# Grade I listed buildings in Ceredigion

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In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical, or cultural significance; Grade I structures are those considered to be "buildings of exceptional interest". Listing was begun by a provision in the Town and Country Planning Act 1947. Once listed, strict limitations are imposed on the modifications allowed to a building's structure or fittings. In Wales, the authority for listing under the Planning (Listed Buildings and Conservation Areas) Act 1990 rests with Cadw.

## Buildings

| Name | Location Grid Ref. Geo-coordinates | Date Listed | Function | Notes | Reference Number | Image |
| St Gwenog Church, Llanwenog | Llanwenog SN4938945526 52°05′15″N 4°11′59″W﻿ / ﻿52.087540925299°N 4.1996551595069°W﻿ / 52.087540925299; -4.1996551595069﻿ (St Gwenog Church, Llanwenog) | 3 June 1964 | Church | Situated on E side of minor lane connecting B4338 and A475 some 750m WSW of Drefach. | 9817 | See more images |
| St Padarn's Church, Llanbadarn Fawr | Llanbadarn Fawr SN5990981012 52°24′33″N 4°03′39″W﻿ / ﻿52.40913454502°N 4.0609502406201°W﻿ / 52.40913454502; -4.0609502406201﻿ (St Padarn's Church, Llanbadarn Fawr) | 21 January 1964 | Church | Situated on a sloping site just W of The Square in the centre of the village. | 9832 | See more images |
| Nanteos | Llanfarian SN6201578629 52°23′18″N 4°01′44″W﻿ / ﻿52.388261070129°N 4.0290277743815°W﻿ / 52.388261070129; -4.0290277743815﻿ (Nanteos) | 12 February 1952 | Country House | Situated at the end of a long private drive which leads NE from the B4340. | 9875 | See more images |
| Church of St Michael, Penbryn | Penbryn SN2935952115 52°08′27″N 4°29′42″W﻿ / ﻿52.140895617469°N 4.4950241840214°W﻿ / 52.140895617469; -4.4950241840214﻿ (Church of St Michael, Penbryn) | 21 September 1964 | Church | Situated in circular hillside churchyard to W of Hoffnant valley some 500m inland from Penbryn beach. | 9899 | See more images |
| Strata Florida Abbey ruins | Ystrad Fflur SN7467665729 52°16′31″N 3°50′18″W﻿ / ﻿52.275398853637°N 3.8382785335925°W﻿ / 52.275398853637; -3.8382785335925﻿ (Strata Florida Abbey ruins) | 5 December 1963 | Abbey (ruin) | Situated about 1.5 km E of Pontrhydfendigaid on Abbey Road. | 9913 | See more images |
| Aberystwyth University Old College Building | Aberystwyth SN5806981707 52°24′54″N 4°05′18″W﻿ / ﻿52.41490317435°N 4.0882762867696°W﻿ / 52.41490317435; -4.0882762867696﻿ (Aberystwyth University Old College Building) | 21 July 1961 | College | Dominating the southern end of the town's seafront; railed and grassed forecourt to seaward side. | 10251 | See more images |
| Aberystwyth Castle | Aberystwyth SN5795681531 52°24′48″N 4°05′24″W﻿ / ﻿52.413292583034°N 4.0898617670529°W﻿ / 52.413292583034; -4.0898617670529﻿ (Aberystwyth Castle) | 14 September 1962 | Castle | Situated on a promontory SW of the town centre. | 10313 | See more images |
| Cardigan Castle | Cardigan SN1779245907 52°04′53″N 4°39′38″W﻿ / ﻿52.081438273731°N 4.6605399362576°W﻿ / 52.081438273731; -4.6605399362576﻿ (Cardigan Castle) | 16 June 1961 | Castle | Situated on promontory overlooking Cardigan Bridge. | 10458 | See more images |
| Llanerchaeron | Ciliau Aeron SN4792160197 52°13′08″N 4°13′39″W﻿ / ﻿52.218937713672°N 4.2276366457559°W﻿ / 52.218937713672; -4.2276366457559﻿ (Llanerchaeron) | 3 June 1964 | Country House | On S side of road, reached off A482. 3 km SE of Aberaeron. | 10715 | See more images |
| Church of the Holy Cross, Mwnt | Y Ferwig SN1950252015 52°08′13″N 4°38′20″W﻿ / ﻿52.136855844053°N 4.638851998066°W﻿ / 52.136855844053; -4.638851998066﻿ (Church of the Holy Cross, Mwnt) | 21 September 1964 | Church | Situated above and some 125m NW of Mwnt beach under Foel y Mwnt. | 15874 | See more images |