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Postal addresses for Welsh Government offices.

North Wales

Holyhead

Timekeeper's Office
Port of Holyhead
Holyhead
LL65 1DQ

Caernarfon

Victoria Dock
Caernarfon
LL55 1TH

Caernarfon office on Google Maps

Llandudno Junction

Sarn Mynach
Llandudno Junction
LL31 9RZ

Llandudno Junction office on Google Maps

Wrexham

Grosvenor Lodge
1 Grosvenor Road
Wrexham
LL11 1BS

Mid Wales

Aberystwyth

Rhodfa Padarn
Llanbadarn Fawr
Aberystwyth
SY23 3UR

Llandrindod Wells

Welsh Government
County Hall
Spa Road East
Llandrindod Wells
LD1 5HA

Llandrindod Wells office on Google Maps

Newtown

Ladywell House
Newtown
Powys
SY16 1JB

South west Wales

Carmarthen

Government Buildings
Picton Terrace
Carmarthen
SA31 3BT

Carmarthen office on Google Maps

Milford Haven

Fisheries office
Suite 3 Cedar Court 
Havens Head Business Park
Milford Haven
SA73 3LS

Milford Haven office on Google Maps

Swansea

Llys y Ddraig 
Penllergaer Business Park
Swansea
SA4 9NX

Swansea office on Google Maps

South east Wales

Merthyr Tydfil

Rhydycar Business Park 
Merthyr Tydfil
CF48 1UZ

Merthyr Tydfil office on Google maps

Newport

Oak House
Cleppa Park
Newport
NP10 8BD

Bedwas

Ty'r Afon
Bedwas Road
Bedwas
Caerphilly
CF83 8WT

Bedwas office on Google Maps

Cardiff

Welsh Government Offices 
Cathays Park 
King Edward VII Avenue
Cardiff
CF10 3NQ

Cathays Park office on Google Maps
Visiting Cathays Park: guidance

Tŷ Hywel
Cardiff Bay
Cardiff
CF99 1NA

London

25 Victoria Street
City of Westminster
London
SW1H 0EX

020 7799 5883