US President Donald Trump wants to build a triumphal arch across from the Lincoln Memorial in Washington DC, the latest in his efforts to make over the capital city in his style.

The so-called Arc de Trump would commemorate the country's 250th anniversary next year and is reportedly being privately funded by Trump's supporters.

A real estate developer by trade, Trump teased plans last week with renderings for the structure being laid out during an Oval Office meeting.

His other second-term developments include a gilded makeover for the White House, paving over the Rose Garden and constructing a $250m ballroom, as well as the clearing of homeless encampments throughout the capital.

It's not unusual for a sitting president or first lady to update the White House, but Trump appears to have his sights set on a farther reaching and widely seen development with the new monument.