The Hitman's Bodyguard filmed at Harrow Civic Centre, Harrow. The circular chamber used for the international court is this 1973 west London council building, since demolished. On screen it's International Court of Justice, The Hague.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
Planning the trip? The United Kingdom travel atlas covers money, language and getting aroundand everything filmed in Harrow is on one page
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Harrow and it tells you what was shot around you, how to get there, and whether you can actually go in.
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