The Ngāti Hāua rohe is a vast estate with many natural resources. Though the rohe was shared with other iwi and hapū Ngāti Hāua maintained its own distinctness. The tribal estate was communally held. Its boundaries were in large part determined by Ngāti Hāua kāinga, awa, and maunga geographical features.
Ngāti Hāua practices of kaitiakitanga, rāhui, and tapu tikanga ensured the sustainability of the tribal estate. All authority and decision making processes pertaining to lands and resources were conducted according to Ngāti Hāua tikanga through the authority of tribal rangatira.
Tragically, the imposition of a foreign land tenure system via Crown acts and legislation destroyed tribal land tikanga and rangatira authority by redefining the tribe’s estate and replacing traditional decision making processes.
In July 2014, the Crown recognised Ngāti Hāua as one of four Large Natural Groups (LNG) in the Whanganui River District.
On 2 July 2016, at a Ngāti Hāua Iwi Trust hui-ā-tau (AGM), it was agreed that the Ngāti Hāua Iwi Trust seek a mandate to represent ngā uri o Ngāti Hāua in Treaty settlement negotiations with the Crown for the comprehensive settlement of all the historical Treaty of Waitangi claims of Ngāti Hāua.