From London. Get onto A3 and continue south of Guildford. Turn off A3 signposted to Milford and Petworth. Follow signs for A283. Once in Petworth go straight over mini roundabout and as you hit the one way system and with the church on your right St. Marys is on the corner on the right opposite a monument which stands in the middle of the road.
From south. Follow the A285 from Chichester, signposted Petworth. Once in Petworth go straight over mini roundabout and follow one way system until you get to St. Marys Church on your left and St. Marys is on the corner, on the right. Go right at the monument and find somewhere to park.
From east. Follow A283. Then turn left onto A285 and follow directions as coming from the south.
From west. Get onto A272 and follow signs to Petworth. At mini roundabout turn left and follow directions as coming from the south.