Parham Map. 1742.

From Richard Budgen's map of Sussex, 1724 The reference to the chapel seems to be referring to something just east of Rackham village itself. Overton's map of Sussex 1740 also shows the chapel, but clearly derives its information from Budgen. Could the buildings shown to the east of the big house at Parham be intended to represent Parham Street, ie. the main street of the village? They are shown separate to the House.
On further examination of the map, it is now thought that the possible three house shown next to the house, is in fact the church, although shown on the wrong side of the house.