quality. Capital improvements include the replacement of all original windows with energy-efficient insulated systems, the installation of central air conditioning, and a new electrical power supply room — delivering modern infrastructure while preserving the building’s authentic industrial identity. Availabilities range from efficient 800-square-foot suites to a fully built-out 15,000-square-foot penthouse featuring a private rooftop terrace. The building boasts an on-site bakery and café from renowned Hof Kelsten on the ground floor. Other property amenities include exterior parking, secured bicycle storage facility, on-site showers, and a freight elevator. Strategically located adjacent to Montreal’s AI Hub and near the Université de Montréal science campus, 400 Atlantic offers exceptional connectivity via Highway 40 and the Blue Line of the metro. Positioned at the crossroads of Mile-Ex, Mile End, Little Italy, and Outremont, the property benefits from a vibrant mix of dining, culture, and urban energy