A map is available at
http://www.streetmap.co.uk/streetmap.dll?G2M?X=419365&Y=187935&A=Y&Z=1
By Road
From the M4:
1. take the A419 north from J15 towards Cirencester, go straight over the 1st
roundabout then take the slip road signed "Oxford, Swindon, A420", at the
rounadbout take the 2nd exit.
2. at the next roundabout take the 3rd exit onto the A420 towards Oxford.
3. after ~300m you will reach another roundabout - take the 1st exit towards
South Marston Village.
4. After crossing the railway take the 3rd exit off the roundabout, again
towards South Marston.
5. follow the road for about 1 mile through to the centre of the village - turn
right into Old Vicarage Lane (if you go past the Carriers Arms you've gone to
far) , accomodation sis on the right straight after the Junction, opposite the
house with the very large aerials.
Parking - there is no parking at the hall, nearest parking is 100m past the hall
on the right, just after the school.