The chapel changed hands a number of times until with the old Catholic order being replaced during the Protestant Reformation, a Royal Commissions, set up on 25 May 1563, conveyed Ste Apolline's Chapel to Thomas Effart, who was a leading Protestant and Jurat.
The chapel appears on the 1787 Duke of Richmond's map of Guernsey by William Gardner on a plot of three Vergée (around 1.2 acres) planted with an apple orchard.