| Name of Historic Park/ Garden | Community Council |
| Y Bermo: Panorama Walk | Y Bermo (part of this historic park/ garden lies within the Snowdonia National Park) |
| Boduan | Buan |
| Bryn Bras Castle | Llanrug |
| Caernarfon: Morfa Common Park | Caernarfon |
| Cefnamlwch | Tudweiliog |
| Glasfryn | Llanystumdwy |
| Glynllifon | Llandwrog |
| Penrhyn Castle | Llandygai |
| Plas Bodegroes | Llannor |
| Plas yn Rhiw | Aberdaron |
| Portmeirion | Penrhyndeudraeth |
| Rhiwlas | Llandderfel |
| Tan yr Allt | Porthmadog |
| Vaynol | Pentir |
| Wern | Dolbenmaen |
