Towns & cities
Harlow
Town in the west of Essex, England
Wikipedia names Harlow as where 1 film or series was filmed; its page links to the sentence that says so. Wikidata records no shoot here yet.
1 place inside Harlow has a page of its own: listed below. Everything shot at it is already named above, recorded against Harlow as well.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Harlow. Each title’s page links to the sentence that says so.
A Clockwork OrangeScience fiction film1971
Filming locations inside Harlow
1 place inside Harlow, with a page of its own. Every production shot at it is already listed above, because Wikidata records it against Harlow too.
Filming locations nearby
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Landmarks & buildings
Princess Alexandra Hospital NHS Trust
England · 3 km south-west
NHS trust in Essex, England
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Castles & palaces
Down Hall
England · 6 km east
House in Hatfield Heath, Uttlesford, Essex, England, UK
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Landmarks & buildings
North Weald Airfield
England · 7 km south
Airport in the United Kingdom
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Landmarks & buildings North Weald railway station
England · 9 km south
Railway station in Essex, England, UK
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Streets & squares
Epping Ongar Railway
England · 9 km south-east
Heritage railway in Essex, England
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Towns & cities
Hoddesdon
England · 9 km west
Town in Hertfordshire, England