text: Address of the main part (to eastern end) of the building north of the church car park is :-
  The Old School
  27 Main Street
  Prickwillow
  Ely
  CB7 4UN
  
  The smaller part of the building (to the western end) is number 25.
  
  My info is from copyright source so I can't add to OSM, needs a survey.