While this site has participated in Doors Open Ontario in the past, it may not be part of the current season’s program. Please check the Home page for this year’s events and participating sites. For Toronto and Ottawa, check their local websites to confirm.

Connaught Buildingin-person Doors Open Ottawa

  • In-person
  • Guided tours available
  • Parking
  • Photography allowed
Connaught Building

Built in modified Norman style and designed by David Ewart, Connaught opened in 1915 and was named after the Duke of Connaught, third son of Queen Victoria and Governor General of Canada 1911-16. Designated as a classified federal heritage building primarily for its architectural significance, the structure is considered to be the Crown jewel of the Canada Revenue Agency.

Contact info

555 Mackenzie Avenue
Ottawa, Ontario



Year built: 1915
Building type:Government buildingHistorical landmark
Architect: David Ewart
Architectural style:Gothic revival

Dates/hours open

Jun 03, 10:00am - Jun 04, 04:00pm

Saturday and Sunday: 10 a.m. to 4 p.m.