Commercial condo - 510 Boul. St-Laurent #PH-500, Montréal (Ville-Marie)
AAA LOCATION | FULL-FLOOR PENTHOUSE
THE SIEUR-DE-CADILLAC BUILDING
The building benefits from an exceptional location at the corner of Saint-Laurent Boulevard and Notre-Dame Street, in the heart of Old Montreal. Within walking distance of all services and amenities: Place-d'Armes metro station, Montreal Courthouse, Convention Centre, Quartier des Spectacles, Gare Viger, CHUM, parks, the Old Port, as well as an unmatched selection of restaurants, bistros, and cafés.
This century-old building, converted into divided co-ownership in 2004, is ideally located directly across from the Montreal Courthouse. It is primarily occupied by law firms and various professionals who appreciate its strategic location.
Since 2020, co-owners have invested over $3,000,000 in the state-of-the-art restoration of the masonry on both façades, helping preserve and enhance the building's value. The work, including the restoration of the copper cornices, was carried out with great care under municipal supervision. The City also contributed $500,000 in 2025. Today, the building stands as a remarkable example of restoration within the historic district of Old Montreal.
The building features an elevator, a secure key fob access system, and an intercom for visitors. Central hot water heating (gas) is included in the condo fees, as well as hot water, helping the unit reduce energy costs with Hydro-Québec.
SUITE PH-500
Truly one of a kind, this expansive corner unit of 2,700 sq.ft. occupies the entire top floor of the building. It was fully renovated and reconfigured in 2008 by the current owner.
The layout includes a modern kitchen, 2 enclosed offices, 2 private washrooms (men's and women's), as well as a server room with its own dedicated air conditioning unit. The cathedral ceiling enhances both natural light and the sense of space in the open-concept area.
Suite PH-500 features its own central air conditioning system. To comply with recent municipal regulations, the rooftop unit is fully replaced in Spring 2026.
An electrical room of approximately 72 sq. ft. is also located within the suite. While not frequently accessed, it houses equipment servicing suites 500, 400, 300, and 301 (see servitude created in November 2025 and its new Certificate of location).
Previously configured with multiple enclosed offices, PH-500 offers strong layout potential. It would be relatively easy for a buyer to add up to 9 additional enclosed offices, each with an exterior window, as ventilation ducts and sprinklers remain in place.
PH-500 is currently vacant, available for immediate occupancy, and is sold with the existing furniture (37 workstations).
For more information and a visit, please contact the listing broker and ask for the full documentation package and seller's declarations form he completed and signed.
Offered at municipal assessment value!

