But the president will avoid London nearly entirely during his trip, which has been characterised as an attempt to avoid humiliation over the planned protests surrounding his visit.
The largest demonstration is expected in central London on Friday where a giant "Trump baby" balloon will fly close to Parliament after being given the go-ahead by Mayor of London Sadiq Khan.
The president has at his side at all times a White House doctor and one of five rotating military aides who carry the nuclear "football" - equipped with communication tools and a book with prepared war plans.
He said the stunt aims to "hold up a mirror" to Mr Trump's "toddler-like politics".
But Brexit champion Nigel Farage predicted there would be a "real clash" on Brexit.
"But I'm going to a pretty hot spot right now with a lot of resignations".
After a North Atlantic Treaty Organisation summit where he provoked a crisis session to force allies to raise their defence spending, Trump landed in Britain having described the closest U.S. ally in Europe as being in turmoil over Brexit.
Russian Federation has strongly denied the charge.
That turmoil includes the resignations of May's Brexit and foreign ministers over her plan to retain close ties with the European Union after leaving the bloc in March.
May will host a black-tie dinner for Trump at the stately home that will be attended by senior ministers and about 100 business leaders, including the likes of Blackstone group, Blackrock, Diageo, McLaren and Arup.
The US president's brash style and hardline "America First" policies have caused consternation across Britain's political spectrum and society.
Similar protests are planned on Thursday evening outside the United States ambassador's home at Regent's Park and in Scotland when Mr Trump visits on Saturday.
He arrives about a year and a half after Prime Minister Theresa May invited him for a state visit, an invitation that was met intense opposition in the United Kingdom - nearly 2 million people signed a petition to rescind the invite.
"It is in the interests of the U.K.to stand up and take a firm moral stance", said Zoe Gardner, a researcher and spokesperson of the Stop Trump Coalition, which is organizing protests this week in cities across the country. His late mother hailed from Scotland, and he owns two luxury golf courses there.