Well actually there isn’t one, but it’s Platterwell Lane (East Town Lane), East Town, Pilton.
As there are so few houses in the road, the post code for the whole road is BA4 4NX, but the field will be clearly signposted. See the map below for the exact location. Lat/Long is 51.163055, -2.545323
The field is really easy to find and once you’re on the lane there are no turnings, but it’s very narrow and twisty so please go slowly. It’s recommended you drive to Pilton first rather than try and come from the fosseway.
From Pilton end, head towards East Town along East Town Lane (this turns into Platterwell Lane). Go past all the houses and Bourne Farm on your left, continue for mile round a sharp right hand bend, then round a sharp left hand bend with a farm on your right, then round another sharp right hand then a sharp left bend. The field is on your left after about 1/4 of a mile. It will be clearly signposted. The field is approx 5 mins (1.2 miles) drive from the crossroads in Pilton.
From Shepton end (not recommended), go down the fosseway towards Yeovil/Pylle on the Fosse and as you go over the brow of the hill there is a really really tiny turning on your right (not recommended for larger vehicles). It’s very easy to miss so you will need to go very slowly. Proceed a mile down this road and the field is on your right on a sharp left hand bend. The wedding will be clearly signposted. The field is approx 2 mins drive from the main road (0.7 miles).