Where was The Deadly Affair filmed?

1966 film by Sidney Lumet

The Deadly Affair (1966) was filmed in London, Greater London, City of Westminster, Hyde Park, Chelsea, St James's Park and 8 more places, 14 places named in its Wikipedia article, in the United Kingdom. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

See them on the map → Wikipedia Source data