The capital project, an initiative of former President Joko Widodo, seeks to move Indonesia's seat of power about 1,200 km (745 miles) away from sinking and congested Jakarta to Nusantara, located in a jungle of Borneo island.
"He (Prabowo) even hopes that the inauguration of the next Indonesia president and vice president in 2029 could be done in Nusantara," forestry minister, Raja Juli Antoni, said on Saturday on his Instagram account.
The remarks on Prabowo's intentions come amid doubts that he will pursue the project at the same speed as Widodo, who tacitly backed him for the election, and whether the state budget can stretch to fund Nusantara alongside his multi-billion dollar free-meal programme, his signature election campaign promise.
Raja Juli, however, said further there should be no questions of Prabowo's commitment to continue his predecessor's legacy project, as he has already guaranteed he would complete it.
"For him (Prabowo), Nusantara is the capital of politics. That is why in the next four years, apart from government buildings, we must complete buildings for legislative and judiciary bodies," the minister added.
Key government buildings, like the presidential palace and some state officials housing were recently completed, while toll road and airport construction are underway.
Since construction started in 2022, the project has faced difficulties in attracting foreign investment, which will help to expedite its progress.
The government had agreed that only a fifth of the total budget would come from the state.
It received its first foreign investment last month when Chinese property firm Delonix Group invested 500 billion rupiah ($31.80 million) to build hotels and offices.