Grade I listed buildings in Snowdonia National Park

There are 21 Grade I listed buildings in Snowdonia National Park.

• Church of St Celynin
  Church
• Church of St Celynin
  Bridge
• Church of St Mark
  House
• Church of St Mark
  Church
• Church of St Mary and St Egryn
  Church
• Church of St Tanwg
  Church
• Church of St. Gwyddelan
  House
• Church of St. Gwyddelan
  Church
• Cymer Abbey
  Abbey
• Dolwyddelan Castle
  Castle
• Gwydir Uchaf Chapel
  Chapel
• Gwydir Uchaf Chapel
• Harlech Castle
  Castle
• Llanrhychwyn Church
  Church
• Llanrhychwyn Church
  Villa
• St Celynin's Old Church
  Church
• St Celynin's Old Church
  House
• St Philip's Church
  Church
• St Philip's Church
  House
• Waterloo Bridge
  House
• Waterloo Bridge
  Bridge