He wāhanga te Papa Whenua o Te Tiriti o Waitangi o Te Papawhenua o te Waitangi National Trust, kei roto ko te 506 heketea. I whakatūria te Waitangi National Trust e tētahi Ture Pāremata ki te whakahaere i te papawhenua. Nā tana pukapuka tarahiti, he mea tuhi i te 1932, i whakatakoto ngā whāinga mā te Poari Kaitiaki me te Papawhenua o Waitangi. Ka whai wāhi ki ēnei te whakatika me te whakarauora i te Wharenoho o mua tērā, i runga anō i tā Rore Bledisloe tono, i tapaina anō ko te Whare Tiriti.
Tae noa mai ki tēnei rā ko ngā mema o te poari he kanohi o ngā tāngata kua whai hononga tika ki tēnei pae hītori. Kei te Kāwana Tianara o te wā te motika ki te kōwhiri kia noho hei Whakaruruhau o te Tarahiti.
I te tau 2016 i whakapūmautia e te Poari Kaitiaki tētahi kamupene āpiti, Waitangi Limited, ki te whakahaere i ngā mahi ā-rā o Te Papawhenua o te Tiriti o Waitangi me te papawhenua whānui ake. E mahi ana te Heamana me ngā kaitiaki hei rōpū whakaruruhau mō Waitangi Limited, ā, e whakahaeretia ana e te Tumu Whakarae, mō te Poari Kaitiaki.