This cache is not at the published co ordinates but is not far away.
You will need to complete the 6 stages of Balcombe Heights Estate to gather the information to the final location, there is a digit in each cache. Byo pen.
Cache #4 is not in play now due to muggles, so there is no D to find.
S33 46.ABC
E150 59.EFG
Gur svany pnpur unf orra erybpngrq njnl sebz gur vapernfrq ahzore bs frphevgl pnzrenf naq njnl sebz gur znva pnecnex. Fbzr fgrnygu znl or arrqrq nf zhttyrf ner nggraqvat shapgvbaf be FRF furq be jnyxvat ol. Cyrnfr ercynpr nf lbh sbhaq vg.