Dol-Y-Dintir is a new development, so may not be in your Sat Nav.
This page should help you locate the property.
At the north end of Cardigan, between Aldi and Tesco, turn into Heol Helyg.
Go 200 meters then turn right into Heol Derw.
Follow the road 300 meters round to the left into Dol-Y-Dintir.
After another 100m, turn Left into Maes Y Felin.
Ahead and to the right is the property.
Google Maps will get you close; follow it to the end of Maes Y Felin
Finally follow the map below to the property.