List of Cadw properties

Cadw is the historic environment service of the Welsh Government which manages historical buildings and ancient monuments in Wales.

Property Image Type Access Unitary authority Community Historic County Grid Reference Coordinates Ref.
Barclodiad y Gawres Burial Chamber Free Isle of Anglesey Aberffraw Anglesey SH329707 53°12′26″N 4°30′13″W / 53.2072°N 4.5036°W / 53.2072; -4.5036 (Barclodiad y Gawres Burial Chamber)
Basingwerk Abbey Religious Free Flintshire Holywell Flintshire SJ196774 53°17′17″N 3°12′27″W / 53.288°N 3.2074°W / 53.288; -3.2074 (Basingwerk Abbey)
Beaumaris Castle Castle
World Heritage Site.
Pay Isle of Anglesey Beaumaris Anglesey SH607762
postcode LL58 8AP
53°15′54″N 4°05′23″W / 53.2649°N 4.0897°W / 53.2649; -4.0897 (Beaumaris Castle)
Blaenavon Ironworks Industrial
World Heritage Site.
Free Torfaen Blaenavon Monmouthshire SO249092
postcode NP4 9RN
51°46′37″N 3°05′21″W / 51.777°N 3.0892°W / 51.777; -3.0892 (Blaenavon Ironworks)
Bodowyr Burial Chamber Free Isle of Anglesey Llanidan Anglesey SH462681 53°11′18″N 4°18′10″W / 53.1882°N 4.3029°W / 53.1882; -4.3029 (Bodowyr Burial Chamber)
Brecon Gaer Roman Fort Free Powys Yscir Brecknockshire SO003296 51°57′23″N 3°27′06″W / 51.9565°N 3.4517°W / 51.9565; -3.4517 (Brecon Gaer Roman Fort)
Bronllys Castle Castle Free Powys Bronllys Brecknockshire SO149347 52°00′16″N 3°14′27″W / 52.0044°N 3.2407°W / 52.0044; -3.2407 (Bronllys Castle)
Bryn Celli Ddu Burial Chamber Free Isle of Anglesey Llanddaniel Fab Anglesey SH507701 53°12′28″N 4°14′10″W / 53.2077°N 4.2361°W / 53.2077; -4.2361 (Bryn Celli Ddu Burial Chamber)
Bryntail Industrial Free Powys Llanidloes Without Montgomeryshire SN913868 52°28′08″N 3°36′03″W / 52.4688°N 3.6008°W / 52.4688; -3.6008 (Bryntail Lead Mine Buildings)
Caer Gybi Roman Fort Free Isle of Anglesey Holyhead Anglesey SH247826 53°18′42″N 4°37′55″W / 53.3116°N 4.632°W / 53.3116; -4.632 (Caer Gybi Roman Fortlet)
Caer Lêb Enclosure Free Isle of Anglesey Llanidan Anglesey SH472674 53°10′55″N 4°17′12″W / 53.1819°N 4.2866°W / 53.1819; -4.2866 (Caer Lêb)
Caer y Tŵr Hill Fort Free Isle of Anglesey Trearddur Anglesey SH219829 53°18′47″N 4°40′29″W / 53.3131°N 4.6747°W / 53.3131; -4.6747 (Caer y Tŵr)
Caerleon Roman Fortress Roman Fort Free Newport Caerleon Monmouthshire ST337906 51°36′37″N 2°57′32″W / 51.6103°N 2.9588°W / 51.6103; -2.9588 (Caerleon Roman Fortress and Baths)
Caernarfon Castle Castle
World Heritage Site.
Pay Gwynedd Caernarfon Caernarvonshire SH477626
postcode LL55 2AY
53°08′22″N 4°16′37″W / 53.1394°N 4.277°W / 53.1394; -4.277 (Caernarfon Castle)
Caernarfon town walls Town Walls
World Heritage Site.
Free Gwynedd Caernarfon Caernarvonshire SH479626 53°08′28″N 4°16′31″W / 53.141°N 4.2754°W / 53.141; -4.2754 (Caernarfon Town Walls)
Caerphilly Castle Castle Pay Caerphilly Caerphilly Glamorganshire ST155870 51°34′35″N 3°13′14″W / 51.5763°N 3.2206°W / 51.5763; -3.2206 (Caerphilly Castle)
Caerwent Roman Town Free Monmouthshire Caerwent Monmouthshire ST469907 51°36′45″N 2°46′06″W / 51.6126°N 2.7683°W / 51.6126; -2.7683 (Caerwent Roman Town)
Capel Garmon Burial Chamber Free Conwy Bro Garmon Denbighshire SH817543 53°04′23″N 3°45′57″W / 53.073°N 3.7658°W / 53.073; -3.7658 (Capel Garmon Burial Chamber)
Capel Lligwy Religious Free Isle of Anglesey Moelfre Anglesey SH499863 53°21′08″N 4°15′23″W / 53.3523°N 4.2564°W / 53.3523; -4.2564 (Capel Lligwy)
Carew Cross Religious Free Pembrokeshire Carew Pembrokeshire SN047037 51°41′53″N 4°49′40″W / 51.698°N 4.8278°W / 51.698; -4.8278 (Carew Cross)
Carreg Cennen Castle Castle Pay Carmarthenshire Dyffryn Cennen Carmarthenshire SN668190 51°51′16″N 3°56′07″W / 51.8545°N 3.9352°W / 51.8545; -3.9352 (Carreg Cennen Castle)
Carreg Coetan Burial Chamber Free Pembrokeshire Newport Pembrokeshire SN060394 52°01′07″N 4°49′42″W / 52.0186°N 4.8282°W / 52.0186; -4.8282 (Carreg Coetan Arthur Burial Chamber)
Carswell Medieval House Domestic Free (Ext.) Pembrokeshire Penally Pembrokeshire SN098010 51°40′34″N 4°45′08″W / 51.676°N 4.7523°W / 51.676; -4.7523 (Carswell Medieval House)
Castell Bryn Gwyn Prehistoric Free Isle of Anglesey Llanidan Anglesey SH465670 53°10′42″N 4°17′52″W / 53.1784°N 4.2979°W / 53.1784; -4.2979 (Castell Bryn Gwyn)
Castell Coch Castle Pay Cardiff Tongwynlais Glamorganshire ST130826 51°32′10″N 3°15′18″W / 51.536°N 3.2549°W / 51.536; -3.2549 (Castell Coch)
Castell y Bere Castle Free Gwynedd Llanfihangel-y-Pennant Merionethshire SH667085 52°39′30″N 3°58′16″W / 52.6583°N 3.9711°W / 52.6583; -3.9711 (Castell y Bere)
Chepstow, Bulwark Camp Prehistoric enclosure Free Monmouthshire Chepstow Monmouthshire ST538927 51°37′52″N 2°40′08″W / 51.6312°N 2.6689°W / 51.6312; -2.6689 (Chepstow Bulwarks Camp)
Chepstow Castle Castle Pay Monmouthshire Chepstow Monmouthshire ST533940 51°38′37″N 2°40′32″W / 51.6437°N 2.6755°W / 51.6437; -2.6755 (Chepstow Castle)
Chepstow Port Wall Town Walls Free Monmouthshire Chepstow Monmouthshire ST533937 51°38′25″N 2°40′34″W / 51.6404°N 2.6762°W / 51.6404; -2.6762 (Chepstow Port Wall)
Cilgerran Castle Castle Pay Pembrokeshire Cilgerran Pembrokeshire SN194431 52°03′25″N 4°38′03″W / 52.0569°N 4.6342°W / 52.0569; -4.6342 (Cilgerran Castle)
Coity Castle Castle Free Bridgend Coity Higher Glamorganshire SS923814 51°31′20″N 3°33′12″W / 51.5221°N 3.5534°W / 51.5221; -3.5534 (Coity Castle)
Conwy Castle Castle
World Heritage Site.
Pay Conwy Conwy Caernarvonshire SH783774
postcode LL32 8AY
53°16′48″N 3°49′32″W / 53.2801°N 3.8256°W / 53.2801; -3.8256 (Conwy Castle)
Conwy town walls Town Walls
World Heritage Site.
Free Conwy Conwy Caernarvonshire SH780776 53°16′54″N 3°49′52″W / 53.2817°N 3.8312°W / 53.2817; -3.8312 (Conwy Town Walls)
Criccieth Castle Castle Pay Gwynedd Criccieth Caernarvonshire SH499377 52°54′58″N 4°13′57″W / 52.916°N 4.2324°W / 52.916; -4.2324 (Criccieth Castle)
Cymer Abbey Religious Free Gwynedd Llanelltyd Merionethshire SH721195 52°45′29″N 3°53′46″W / 52.7581°N 3.8962°W / 52.7581; -3.8962 (Cymer Abbey)
Denbigh Castle Castle Pay Denbighshire Denbigh Denbighshire SJ051657 53°10′50″N 3°25′14″W / 53.1806°N 3.4206°W / 53.1806; -3.4206 (Denbigh Castle)
Denbigh Friary Religious Free Denbighshire Denbigh Denbighshire SJ059665 53°11′16″N 3°24′33″W / 53.1878°N 3.4091°W / 53.1878; -3.4091 (Denbigh Friary)
Denbigh Town Walls Town Walls Free Denbighshire Denbigh Denbighshire SJ052657 53°10′51″N 3°25′09″W / 53.1808°N 3.4191°W / 53.1808; -3.4191 (Denbigh Town Walls)
Leicester's Church Religious Free Denbighshire Denbigh Denbighshire SJ053659 53°10′56″N 3°25′08″W / 53.1822°N 3.419°W / 53.1822; -3.419 (Denbigh, Leicester's Church)
St Hilary's Chapel Religious Free Denbighshire Denbigh Denbighshire SJ052659 53°10′54″N 3°25′11″W / 53.1818°N 3.4198°W / 53.1818; -3.4198 (Denbigh, St Hilary's Chapel)
Derwen Churchyard Cross Religious Free Denbighshire Derwen Denbighshire SJ070507 53°02′45″N 3°23′18″W / 53.0457°N 3.3882°W / 53.0457; -3.3882 (Derwen Churchyard Cross)
Din Dryfol Burial Chamber Free Isle of Anglesey Aberffraw Anglesey SH395724 53°13′30″N 4°24′17″W / 53.225°N 4.4048°W / 53.225; -4.4048 (Din Dryfol Burial Chamber)
Din Lligwy Hut Group Free Isle of Anglesey Moelfre Anglesey SH497861 53°21′03″N 4°15′33″W / 53.3508°N 4.2592°W / 53.3508; -4.2592 (Din Lligwy Hut Group)
Dinefwr Castle Castle Free Carmarthenshire Llandeilo Carmarthenshire SN622224 51°52′36″N 4°01′07″W / 51.876776°N 4.018562°W / 51.876776; -4.018562 (Dinefwr Castle)
Dolbadarn Castle Castle Free Gwynedd Llanberis Caernarvonshire SH586598 53°07′00″N 4°06′51″W / 53.1166°N 4.1143°W / 53.1166; -4.1143 (Dolbadarn Castle)
Dolforwyn Castle Castle Free Powys Llandyssil Montgomeryshire SO151950 52°32′47″N 3°15′09″W / 52.5464°N 3.2525°W / 52.5464; -3.2525 (Dolforwyn Castle)
Dolwyddelan Castle Castle Pay Conwy Dolwyddelan Caernarvonshire SH721523 53°03′11″N 3°54′30″W / 53.0531°N 3.9084°W / 53.0531; -3.9084 (Dolwyddelan Castle)
Dryslwyn Castle Castle Free Carmarthenshire Llangathen Carmarthenshire SN554203 51°51′48″N 4°06′03″W / 51.8632°N 4.1007°W / 51.8632; -4.1007 (Dryslwyn Castle)
Dyffryn Ardudwy Burial Chamber Free Gwynedd Dyffryn Ardudwy Merionethshire SH588228 52°47′05″N 4°05′37″W / 52.7846°N 4.0937°W / 52.7846; -4.0937 (Dyffryn Ardudwy Burial Chamber)
Dyfi Furnace Industrial Free Ceredigion Ysgubor-y-coed Cardiganshire SN684950 52°32′16″N 3°56′25″W / 52.5378°N 3.9404°W / 52.5378; -3.9404 (Dyfi Furnace)
Eliseg's Pillar Religious Free Denbighshire Llantysilio Denbighshire SJ202445 52°59′32″N 3°11′21″W / 52.9921°N 3.1893°W / 52.9921; -3.1893 (Eliseg's Pillar)
Ewenny Priory Religious Free The Vale of Glamorgan Ewenny Glamorganshire SS912778 51°29′20″N 3°34′03″W / 51.4888°N 3.5676°W / 51.4888; -3.5676 (Ewenny Priory)
Ewloe Castle Castle Free Flintshire Hawarden Flintshire SJ288675 53°12′00″N 3°04′02″W / 53.2°N 3.0672°W / 53.2; -3.0672 (Ewloe Castle)
Flint Castle Castle Free Flintshire Flint Flintshire SJ246732 53°15′04″N 3°07′48″W / 53.2511°N 3.1301°W / 53.2511; -3.1301 (Flint Castle)
Grosmont Castle Castle Free Monmouthshire Grosmont Monmouthshire SO405244 51°54′55″N 2°51′57″W / 51.9154°N 2.8657°W / 51.9154; -2.8657 (Grosmont Castle)
Gwydir Uchaf Chapel Religious Free Conwy Trefriw Caernarvonshire SH794609 53°07′55″N 3°48′10″W / 53.1319°N 3.8028°W / 53.1319; -3.8028 (Gwydir Uchaf Chapel)
Hafoty Medieval House Domestic Free (Ext.) Isle of Anglesey Cwm Cadnant Anglesey SH562781 53°16′51″N 4°09′28″W / 53.2809°N 4.1579°W / 53.2809; -4.1579 (Hafoty Medieval House)
Harlech Castle Castle
World Heritage Site.
Pay Gwynedd Harlech Merionethshire SH581312
postcode LL46 2YH
52°51′37″N 4°06′33″W / 52.8602°N 4.1091°W / 52.8602; -4.1091 (Harlech Castle)
Haverfordwest Priory Religious Free Pembrokeshire Haverfordwest Pembrokeshire SM956151 51°47′51″N 4°57′51″W / 51.7976°N 4.9643°W / 51.7976; -4.9643 (Haverfordwest Priory)
Hen Gwrt Moated Site Domestic Free Monmouthshire Llantilio Crossenny Monmouthshire SO395151 51°49′53″N 2°52′42″W / 51.8315°N 2.8782°W / 51.8315; -2.8782 (Hen Gwrt Moated Site)
Holyhead Mountain Hut Circles Hut Group Free Isle of Anglesey Trearddur Anglesey SH212820 53°18′19″N 4°41′02″W / 53.3054°N 4.6838°W / 53.3054; -4.6838 (Holyhead Mountain Hut Circles)
Kidwelly Castle Castle Pay Carmarthenshire Kidwelly Carmarthenshire SN409070 51°44′23″N 4°18′20″W / 51.7398°N 4.3055°W / 51.7398; -4.3055 (Kidwelly Castle)
Lamphey Bishop's Palace Religious Free Pembrokeshire Lamphey Pembrokeshire SN018009 51°40′19″N 4°52′00″W / 51.672°N 4.8668°W / 51.672; -4.8668 (Lamphey Bishop's Palace)
Laugharne Castle Castle Pay Carmarthenshire Laugharne Township Carmarthenshire SN302107 51°46′11″N 4°27′44″W / 51.7696°N 4.4621°W / 51.7696; -4.4621 (Laugharne Castle)
Llangar Church Religious Pay Denbighshire Cynwyd Merionethshire SJ063424 52°58′16″N 3°23′45″W / 52.9712°N 3.3959°W / 52.9712; -3.3959 (Llangar Old Parish Church)
Llanmelin Wood Hill Fort Hill Fort Free Monmouthshire Caerwent Monmouthshire ST461925 51°37′45″N 2°46′46″W / 51.6291°N 2.7794°W / 51.6291; -2.7794 (Llanmelin Wood Hill Fort)
Llansteffan Castle Castle Free Carmarthenshire Llansteffan Carmarthenshire SN351101 51°45′56″N 4°23′27″W / 51.7655°N 4.3908°W / 51.7655; -4.3908 (Llansteffan Castle)
Llanthony Priory Religious Free Monmouthshire Crucorney Monmouthshire SO289278 51°56′41″N 3°02′11″W / 51.9448°N 3.0364°W / 51.9448; -3.0364 (Llanthony Priory)
Llawhaden Castle Castle Free Pembrokeshire Llawhaden Pembrokeshire SN073175 51°49′20″N 4°47′51″W / 51.8223°N 4.7976°W / 51.8223; -4.7976 (Llawhaden Castle)
Lligwy Burial Chamber Burial Chamber Free Isle of Anglesey Moelfre Anglesey SH501860 53°21′00″N 4°15′10″W / 53.3499°N 4.2529°W / 53.3499; -4.2529 (Lligwy Burial Chamber)
Loughor Castle Castle Free Swansea Llwchwr Glamorganshire SS564979 51°39′44″N 4°04′38″W / 51.6622°N 4.0771°W / 51.6622; -4.0771 (Loughor Castle)
Maen Achwyfan Cross Religious Free Flintshire Whitford Flintshire SJ128787 53°17′55″N 3°18′31″W / 53.2987°N 3.3085°W / 53.2987; -3.3085 (Maen Achwyfan Cross)
Margam Stones Museum Religious Pay Neath Port Talbot Margam Glamorganshire SS801864 51°33′49″N 3°43′52″W / 51.5637°N 3.7312°W / 51.5637; -3.7312 (Margam Stones Museum)
Monmouth Castle Castle Free Monmouthshire Monmouth Monmouthshire SO506128 51°48′45″N 2°43′00″W / 51.8125°N 2.7167°W / 51.8125; -2.7167 (Monmouth Castle)
Montgomery Castle Castle Free Powys Montgomery Montgomeryshire SO221967 52°33′48″N 3°09′00″W / 52.5632°N 3.1501°W / 52.5632; -3.1501 (Montgomery Castle)
Neath Abbey Religious Free Neath Port Talbot Dyffryn Clydach Glamorganshire SS738974 51°39′40″N 3°49′34″W / 51.6612°N 3.826°W / 51.6612; -3.826 (Neath Abbey and Gatehouse)
Newcastle Castle Castle Free Bridgend Bridgend Glamorganshire SS902800 51°30′32″N 3°34′59″W / 51.5089°N 3.583°W / 51.5089; -3.583 (Newcastle, Bridgend)
Newport Castle Castle Free Newport Stow Hill Monmouthshire ST311884 51°35′27″N 2°59′42″W / 51.5908°N 2.9951°W / 51.5908; -2.9951 (Newport Castle)
Ogmore Castle Castle Free The Vale of Glamorgan St Bride's Major Glamorganshire SS881769 51°28′50″N 3°36′41″W / 51.4805°N 3.6115°W / 51.4805; -3.6115 (Ogmore Castle)
Old Beaupre Castle Castle Free The Vale of Glamorgan Llanfair Glamorganshire ST008720 51°26′19″N 3°25′39″W / 51.4385°N 3.4274°W / 51.4385; -3.4274 (Old Beaupre Castle)
Oxwich Castle Castle Pay Swansea Penrice Glamorganshire SS497862 51°33′20″N 4°10′06″W / 51.5555°N 4.1683°W / 51.5555; -4.1683 (Oxwich Castle)
Parc le Breos Burial Chamber Free Swansea Ilston Glamorganshire SS537898 51°35′18″N 4°06′46″W / 51.5883°N 4.1128°W / 51.5883; -4.1128 (Parc le Breos Burial Chamber)
Penarth Fawr Medieval House ? Gwynedd Llanystumdwy Caernarvonshire SH419376 52°54′48″N 4°21′09″W / 52.9132°N 4.3524°W / 52.9132; -4.3524 (Penarth Fawr Medieval House)
Penmon Cross Religious Free Isle of Anglesey Llangoed Anglesey SH630807 53°18′21″N 4°03′24″W / 53.3058°N 4.0568°W / 53.3058; -4.0568 (Penmon Cross)
Penmon Dovecote Domestic Free Isle of Anglesey Llangoed Anglesey SH631807 53°18′20″N 4°03′21″W / 53.3056°N 4.0557°W / 53.3056; -4.0557 (Penmon Dovecote)
Penmon Priory Religious Free Isle of Anglesey Llangoed Anglesey SH630807 53°18′20″N 4°03′24″W / 53.3055°N 4.0568°W / 53.3055; -4.0568 (Penmon Priory)
St Seiriol's Well Religious Free Isle of Anglesey Llangoed Anglesey SH630808 53°18′23″N 4°03′24″W / 53.3064°N 4.0566°W / 53.3064; -4.0566 (Penmon, St Seiriol's Well)
Penrhos Feilw Standing Stones Prehistoric Free Isle of Anglesey Trearddur Anglesey SH227809 53°17′45″N 4°39′42″W / 53.2957°N 4.6618°W / 53.2957; -4.6618 (Penrhos Feliw Standing Stones)
Pentre Ifan Burial Chamber Free Pembrokeshire Nevern Pembrokeshire SN099370 51°59′57″N 4°46′12″W / 51.9991°N 4.7701°W / 51.9991; -4.7701 (Pentre Ifan Burial Chamber)
Plas Mawr, Conwy Domestic Pay Conwy Conwy Caernarvonshire SH780775 53°16′52″N 3°49′48″W / 53.2812°N 3.83°W / 53.2812; -3.83 (Plas Mawr)
Pont Minllyn Bridge Free Gwynedd Mawddwy Merionethshire SH859138 52°42′38″N 3°41′21″W / 52.7106°N 3.6891°W / 52.7106; -3.6891 (Pont Minllyn)
Presaddfed Burial Chamber Free Isle of Anglesey Bodedern Anglesey SH347808 53°17′57″N 4°28′51″W / 53.2992°N 4.4809°W / 53.2992; -4.4809 (Presaddfed Burial Chamber)
Raglan Castle Castle Pay Monmouthshire Raglan Monmouthshire SO417085 51°46′13″N 2°50′59″W / 51.7702°N 2.8498°W / 51.7702; -2.8498 (Raglan Castle)
Rhuddlan Castle Castle Pay Denbighshire Rhuddlan Flintshire SJ024779 53°17′21″N 3°27′54″W / 53.2891°N 3.465°W / 53.2891; -3.465 (Rhuddlan Castle)
Rug Chapel Religious Pay Denbighshire Corwen Merionethshire SJ064438 52°59′03″N 3°23′39″W / 52.9842°N 3.3942°W / 52.9842; -3.3942 (Rug Chapel / Llangar Old Parish Church)
Runston Chapel Religious Monmouthshire Mathern Monmouthshire ST496915 51°37′13″N 2°43′45″W / 51.6204°N 2.7293°W / 51.6204; -2.7293 (Runston Chapel)
Segontium Roman Fort Roman Fort Free Gwynedd Caernarfon Caernarvonshire SH485624 53°08′14″N 4°15′58″W / 53.1372°N 4.2662°W / 53.1372; -4.2662 (Segontium Roman Fort)
Skenfrith Castle Castle Free Monmouthshire Llangattock-Vibon-Avel Monmouthshire SO456203 51°52′43″N 2°47′25″W / 51.8786°N 2.7904°W / 51.8786; -2.7904 (Skenfrith Castle)
St Cybi's Well Religious Free Gwynedd Llangybi Gwynedd SH427413 52°56′45″N 4°20′32″W / 52.945735°N 4.342090°W / 52.945735; -4.342090 (St Cybi's Well)
St Davids Bishop's Palace Religious Pay Pembrokeshire St Davids Pembrokeshire SM750254 51°52′56″N 5°16′15″W / 51.8821°N 5.2708°W / 51.8821; -5.2708 (St Davids Bishop's Palace)
St Dogmaels Abbey Religious Free Pembrokeshire St Dogmaels Pembrokeshire SN164458 52°04′50″N 4°40′50″W / 52.0806°N 4.6806°W / 52.0806; -4.6806 (St Dogmaels Abbey and Coach House)
St Lythans burial chamber Burial Chamber Free The Vale of Glamorgan Wenvoe Glamorganshire ST100723 51°26′33″N 3°17′42″W / 51.4426°N 3.2951°W / 51.4426; -3.2951 (St Lythans Burial Chamber)
St Non's Chapel Religious Free Pembrokeshire St Davids Pembrokeshire SM750243 51°52′20″N 5°16′08″W / 51.8722°N 5.2689°W / 51.8722; -5.2689 (St Non's Chapel)
St Quentin's Castle, Llanblethian Castle Free The Vale of Glamorgan Cowbridge with Llanblethian Glamorganshire SS989741 51°27′27″N 3°27′23″W / 51.4576°N 3.4564°W / 51.4576; -3.4564 (St Quentin's Castle, Llanblethian)
St Winefride's Chapel and Holywell Religious Free Flintshire Holywell Flintshire SJ185762 53°16′38″N 3°13′25″W / 53.2771°N 3.2236°W / 53.2771; -3.2236 (St Winifred's Chapel and Holy Well)
Strata Florida Abbey Religious Pay Ceredigion Ystrad Fflur Cardiganshire SN746657 52°16′31″N 3°50′18″W / 52.2752°N 3.8383°W / 52.2752; -3.8383 (Strata Florida Abbey)
Swansea Castle Castle Free (External only) Swansea Swansea Glamorganshire SS657930 51°37′14″N 3°56′28″W / 51.6205°N 3.9411°W / 51.6205; -3.9411 (Swansea Castle)
Talley Abbey Religious Free Carmarthenshire Talley Carmarthenshire SN632327 51°58′35″N 3°59′32″W / 51.9765°N 3.9922°W / 51.9765; -3.9922 (Talley Abbey)
Tinkinswood Burial Chamber Free The Vale of Glamorgan St Nicholas and Bonvilston Glamorganshire ST092732 51°27′05″N 3°18′26″W / 51.4513°N 3.3072°W / 51.4513; -3.3072 (Tinkinswood Burial Chamber)
Tintern Abbey Religious Pay Monmouthshire Tintern Monmouthshire SO533000 51°41′49″N 2°40′36″W / 51.6969°N 2.6768°W / 51.6969; -2.6768 (Tintern Abbey)
Trefignath Burial Chamber Free Isle of Anglesey Trearddur Anglesey SH258805 53°17′36″N 4°36′51″W / 53.2932°N 4.6142°W / 53.2932; -4.6142 (Trefignath Burial Chamber)
Tregwehelydd Standing Stone Prehistoric Free Isle of Anglesey Tref Alaw Anglesey SH340831 53°19′10″N 4°29′33″W / 53.3195°N 4.4926°W / 53.3195; -4.4926 (Tregwehelydd Standing Stone)
Tretower Castle Castle Pay Powys Llanfihangel Cwmdu Brecknockshire SO184212 51°53′02″N 3°11′10″W / 51.8839°N 3.1862°W / 51.8839; -3.1862 (Tretower Castle)
Tretower Court Castle Pay Powys Llanfihangel Cwmdu Brecknockshire SO185211 51°53′00″N 3°11′05″W / 51.8832°N 3.1846°W / 51.8832; -3.1846 (Tretower Court)
Twthill Castle Mound Free Denbighshire Rhuddlan Flintshire SJ026776 53°17′14″N 3°27′43″W / 53.2871°N 3.4619°W / 53.2871; -3.4619 (Twthill, Rhuddlan)
Tŷ Mawr Standing Stone Prehistoric Free Isle of Anglesey Holyhead Anglesey SH253809 53°17′48″N 4°37′17″W / 53.2967°N 4.6214°W / 53.2967; -4.6214 (Ty Mawr Standing Stone)
Tŷ Newydd Burial Chamber Burial Chamber Free Isle of Anglesey Llanfaelog Anglesey SH344738 53°14′09″N 4°28′57″W / 53.2359°N 4.4824°W / 53.2359; -4.4824 (Tŷ Newydd Burial Chamber)
Valle Crucis Abbey Religious Pay Denbighshire Llantysilio Denbighshire SJ204441 52°59′20″N 3°11′12″W / 52.9888°N 3.1867°W / 52.9888; -3.1867 (Valle Crucis Abbey)
Weobley Castle Castle Pay Swansea Llanrhidian Lower Glamorganshire SS478927 51°36′46″N 4°11′57″W / 51.6128°N 4.1993°W / 51.6128; -4.1993 (Weobley Castle)
White Castle Castle Free Monmouthshire Llantilio Crossenny Monmouthshire SO379167 51°50′46″N 2°54′08″W / 51.8461°N 2.9022°W / 51.8461; -2.9022 (White Castle)
Wiston Castle Castle Free Pembrokeshire Wiston Pembrokeshire SN022181 51°49′36″N 4°52′16″W / 51.8268°N 4.8711°W / 51.8268; -4.8711 (Wiston Castle)