DEVELOPMENT
INSTITUTE
Regulating development on behalf of the Haudenosaunee Chiefs Confederacy Council
The HDI’s mandate is to ensure that all development initiatives are consistent with the environmental and cultural values of the Haudenosaunee people. We are tasked to administer a regulatory framework that identifies, registers, and monitors development on Haudenosaunee Territory
Eh káti naiohtónhake nonkwa’nikòn:ra
What is Engagement
An established, early and ongoing engagement process is necessary to avoid treaty right infringements. Successful engagement means that HDI approves of every stage of the proposed development.
Jurisdiction
The HDI operates within the jurisdiction defined by the Mohawk Great Law of Peace and regulates development in areas that include, but are not limited to, those described in the Haldimand Proclamation, the 1701 Nanfan Treaty, and the Mitchell Map.
Archaeology, Development and Environmental Experts
HDI’s dedicated team of archaeology , development, and environmental experts ensures that every stage of development is conducted consistent with Haudenosaunee values and law in mind.
News and Publications
News and community updates from HDI
News and Publications
News and updates from nation, clan and treaty partners.
Explore HDI
Services & Resources
This portal facilitates a wide range of online services to nations, clans, and treaty partners.
Events & Programs
Upcoming events in the community.
22
June
Sunday
Tree Planting Event!
June 22, 2025 @
10:30 AM -
1:00 PM
DEYAÖHÖ:GO FARM
25
April
Friday
EARTH DAY – FREE TREE GIVE AWAY
April 25, 2025 @
5:00 PM -
7:00 PM
Old Council House, 1799 4th Line, Ohsweken, ON