For most morning and day-time services you can park in the Hatfield House car park. This is accessed through George’s Gate at the roundabout where there is a large Citroen and Peugeot car dealership. The postcode for this is AL9 5HX for Sat Nav.
You will need to park in the car park, walk up past the Old Palace and turn left down to Fore Street and the church.
If you are visiting St. Etheldreda's in conjuction with a trip to Hatfield House you can find details of opening times here on the Hatfield House website.
You can download a tour leaflet HERE.