Henley's was a factory that made electrical cables, and was established in 1837. More on the history here. The remains of the actual factory itself is only accessible if you're a proper skinny bastard who's not worried about getting ripped to shreds from shards of glass & equipped with a step ladder (which I am not and did not have). Someone's gone to quite a bit of effort to keep us lot out; it's been boarded up with wood...
WT Henley Cable Works Air Raid Shelter, Nortfleet - August 2017
WT Henley Cable Works Air Raid Shelter, Nortfleet - August 2017