Our History  


Ginette Gadoury studied interior design at the Institute of Applied Arts and entrepreneurship at HEC. Then in 1967 she opened a design consulting firm and in 1970 she joined the Histart architectural firm.


The first Quebec interior design magazine, Décormag, is created by Ginette Gadoury, marking the beginning of the magazine industry in Quebec.


Picard Report; Report on the development axes of the city of Montreal. Ginette Gadoury is advisor for the study in matters related to design. Design is considered as one of the 6 development axes of the city of Montréal.


Establishement of La Médiathèque du design and the PID Agency (Les productions interface design).


Brigitte Gadoury joins the company. Launch of SIDIM, the Montreal International Interior Design Show.


Launch of INTÉRIEURS, a prestigious magazine of international content and calibre that plays an important role in promoting design, creators and companies involved in Quebec’s national and international reputation.


Montréal becomes a UNESCO City of Design and Mayor Gérald Tremblay, in his speech and in his press release, underlines the important role played by SIDIM and Ginette Gadoury in obtaining this nomination.

INTÉRIEURS magazine becomes bilingual and is distributed in specialized kiosks alongside other international magazines in all of Quebec, Toronto and New York, plus international subscriptions



Launch of the design competion, GRANDS PRIX DU DESIGN.


SIDIM’s 25th anniversary, which at that date became the only design and habitat show in Canada to remain Canadian owned.


Beginning of the collaboration between APDC-Asia Pacific Design Center and PID Agency. Laureates of GRANDS PRIX DU DESIGN Awards are presented and honored in China.


For the first time, GRANDS PRIX DU DESIGN Awards opens categories internationally in collaboration with the APDC with designers & architects from China submitting entries to the competiton.


20th anniversary of INTÉRIEURS magazine


10th anniversary of GRANDS PRIX DU DESIGN Awards


30th anniversary of SIDIM


In addition to opening onto new disciplines, the GRANDS PRIX DU DESIGN Awards becomes a worldwide competition! All categories of the contest are now open for entries from Québec, Canadian and international candidates.


The presentation of the Grand Prize Winners of the GRANDS PRIX DU DESIGN took place during two exclusive galas

September 18, 2021 at the Voltigeurs Armoury in Quebec City
for the disciplines:
• Architecture
• Urban Design, Landscape Architecture & Landscaping
• Construction & Real Estate Development
October 20, 2021 at the Plaza Centre-Ville de Montréal
for the disciplines:
• Interior Design
• Industrial Design & Product Design
• Brand Design


The award ceremony for the GRANDS PRIX DU DESIGN will take place during two exclusive galas..

September 16, 2022 at théâtre Le Capitole of Québec
for the disciplines:
• Interior Design
• Product
• Communication & Branding
October 12, 2022 at the Cabaret du Casino of Montréal
for the disciplines:
• Architecture
• Landscape & Territories
• Construction & Real Estate
• Art & Photography