Preparation has begun in Popua to build a golf course, a park and canals.
RNZI reports Society president 'Ana Taufe'ulungaki said the site was where Tongan royalty was established, where the Lapita people arrived, and where Captain James Cook and his crew were welcomed.
Dr Taufe'ulungaki also said the area hosted ancient royal pigeon snaring grounds and played a large part in Tongan mythology.
In 2015, Parliament accepted a petition and agreed to protect the site but Prime Minister 'Akilisi Pohiva is now leading developments there.
