There is rumoured to be a tunnel from the white horse to the buttery and then from the buttery to the cathedral.
Regarding a tunnel from the crypt to the cathedral. Apparently Keats while upstairs being "entertained" watched the monks lock the gate to the cathedral. Now did he have xray specs on ??? That''s the pic of the guy gesturing towards the shelves is where the door way used to be
The first mention of the White Horse in South Street was in 1533, in a 1660 description the building had a ''hall, a great and a small parlour a kitchen, paved yard and a well'' with five chambers upstairs no mention is made of a cellar although it would most likely have had one, earlier in 1574, Thomas Suter was taken to court for ''holding unlawful games at the cellar against the White Horse'' and in 1686 the landlord Mr Booker, leased the Crypt opposite for use as a cellar, he also kept pigs there. the floor level of the Crypt is about five feet lower that the street level, so I doubt if any tunnels existed there.
Random articles of interest
whyke lodge
It was under the Crypt and right next to the cathedral
Maureen Williams, 82, of Westgate, recalled a school trip into the rumoured tunnels under Chichester when she was at Chichester High School for Girls.
She estimates she was in her early teens at the time and said she chose to share her memories after reading about the search for evidence in this newspaper.
Between The Drive’s western and southern ends, Charles Stride built a private estate in c.1905 which included a nine hole golf course designed by James Braid, a lodge (Uplands), and a mansion (Woodland Place) with tree-lined grounds which, as Rew Lane, was developed in the late 1950s. The golf course was too close to the Goodwood course to be a commercial success and it was given up for gravel extraction immediately prior to the first World War, with a mineral branch line connected later to the Chichester-Midhurst railway. His golf course and pavilion is mentioned in https://golfsmissinglinks.co.uk/index.php/england/south-east/sussex/851-sus-summersdale-golf-club-chichester
The Graylingwell Heritage Project has been a community based heritage and arts programme located in Chichester, West Sussex.
The original Victorian buildings had a central boiler house with the water tower which is, after the Cathedral spire, by far the tallest building in Chichester. And if you go up to the Trundle and look down on Chichester, the only two buildings you can see are the Cathedral spire and the Graylingwell water tower.
MB My mum worked 27 east street and when it flooded in the 90s they found a big cellar and you could look down into an area which was like a tunnel
st johns church
About 50 years ago in the vestry of St. John’s Church In Chichester a flag stone was taken up by some teenagers and a tunnel was revealed. Apparently it runs along under St Johns Street in a south / north direction