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.

Idea Exchange, Old Post Officein-person Doors Open Waterloo Region

  • In-person
  • Full wheelchair access
  • Guided tours available
  • Kid-friendly
  • National Historic Site (Canada)
  • Parking
  • Washrooms
  • Photography allowed
Idea Exchange, Old Post Office

The Old Post Office is an award-winning, all-digital public library, offering breathtaking views of the Grand River and free technology programs for all ages. All four floors of the historical building will be open during Doors Open, including the Makerspace, Creative Studios, Discovery Centre, Riverview and Reading Room. The clock tower and the heritage staircase will also be featured.

Contact info

12 Water Street South
Cambridge, Ontario
E-mail: oporeception@ideaexchange.org


Year built: 1885; 2018
Building type:LibraryPost office
Architect: Thomas Fuller, Ottawa (1885); RDH Architects, Toronto (2018)
Architectural style:Romanesque revival

Dates/hours open

Sep 16, 10:00am - Sep 16, 04:00pm

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