Category:Grade I listed houses in Wales

• Grade I listed houses in the Vale of Glamorgan‎ (6 C)

A

• Abercamlais‎ (1 F)
• Amroth Castle‎ (1 F)

B

• Bodrhyddan Hall‎ (20 F)

C

• Castle House, Usk‎ (5 F)
• Chapter House, Brecon‎ (2 F)
• Cochwillan‎ (2 F)

F

• Fferm, Leeswood and Pontblyddyn‎ (2 F)
• Ffynone‎ (2 F)
• Foxhall Newydd‎ (7 F)

G

• Gloddaeth Hall‎ (5 F)
• Golden Grove, Flintshire‎ (2 F)
• Golden Lodge, Conwy‎ (1 F)
• Great Castle House, Monmouth‎ (10 F)

H

• Hafoty, Llansadwrn‎ (3 F)
• Halghton Hall‎ (1 F)
• Henblas, Llanasa‎ (2 F)

I

• Ivy Cottage, Margam‎ (2 F)

K

• Kinmel Hall‎ (10 F)

L

• Llwyn-celyn Farmhouse‎ (5 F)
• Lydstep Palace‎ (5 F)

M

• Maenan Hall‎ (2 F)
• Margam Castle‎ (2 C, 33 F)
• Monaughty House‎ (2 F)
• Monkton Old Hall‎ (5 F)

N

• Nantclwyd y Dre‎ (2 C, 155 F)
• Nercwys Hall‎ (2 F)
• Newton House, Brecon‎ (3 F)

O

• Old Gwernyfed‎ (1 F)

P

• Park House, Cardiff‎ (7 F)
• Pen-y-Clawdd Court‎ (2 F)
• Penarth Fawr‎ (12 F)
• Penpont Manor House‎ (2 F)
• Pentrehobyn‎ (2 F)
• Plas Glynllifon‎ (18 F)
• Plas Newydd, Anglesey - House‎ (1 C, 21 F)
• Plas Taliaris‎ (1 F)
• Plas Teg‎ (14 F)
• Plas Uchaf‎ (3 F)

R

• Rhual‎ (3 F)

S

• Sker House‎ (10 F)
• St Fagans Castle‎ (5 C, 50 F)

T

• Treberfydd House‎ (1 F)
• Tredegar House, Newport‎ (3 C, 155 F)
• Trefecca Fawr‎ (1 F)
• Trevor Hall, Llangollen‎ (5 F)
• Tudor Merchant's House, Tenby‎ (10 F)

V

• Vaynol Hall‎ (12 F)
• Vaynol Old Hall‎ (1 F)