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

Property	Type	Access	Unitary Authority	Community	Historic County	Map link, Grid Reference and Coordinates	Ref.
Barclodiad y Gawres	Burial Chamber	Free	Isle of Anglesey	Aberffraw	Anglesey	map  SH329707 53°12′26″N 4°30′13″W / 53.2072°N 4.5036°W / 53.2072; -4.5036 (Barclodiad y Gawres Burial Chamber)	[1]
Basingwerk Abbey	Religious	Free	Flintshire	Holywell	Flintshire	map  SJ196774 53°17′17″N 3°12′27″W / 53.288°N 3.2074°W / 53.288; -3.2074 (Basingwerk Abbey)	[2]
Beaumaris Castle	Castle World Heritage Site.[3]	Pay	Isle of Anglesey	Beaumaris	Anglesey	map  SH607762 53°15′54″N 4°05′23″W / 53.2649°N 4.0897°W / 53.2649; -4.0897 (Beaumaris Castle) postcode LL58 8AP	[4]
Blaenavon Ironworks	Industrial World Heritage Site.[5]	Free	Torfaen	Blaenavon	Monmouthshire	map  SO249092 51°46′37″N 3°05′21″W / 51.777°N 3.0892°W / 51.777; -3.0892 (Blaenavon Ironworks) postcode NP4 9RN	[6]
Bodowyr	Burial Chamber	Free	Isle of Anglesey	Llanidan	Anglesey	map  SH462681 53°11′18″N 4°18′10″W / 53.1882°N 4.3029°W / 53.1882; -4.3029 (Bodowyr Burial Chamber)	[7]
Brecon Gaer	Roman Fort	Free	Powys	Yscir	Brecknockshire	map  SO003296 51°57′23″N 3°27′06″W / 51.9565°N 3.4517°W / 51.9565; -3.4517 (Brecon Gaer Roman Fort)	[8]
Bronllys Castle	Castle	Free	Powys	Bronllys	Brecknockshire	map  SO149347 52°00′16″N 3°14′27″W / 52.0044°N 3.2407°W / 52.0044; -3.2407 (Bronllys Castle)	[9]
Bryn Celli Ddu	Burial Chamber	Free	Isle of Anglesey	Llanddaniel Fab	Anglesey	map  SH507701 53°12′28″N 4°14′10″W / 53.2077°N 4.2361°W / 53.2077; -4.2361 (Bryn Celli Ddu Burial Chamber)	[10]
Bryntail	Industrial	Free	Powys	Llanidloes Without	Montgomeryshire	map  SN913868 52°28′08″N 3°36′03″W / 52.4688°N 3.6008°W / 52.4688; -3.6008 (Bryntail Lead Mine Buildings)	[11]
Caer Gybi	Roman Fort	Free	Isle of Anglesey	Holyhead	Anglesey	map  SH247826 53°18′42″N 4°37′55″W / 53.3116°N 4.632°W / 53.3116; -4.632 (Caer Gybi Roman Fortlet)	[12]
Caer Lêb	Enclosure	Free	Isle of Anglesey	Llanidan	Anglesey	map  SH472674 53°10′55″N 4°17′12″W / 53.1819°N 4.2866°W / 53.1819; -4.2866 (Caer Lêb)	[13]
Caer y Tŵr	Hill Fort	Free	Isle of Anglesey	Trearddur	Anglesey	map  SH219829 53°18′47″N 4°40′29″W / 53.3131°N 4.6747°W / 53.3131; -4.6747 (Caer y Tŵr)	[14]
Caerleon Roman Fortress	Roman Fort	Free	Newport	Caerleon	Monmouthshire	map  ST337906 51°36′37″N 2°57′32″W / 51.6103°N 2.9588°W / 51.6103; -2.9588 (Caerleon Roman Fortress and Baths)	[15]
Caernarfon Castle	Castle World Heritage Site.[3]	Pay	Gwynedd	Caernarfon	Caernarvonshire	map  SH477626 53°08′22″N 4°16′37″W / 53.1394°N 4.277°W / 53.1394; -4.277 (Caernarfon Castle) postcode LL55 2AY	[16]
Caernarfon town walls	Town Walls World Heritage Site.[3]	Free	Gwynedd	Caernarfon	Caernarvonshire	map  SH479626 53°08′28″N 4°16′31″W / 53.141°N 4.2754°W / 53.141; -4.2754 (Caernarfon Town Walls)	[17]
Caerphilly Castle	Castle	Pay	Caerphilly	Caerphilly	Glamorganshire	map  ST155870 51°34′35″N 3°13′14″W / 51.5763°N 3.2206°W / 51.5763; -3.2206 (Caerphilly Castle)	[18]
Caerwent	Roman Town	Free	Monmouthshire	Caerwent	Monmouthshire	map  ST469907 51°36′45″N 2°46′06″W / 51.6126°N 2.7683°W / 51.6126; -2.7683 (Caerwent Roman Town)	[19]
Capel Garmon	Burial Chamber	Free	Conwy	Bro Garmon	Denbighshire	map  SH817543 53°04′23″N 3°45′57″W / 53.073°N 3.7658°W / 53.073; -3.7658 (Capel Garmon Burial Chamber)	[20]
Capel Lligwy	Religious	Free	Isle of Anglesey	Moelfre	Anglesey	map  SH499863 53°21′08″N 4°15′23″W / 53.3523°N 4.2564°W / 53.3523; -4.2564 (Capel Lligwy)	[21]
Carew Cross	Religious	Free	Pembrokeshire	Carew	Pembrokeshire	map  SN047037 51°41′53″N 4°49′40″W / 51.698°N 4.8278°W / 51.698; -4.8278 (Carew Cross)	[22]
Carreg Cennen Castle	Castle	Pay	Carmarthenshire	Dyffryn Cennen	Carmarthenshire	map  SN668190 51°51′16″N 3°56′07″W / 51.8545°N 3.9352°W / 51.8545; -3.9352 (Carreg Cennen Castle)	[23]
Carreg Coetan	Burial Chamber	Free	Pembrokeshire	Newport	Pembrokeshire	map  SN060394 52°01′07″N 4°49′42″W / 52.0186°N 4.8282°W / 52.0186; -4.8282 (Carreg Coetan Arthur Burial Chamber)	[24]
Carswell Medieval House	Domestic	Free (Ext.)	Pembrokeshire	Penally	Pembrokeshire	map  SN098010 51°40′34″N 4°45′08″W / 51.676°N 4.7523°W / 51.676; -4.7523 (Carswell Medieval House)	[25]
Castell Bryn Gwyn	Prehistoric	Free	Isle of Anglesey	Llanidan	Anglesey	map  SH465670 53°10′42″N 4°17′52″W / 53.1784°N 4.2979°W / 53.1784; -4.2979 (Castell Bryn Gwyn)	[26]
Castell Coch	Castle	Pay	Cardiff	Tongwynlais	Glamorganshire	map  ST130826 51°32′10″N 3°15′18″W / 51.536°N 3.2549°W / 51.536; -3.2549 (Castell Coch)	[27]
Castell y Bere	Castle	Free	Gwynedd	Llanfihangel-y-Pennant	Merionethshire	map  SH667085 52°39′30″N 3°58′16″W / 52.6583°N 3.9711°W / 52.6583; -3.9711 (Castell y Bere)	[28]
Chepstow, Bulwark Camp	Prehistoric enclosure	Free	Monmouthshire	Chepstow	Monmouthshire	map  ST538927 51°37′52″N 2°40′08″W / 51.6312°N 2.6689°W / 51.6312; -2.6689 (Chepstow Bulwarks Camp)	[29]
Chepstow Castle	Castle	Pay	Monmouthshire	Chepstow	Monmouthshire	map  ST533940 51°38′37″N 2°40′32″W / 51.6437°N 2.6755°W / 51.6437; -2.6755 (Chepstow Castle)	[30]
Chepstow Port Wall	Town Walls	Free	Monmouthshire	Chepstow	Monmouthshire	map  ST533937 51°38′25″N 2°40′34″W / 51.6404°N 2.6762°W / 51.6404; -2.6762 (Chepstow Port Wall)	[31]
Cilgerran Castle	Castle	Pay	Pembrokeshire	Cilgerran	Pembrokeshire	map  SN194431 52°03′25″N 4°38′03″W / 52.0569°N 4.6342°W / 52.0569; -4.6342 (Cilgerran Castle)	[32]
Coity Castle	Castle	Free	Bridgend	Coity Higher	Glamorganshire	map  SS923814 51°31′20″N 3°33′12″W / 51.5221°N 3.5534°W / 51.5221; -3.5534 (Coity Castle)	[33]
Conwy Castle	Castle World Heritage Site.[3]	Pay	Conwy	Conwy	Caernarvonshire	map  SH783774 53°16′48″N 3°49′32″W / 53.2801°N 3.8256°W / 53.2801; -3.8256 (Conwy Castle) postcode LL32 8AY	[34]
Conwy town walls	Town Walls World Heritage Site.[3]	Free	Conwy	Conwy	Caernarvonshire	map  SH780776 53°16′54″N 3°49′52″W / 53.2817°N 3.8312°W / 53.2817; -3.8312 (Conwy Town Walls)	[35]
Criccieth Castle	Castle	Pay	Gwynedd	Criccieth	Caernarvonshire	map  SH499377 52°54′58″N 4°13′57″W / 52.916°N 4.2324°W / 52.916; -4.2324 (Criccieth Castle)	[36]
Cymer Abbey	Religious	Free	Gwynedd	Llanelltyd	Merionethshire	map  SH721195 52°45′29″N 3°53′46″W / 52.7581°N 3.8962°W / 52.7581; -3.8962 (Cymer Abbey)	[37]
Denbigh Castle	Castle	Pay	Denbighshire	Denbigh	Denbighshire	map  SJ051657 53°10′50″N 3°25′14″W / 53.1806°N 3.4206°W / 53.1806; -3.4206 (Denbigh Castle)	[38]
Denbigh Friary	Religious	Free	Denbighshire	Denbigh	Denbighshire	map  SJ059665 53°11′16″N 3°24′33″W / 53.1878°N 3.4091°W / 53.1878; -3.4091 (Denbigh Friary)	[39]
Denbigh Town Walls	Town Walls	Free	Denbighshire	Denbigh	Denbighshire	map  SJ052657 53°10′51″N 3°25′09″W / 53.1808°N 3.4191°W / 53.1808; -3.4191 (Denbigh Town Walls)	[40]
Leicester's Church	Religious	Free	Denbighshire	Denbigh	Denbighshire	map  SJ053659 53°10′56″N 3°25′08″W / 53.1822°N 3.419°W / 53.1822; -3.419 (Denbigh, Leicester's Church)	[41]
St Hilary's Chapel	Religious	Free	Denbighshire	Denbigh	Denbighshire	map  SJ052659 53°10′54″N 3°25′11″W / 53.1818°N 3.4198°W / 53.1818; -3.4198 (Denbigh, St Hilary's Chapel)	[42]
Derwen Churchyard Cross	Religious	Free	Denbighshire	Derwen	Denbighshire	map  SJ070507 53°02′45″N 3°23′18″W / 53.0457°N 3.3882°W / 53.0457; -3.3882 (Derwen Churchyard Cross)	[43]
Din Dryfol	Burial Chamber	Free	Isle of Anglesey	Aberffraw	Anglesey	map  SH395724 53°13′30″N 4°24′17″W / 53.225°N 4.4048°W / 53.225; -4.4048 (Din Dryfol Burial Chamber)	[44]
Din Lligwy	Hut Group	Free	Isle of Anglesey	Moelfre	Anglesey	map  SH497861 53°21′03″N 4°15′33″W / 53.3508°N 4.2592°W / 53.3508; -4.2592 (Din Lligwy Hut Group)	[45]
Dinefwr Castle	Castle	Free	Carmarthenshire	Llandeilo	Carmarthenshire	map  SN622224 51°52′36″N 4°01′07″W / 51.876776°N 4.018562°W / 51.876776; -4.018562 (Dinefwr Castle)	[46]
Dolbadarn Castle	Castle	Free	Gwynedd	Llanberis	Caernarvonshire	map  SH586598 53°07′00″N 4°06′51″W / 53.1166°N 4.1143°W / 53.1166; -4.1143 (Dolbadarn Castle)	[47]
Dolforwyn Castle	Castle	Free	Powys	Llandyssil	Montgomeryshire	map  SO151950 52°32′47″N 3°15′09″W / 52.5464°N 3.2525°W / 52.5464; -3.2525 (Dolforwyn Castle)	[48]
Dolwyddelan Castle	Castle	Pay	Conwy	Dolwyddelan	Caernarvonshire	map  SH721523 53°03′11″N 3°54′30″W / 53.0531°N 3.9084°W / 53.0531; -3.9084 (Dolwyddelan Castle)	[49]
Dryslwyn Castle	Castle	Free	Carmarthenshire	Llangathen	Carmarthenshire	map  SN554203 51°51′48″N 4°06′03″W / 51.8632°N 4.1007°W / 51.8632; -4.1007 (Dryslwyn Castle)	[50]
Dyffryn Ardudwy	Burial Chamber	Free	Gwynedd	Dyffryn Ardudwy	Merionethshire	map  SH588228 52°47′05″N 4°05′37″W / 52.7846°N 4.0937°W / 52.7846; -4.0937 (Dyffryn Ardudwy Burial Chamber)	[51]
Dyfi Furnace	Industrial	Free	Ceredigion	Ysgubor-y-coed	Cardiganshire	map  SN684950 52°32′16″N 3°56′25″W / 52.5378°N 3.9404°W / 52.5378; -3.9404 (Dyfi Furnace)	[52]
Eliseg's Pillar	Religious	Free	Denbighshire	Llantysilio	Denbighshire	map  SJ202445 52°59′32″N 3°11′21″W / 52.9921°N 3.1893°W / 52.9921; -3.1893 (Eliseg's Pillar)	[53]
Ewenny Priory	Religious	Free	The Vale of Glamorgan	Ewenny	Glamorganshire	map  SS912778 51°29′20″N 3°34′03″W / 51.4888°N 3.5676°W / 51.4888; -3.5676 (Ewenny Priory)	[54]
Ewloe Castle	Castle	Free	Flintshire	Hawarden	Flintshire	map  SJ288675 53°12′00″N 3°04′02″W / 53.2°N 3.0672°W / 53.2; -3.0672 (Ewloe Castle)	[55]
Flint Castle	Castle	Free	Flintshire	Flint	Flintshire	map  SJ246732 53°15′04″N 3°07′48″W / 53.2511°N 3.1301°W / 53.2511; -3.1301 (Flint Castle)	[56]
Grosmont Castle	Castle	Free	Monmouthshire	Grosmont	Monmouthshire	map  SO405244 51°54′55″N 2°51′57″W / 51.9154°N 2.8657°W / 51.9154; -2.8657 (Grosmont Castle)	[57]
Gwydir Uchaf Chapel	Religious	Free	Conwy	Trefriw	Caernarvonshire	map  SH794609 53°07′55″N 3°48′10″W / 53.1319°N 3.8028°W / 53.1319; -3.8028 (Gwydir Uchaf Chapel)	[58]
Hafoty Medieval House	Domestic	Free (Ext.)	Isle of Anglesey	Cwm Cadnant	Anglesey	map  SH562781 53°16′51″N 4°09′28″W / 53.2809°N 4.1579°W / 53.2809; -4.1579 (Hafoty Medieval House)	[59]
Harlech Castle	Castle World Heritage Site.[3]	Pay	Gwynedd	Harlech	Merionethshire	map  SH581312 52°51′37″N 4°06′33″W / 52.8602°N 4.1091°W / 52.8602; -4.1091 (Harlech Castle) postcode LL46 2YH	[60]
Haverfordwest Priory	Religious	Free	Pembrokeshire	Haverfordwest	Pembrokeshire	map  SM956151 51°47′51″N 4°57′51″W / 51.7976°N 4.9643°W / 51.7976; -4.9643 (Haverfordwest Priory)	[61]
Hen Gwrt Moated Site	Domestic	Free	Monmouthshire	Llantilio Crossenny	Monmouthshire	map  SO395151 51°49′53″N 2°52′42″W / 51.8315°N 2.8782°W / 51.8315; -2.8782 (Hen Gwrt Moated Site)	[62]
Holyhead Mountain Hut Circles	Hut Group	Free	Isle of Anglesey	Trearddur	Anglesey	map  SH212820 53°18′19″N 4°41′02″W / 53.3054°N 4.6838°W / 53.3054; -4.6838 (Holyhead Mountain Hut Circles)	[63]
Kidwelly Castle	Castle	Pay	Carmarthenshire	Kidwelly	Carmarthenshire	map  SN409070 51°44′23″N 4°18′20″W / 51.7398°N 4.3055°W / 51.7398; -4.3055 (Kidwelly Castle)	[64]
Lamphey Bishop's Palace	Religious	Free	Pembrokeshire	Lamphey	Pembrokeshire	map  SN018009 51°40′19″N 4°52′00″W / 51.672°N 4.8668°W / 51.672; -4.8668 (Lamphey Bishop's Palace)	[65]
Laugharne Castle	Castle	Pay	Carmarthenshire	Laugharne Township	Carmarthenshire	map  SN302107 51°46′11″N 4°27′44″W / 51.7696°N 4.4621°W / 51.7696; -4.4621 (Laugharne Castle)	[66]
Llangar Church	Religious	Pay	Denbighshire	Cynwyd	Merionethshire	map  SJ063424 52°58′16″N 3°23′45″W / 52.9712°N 3.3959°W / 52.9712; -3.3959 (Llangar Old Parish Church)	[67]
Llanmelin Wood Hill Fort	Hill Fort	Free	Monmouthshire	Caerwent	Monmouthshire	map  ST461925 51°37′45″N 2°46′46″W / 51.6291°N 2.7794°W / 51.6291; -2.7794 (Llanmelin Wood Hill Fort)	[68]
Llansteffan Castle	Castle	Free	Carmarthenshire	Llansteffan	Carmarthenshire	map  SN351101 51°45′56″N 4°23′27″W / 51.7655°N 4.3908°W / 51.7655; -4.3908 (Llansteffan Castle)	[69]
Llanthony Priory	Religious	Free	Monmouthshire	Crucorney	Monmouthshire	map  SO289278 51°56′41″N 3°02′11″W / 51.9448°N 3.0364°W / 51.9448; -3.0364 (Llanthony Priory)	[70]
Llawhaden Castle	Castle	Free	Pembrokeshire	Llawhaden	Pembrokeshire	map  SN073175 51°49′20″N 4°47′51″W / 51.8223°N 4.7976°W / 51.8223; -4.7976 (Llawhaden Castle)	[71]
Lligwy Burial Chamber	Burial Chamber	Free	Isle of Anglesey	Moelfre	Anglesey	map  SH501860 53°21′00″N 4°15′10″W / 53.3499°N 4.2529°W / 53.3499; -4.2529 (Lligwy Burial Chamber)	[72]
Loughor Castle	Castle	Free	Swansea	Llwchwr	Glamorganshire	map  SS564979 51°39′44″N 4°04′38″W / 51.6622°N 4.0771°W / 51.6622; -4.0771 (Loughor Castle)	[73]
Maen Achwyfan Cross	Religious	Free	Flintshire	Whitford	Flintshire	map  SJ128787 53°17′55″N 3°18′31″W / 53.2987°N 3.3085°W / 53.2987; -3.3085 (Maen Achwyfan Cross)	[74]
Margam Stones Museum	Religious	Pay	Neath Port Talbot	Margam	Glamorganshire	map  SS801864 51°33′49″N 3°43′52″W / 51.5637°N 3.7312°W / 51.5637; -3.7312 (Margam Stones Museum)	[75]
Monmouth Castle	Castle	Free	Monmouthshire	Monmouth	Monmouthshire	map  SO506128 51°48′45″N 2°43′00″W / 51.8125°N 2.7167°W / 51.8125; -2.7167 (Monmouth Castle)	[76]
Montgomery Castle	Castle	Free	Powys	Montgomery	Montgomeryshire	map  SO221967 52°33′48″N 3°09′00″W / 52.5632°N 3.1501°W / 52.5632; -3.1501 (Montgomery Castle)	[77]
Neath Abbey	Religious	Free	Neath Port Talbot	Dyffryn Clydach	Glamorganshire	map  SS738974 51°39′40″N 3°49′34″W / 51.6612°N 3.826°W / 51.6612; -3.826 (Neath Abbey and Gatehouse)	[78]
Newcastle Castle	Castle	Free	Bridgend	Bridgend	Glamorganshire	map  SS902800 51°30′32″N 3°34′59″W / 51.5089°N 3.583°W / 51.5089; -3.583 (Newcastle, Bridgend)	[79]
Newport Castle	Castle	Free	Newport	Stow Hill	Monmouthshire	map  ST311884 51°35′27″N 2°59′42″W / 51.5908°N 2.9951°W / 51.5908; -2.9951 (Newport Castle)	[80]
Ogmore Castle	Castle	Free	The Vale of Glamorgan	St Bride's Major	Glamorganshire	map  SS881769 51°28′50″N 3°36′41″W / 51.4805°N 3.6115°W / 51.4805; -3.6115 (Ogmore Castle)	[81]
Old Beaupre Castle	Castle	Free	The Vale of Glamorgan	Llanfair	Glamorganshire	map  ST008720 51°26′19″N 3°25′39″W / 51.4385°N 3.4274°W / 51.4385; -3.4274 (Old Beaupre Castle)	[82]
Oxwich Castle	Castle	Pay	Swansea	Penrice	Glamorganshire	map  SS497862 51°33′20″N 4°10′06″W / 51.5555°N 4.1683°W / 51.5555; -4.1683 (Oxwich Castle)	[83]
Parc le Breos	Burial Chamber	Free	Swansea	Ilston	Glamorganshire	map  SS537898 51°35′18″N 4°06′46″W / 51.5883°N 4.1128°W / 51.5883; -4.1128 (Parc le Breos Burial Chamber)	[84]
Penarth Fawr	Medieval House	?	Gwynedd	Llanystumdwy	Caernarvonshire	map  SH419376 52°54′48″N 4°21′09″W / 52.9132°N 4.3524°W / 52.9132; -4.3524 (Penarth Fawr Medieval House)	[85]
Penmon Cross	Religious	Free	Isle of Anglesey	Llangoed	Anglesey	map  SH630807 53°18′21″N 4°03′24″W / 53.3058°N 4.0568°W / 53.3058; -4.0568 (Penmon Cross)	[86]
Penmon Dovecote	Domestic	Free	Isle of Anglesey	Llangoed	Anglesey	map  SH631807 53°18′20″N 4°03′21″W / 53.3056°N 4.0557°W / 53.3056; -4.0557 (Penmon Dovecote)	[87]
Penmon Priory	Religious	Free	Isle of Anglesey	Llangoed	Anglesey	map  SH630807 53°18′20″N 4°03′24″W / 53.3055°N 4.0568°W / 53.3055; -4.0568 (Penmon Priory)	[88]
St Seiriol's Well	Religious	Free	Isle of Anglesey	Llangoed	Anglesey	map  SH630808 53°18′23″N 4°03′24″W / 53.3064°N 4.0566°W / 53.3064; -4.0566 (Penmon, St Seiriol's Well)	[89]
Penrhos Feilw Standing Stones	Prehistoric	Free	Isle of Anglesey	Trearddur	Anglesey	map  SH227809 53°17′45″N 4°39′42″W / 53.2957°N 4.6618°W / 53.2957; -4.6618 (Penrhos Feliw Standing Stones)	[90]
Pentre Ifan	Burial Chamber	Free	Pembrokeshire	Nevern	Pembrokeshire	map  SN099370 51°59′57″N 4°46′12″W / 51.9991°N 4.7701°W / 51.9991; -4.7701 (Pentre Ifan Burial Chamber)	[91]
Plas Mawr, Conwy	Domestic	Pay	Conwy	Conwy	Caernarvonshire	map  SH780775 53°16′52″N 3°49′48″W / 53.2812°N 3.83°W / 53.2812; -3.83 (Plas Mawr)	[92]
Pont Minllyn	Bridge	Free	Gwynedd	Mawddwy	Merionethshire	map  SH859138 52°42′38″N 3°41′21″W / 52.7106°N 3.6891°W / 52.7106; -3.6891 (Pont Minllyn)	[93]
Presaddfed	Burial Chamber	Free	Isle of Anglesey	Bodedern	Anglesey	map  SH347808 53°17′57″N 4°28′51″W / 53.2992°N 4.4809°W / 53.2992; -4.4809 (Presaddfed Burial Chamber)	[94]
Raglan Castle	Castle	Pay	Monmouthshire	Raglan	Monmouthshire	map  SO417085 51°46′13″N 2°50′59″W / 51.7702°N 2.8498°W / 51.7702; -2.8498 (Raglan Castle)	[95]
Rhuddlan Castle	Castle	Pay	Denbighshire	Rhuddlan	Flintshire	map  SJ024779 53°17′21″N 3°27′54″W / 53.2891°N 3.465°W / 53.2891; -3.465 (Rhuddlan Castle)	[96]
Rug Chapel	Religious	Pay	Denbighshire	Corwen	Merionethshire	map  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)	[97]
Runston Chapel	Religious		Monmouthshire	Mathern	Monmouthshire	map  ST496915 51°37′13″N 2°43′45″W / 51.6204°N 2.7293°W / 51.6204; -2.7293 (Runston Chapel)	[98]
Segontium Roman Fort	Roman Fort	Free	Gwynedd	Caernarfon	Caernarvonshire	map  SH485624 53°08′14″N 4°15′58″W / 53.1372°N 4.2662°W / 53.1372; -4.2662 (Segontium Roman Fort)	[99]
Skenfrith Castle	Castle	Free	Monmouthshire	Llangattock-Vibon-Avel	Monmouthshire	map  SO456203 51°52′43″N 2°47′25″W / 51.8786°N 2.7904°W / 51.8786; -2.7904 (Skenfrith Castle)	[100]
St Cybi's Well	Religious	Free	Gwynedd	Llangybi	Gwynedd	map  SH427413 52°56′45″N 4°20′32″W / 52.945735°N 4.342090°W / 52.945735; -4.342090 (St Cybi's Well)	[101]
St Davids Bishop's Palace	Religious	Pay	Pembrokeshire	St Davids	Pembrokeshire	map  SM750254 51°52′56″N 5°16′15″W / 51.8821°N 5.2708°W / 51.8821; -5.2708 (St Davids Bishop's Palace)	[102]
St Dogmaels Abbey	Religious	Free	Pembrokeshire	St Dogmaels	Pembrokeshire	map  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)	[103]
St Lythans burial chamber	Burial Chamber	Free	The Vale of Glamorgan	Wenvoe	Glamorganshire	map  ST100723 51°26′33″N 3°17′42″W / 51.4426°N 3.2951°W / 51.4426; -3.2951 (St Lythans Burial Chamber)	[104]
St Non's Chapel	Religious	Free	Pembrokeshire	St Davids	Pembrokeshire	map  SM750243 51°52′20″N 5°16′08″W / 51.8722°N 5.2689°W / 51.8722; -5.2689 (St Non's Chapel)	[105]
St Quentin's Castle, Llanblethian	Castle	Free	The Vale of Glamorgan	Cowbridge with Llanblethian	Glamorganshire	map  SS989741 51°27′27″N 3°27′23″W / 51.4576°N 3.4564°W / 51.4576; -3.4564 (St Quentin's Castle, Llanblethian)	[106]
St Winefride's Chapel and Holywell	Religious	Free	Flintshire	Holywell	Flintshire	map  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)	[107]
Strata Florida Abbey	Religious	Pay	Ceredigion	Ystrad Fflur	Cardiganshire	map  SN746657 52°16′31″N 3°50′18″W / 52.2752°N 3.8383°W / 52.2752; -3.8383 (Strata Florida Abbey)	[108]
Swansea Castle	Castle	Free (External only)	Swansea	Swansea	Glamorganshire	map  SS657930 51°37′14″N 3°56′28″W / 51.6205°N 3.9411°W / 51.6205; -3.9411 (Swansea Castle)	[109]
Talley Abbey	Religious	Free	Carmarthenshire	Talley	Carmarthenshire	map  SN632327 51°58′35″N 3°59′32″W / 51.9765°N 3.9922°W / 51.9765; -3.9922 (Talley Abbey)	[110]
Tinkinswood	Burial Chamber	Free	The Vale of Glamorgan	St Nicholas and Bonvilston	Glamorganshire	map  ST092732 51°27′05″N 3°18′26″W / 51.4513°N 3.3072°W / 51.4513; -3.3072 (Tinkinswood Burial Chamber)	[111]
Tintern Abbey	Religious	Pay	Monmouthshire	Tintern	Monmouthshire	map  SO533000 51°41′49″N 2°40′36″W / 51.6969°N 2.6768°W / 51.6969; -2.6768 (Tintern Abbey)	[112]
Trefignath	Burial Chamber	Free	Isle of Anglesey	Trearddur	Anglesey	map  SH258805 53°17′36″N 4°36′51″W / 53.2932°N 4.6142°W / 53.2932; -4.6142 (Trefignath Burial Chamber)	[113]
Tregwehelydd Standing Stone	Prehistoric	Free	Isle of Anglesey	Tref Alaw	Anglesey	map  SH340831 53°19′10″N 4°29′33″W / 53.3195°N 4.4926°W / 53.3195; -4.4926 (Tregwehelydd Standing Stone)	[114]
Tretower Castle	Castle	Pay	Powys	Llanfihangel Cwmdu	Brecknockshire	map  SO184212 51°53′02″N 3°11′10″W / 51.8839°N 3.1862°W / 51.8839; -3.1862 (Tretower Castle)	[115]
Tretower Court	Castle	Pay	Powys	Llanfihangel Cwmdu	Brecknockshire	map  SO185211 51°53′00″N 3°11′05″W / 51.8832°N 3.1846°W / 51.8832; -3.1846 (Tretower Court)	[116]
Twthill	Castle Mound	Free	Denbighshire	Rhuddlan	Flintshire	map  SJ026776 53°17′14″N 3°27′43″W / 53.2871°N 3.4619°W / 53.2871; -3.4619 (Twthill, Rhuddlan)	[117]
Tŷ Mawr Standing Stone	Prehistoric	Free	Isle of Anglesey	Holyhead	Anglesey	map  SH253809 53°17′48″N 4°37′17″W / 53.2967°N 4.6214°W / 53.2967; -4.6214 (Ty Mawr Standing Stone)	[118]
Tŷ Newydd Burial Chamber	Burial Chamber	Free	Isle of Anglesey	Llanfaelog	Anglesey	map  SH344738 53°14′09″N 4°28′57″W / 53.2359°N 4.4824°W / 53.2359; -4.4824 (Tŷ Newydd Burial Chamber)	[119]
Valle Crucis Abbey	Religious	Pay	Denbighshire	Llantysilio	Denbighshire	map  SJ204441 52°59′20″N 3°11′12″W / 52.9888°N 3.1867°W / 52.9888; -3.1867 (Valle Crucis Abbey)	[120]
Weobley Castle	Castle	Pay	Swansea	Llanrhidian Lower	Glamorganshire	map  SS478927 51°36′46″N 4°11′57″W / 51.6128°N 4.1993°W / 51.6128; -4.1993 (Weobley Castle)	[121]
White Castle	Castle	Free	Monmouthshire	Llantilio Crossenny	Monmouthshire	map  SO379167 51°50′46″N 2°54′08″W / 51.8461°N 2.9022°W / 51.8461; -2.9022 (White Castle)	[122]
Wiston Castle	Castle	Free	Pembrokeshire	Wiston	Pembrokeshire	map  SN022181 51°49′36″N 4°52′16″W / 51.8268°N 4.8711°W / 51.8268; -4.8711 (Wiston Castle)	[123]

Location map

Map of Wales, showing the location of Cadw Properties