The cache is NOT at the posted coordinates. You need to complete the associated adventure lab (Chieveley 'high'-lights) and use the information provided by that in order to derive the coordinates of this cache as follows:
N 51 27.ABC W 001 18.DEF
A = Manor Lane
B = Manor Lane + Church Lane + Graces Lane
C = Graces Lane + Sowbury Park + High Street
D = Manor Lane + Sowbury Park + High Street
E = Manor Lane + High Street
F = Manor Lane - Church Lane