Mae Gradd II* wedi cael ei rhoi i'r adeilad, ar sail ei ddiddordeb pensaernïol a hanesyddol, ac mae Cadw o'r farn bod y capel o ddiddordeb pensaernïol arbennig fel capel coffa, capel hardd sy'n gweddu i'r ardal o'i gwmpas – ac yn mynegi hanes yr adeilad mewn modd pwerus ond cynnil.
Listed at II* for both its special architectural and historic interest Cadw considers that the building is of special architectural interest as a modern memorial chapel, beautifully modelled and adapted to its site, and giving powerful but subtle expression to the circumstances of its building.