17 January 2022: Filming began with Tom Burke (Cormoran Strike) and Holliday Grainger (Robin Ellacott).
23 January 2022: Filming on Denmark Street took place with Tom and Holliday.
5 February 2022: Scenes were filmed in Fulmer, Buckinghamshire, with Tom, Holliday, and Fionnula Flanagan. Robin’s old Land Rover was also present.
7 February 2022: Scenes with Syrus Lowe (Max Priestwood) were filmed. Many more cast members were announced.
Mid February 2022: Scenes were filmed at Holloway Prison.
17 February 2022: A scene was filmed in at a convenience store.
https://twitter.com/alistaircoleman/status/1494350407879086090?s=21&t=bx-JNYYTzZG_dO5eB1-0Dw
21 February 2022: Filming began in Skegness, Lincolnshire, at the train station around midday. After the train station, scenes were filmed outside the North Parade Hotel, which was renamed The Allardice.
22 February 2022: Scenes were filmed inside ‘The Allardice’/North Parade Hotel, and later outside.
23 February 2022: Scenes with Tom Burke and Holliday Grainger were shot at the beach in Skegness. Later, a police interrogation scene was filmed inside The Courthouse.
24 February 2022: Filming took place in Ward and Uxbridge.
28 February 2022: Filming took place in the studio for the week.
7 March 2022: Filming began in Cornwall at Holywell Bay.
8 March 2022: Filming took place outside the Victory Inn, St Mawes.
9 March 2022: Filming took place with Holliday Grainger in Falmouth at the Pier Cafe on the pier. Later, a scene with Tom and Holliday walking towards the Land Rover took place outside the Palacio Lounge on the Moor. That evening, scenes were shot in Port Navas.
10 March 2022: Scenes on the St Mawes ferry from Falmouth were shot, as well as a scene on the pier.
12 March 2022: Scenes at Ted and Joan’s house took place in Port Navas.
13 March 2022: Filming for Anna and Kim’s house took place in Falmouth on Tredynas Road.
14 March 2022: Scenes were filmed in St Mawes again.
15-16 March 2022: Filming took place in Slough/Chalfont St Peter.
17 March 2022: Filming took place in Waterloo and on Albemarle Way in Clerkenwell.
20 March 2022: Filming took place in Dunstable.
22 March 2022: Filming took place in Ealing with stunt police cars present. Read an article on filming in Ealing here: https://www.mylondon.news/news/west-london-news/quiet-ealing-street-turned-tv-23510222
7 April 2022: Filming took place at Micklefield Hall, Rickmansworth.
17 April 2022: Filming for Troubled Blood wrapped.