Consumers' Gas Building, Renaissance Revival building in Toronto, Canada.

The Consumers' Gas Building at 19 Toronto Street is an Italianate/neo-Renaissance office building. Its 1852 core was the gas company's head office; David B. Dick added the 19 Toronto Street facade to the north in 1876, then in 1899 built the unified facade treating both structures as one. Stone & Kohn renovated it in 1983 for Counsel Trust Company.

The Consumers' Gas Building was first built in 1852 as the company's head office at 19 Toronto Street, and the company stayed at this location for 125 years. The 19 Toronto Street facade, designed by David B. Dick, was added to the north in 1876. Dick also built the unified facade treating the two structures as one in 1899. The last renovations were completed in 1983 by Stone & Kohn architects for new owners, Counsel Trust Company.

The Consumers' Gas company kept its head office at 19 Toronto Street for 125 years, from 1852 until the 1970s. The building now houses the Italian restaurant Don Alfonso 1890 and the Rosewater Room event space, both run by the Liberty Entertainment Group. Visitors can enter as diners or event guests.

The building stands at 19 Toronto Street, a short walk from Yonge Street in downtown Toronto. Visitors reach the 1876 and 1899 facades directly from the sidewalk; the interior holds the Don Alfonso 1890 restaurant and the Rosewater Room event venue, so entry depends on dining or event bookings.

Two separate buildings were merged into one unified structure through an innovative late-1800s approach to urban design. This solution shows how architects creatively adapted existing structures instead of demolishing and rebuilding.