Grade I listed buildings in Gwynedd

Gwynedd shown within Wales

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	Date Listed	Grid Ref. Geo-coordinates	Function	Notes	HB No	Image
Cochwillan	Llanllechid	22 February 1952	SH6069569416	House	Situated in low-lying pasture fields at end of short track off the minor road between Bethesda and Tal-y-bont.	3653	Cochwillan Upload another image
Penrhyn Castle	Llandygai	3 March 1966	SH6026671918	Castle	Set in landscaped grounds of Penrhyn Park in elevated position surrounded by open lawns and some trees at end of long winding drive from Grand Lodge.	3659	Upload another image See more images
Glynllifon	Llandwrog	29 April 1952	SH4566255388	House	Set in its own extensive grounds on east side of the A499 at Llandwrog; the house is reached by a short drive from the grand lodge. Built on a platform site.	3684	Glynllifon Upload another image See more images
Church of St Beuno, with attached Chapel of St Beuno	Clynnog	29 May 1968	SH4145149698	Church	The parish church is set close to the main Caernarfon to Pwllheli road, in a large graveyard which slopes gently to the N. The chapel stands on the S side of the tower.	3758	Church of St Beuno, with attached Chapel of St Beuno Upload another image See more images
Fort Belan	Llandwrog	29 May 1968	SH4403660941	Fort	Situated 4km south-west of Caernarfon reached along a track to the head of the short peninsula north of Dinas and Morfa Dinlle with dock immediately to east.	3810	Upload another image See more images
Caernarfon Castle	Caernarfon	31 March 1983	SH4779662683	Castle	At the S end of the town and on the N bank of the Afon Seiont.	3814	Upload another image See more images
Caernarfon town walls	Caernarfon	31 March 1983	SH4793162532	Town walls	Enclosing the old town on the N side of Caernarfon Castle.	3815	Caernarfon town walls Upload another image See more images
Police Station, including forecourt railings and gate piers	Caernarfon	10 August 1953	SH4770862695	Police station	At the W end of Castle Ditch abutting the Town Wall and directly opposite Caernarfon Castle.	3827	Police Station, including forecourt railings and gate piers Upload another image
County Court (former County Hall)	Caernarfon	10 August 1953	SH4773162704	Courthouse	At the junction of Castle Ditch and Shirehall Street, directly opposite Caernarfon Castle.	3828	County Court (former County Hall) Upload another image
Church of St Mary, Caernarfon	Caernarfon	10 August 1953	SH4775562948	Church	At the N end of the street and incorporated into the Town Wall.	3857	Church of St Mary, Caernarfon Upload another image
Porth yr Aur (Royal Welsh Yacht Club)	Caernarfon	8 October 1953	SH4771162817	Yacht club	At the W end of High Street and facing The Promenade.	3861	Porth yr Aur (Royal Welsh Yacht Club) Upload another image
Church of St Peblig	Caernarfon	8 October 1953	SH4875062290	Church	In a walled churchyard set back from the road and to the S of Segontium Roman Fort.	3881	Church of St Peblig Upload another image
Bangor University Main Building	Bangor	27 May 1949	SH5794072337	University		3963	Upload another image
Bangor Cathedral	Bangor	27 May 1949	SH5807872059	Cathedral	In a sloping oval churchyard below the street.	4027	Upload another image See more images
Menai Suspension Bridge	Bangor	8 February 1988	SH5561971510	Bridge	Spanning the Menai Straits to W of the city.	4049	Upload another image See more images
Vaynol Old Hall	Pentir	22 February 1952	SH5382969536	Craft centre	Set in the heart of Vaynol Park, E of Vaynol Hall. Attached outbuildings on the W end, some facing the stable yard.	4166	Upload another image
Chapel of St Mary to N of Vaynol Old Hall	Pentir	22 February 1952	SH5382169561	Chapel	The building is located immediately N of the Old Hall, on a raised terrace in the SW corner of the Terraced Gardens.	4172	Chapel of St Mary to N of Vaynol Old Hall Upload another image
Vaynol Hall	Pentir	22 February 1952	SH5369669434	Country house	Located at the centre of Vaynol Park, SW of the Old Hall, and having gardens adjoining to the SW.	4173	Upload another image See more images
Church of St Hywyn	Aberdaron	19 October 1971	SH1732526367	Church	Situated in Aberdaron village, the graveyard running to the cliff edge.	4225	Upload another image See more images
Ruin of Abbey of St Mary	Bardsey Island, Aberdaron	19 October 1971	SH1200822172	Abbey (ruined)	Situated towards the N end of the island in walled churchyard.	4232	Ruin of Abbey of St Mary Upload another image
Church of St Iestyn	Llaniestyn, Tudweiliog	19 October 1971	SH2697333766	Church	Situated on the S side of the village centre at Llaniestyn.	4258	Church of St Iestyn Upload another image
Capel Newydd	Nanhoron, Llanengan	19 October 1971	SH2858130919	Chapel	Situated in field near Ty Bricks reached by lane and track running W from B4413 from point some 700m E of Nanhoron.	4303	Capel Newydd Upload another image
Church of St Engan	Llanengan	19 October 1971	SH2939627031	Church	Situated in Llanengan village in large churchyard just W of road to Llangian.	4304	Church of St Engan Upload another image See more images
Church of St Cawrdaf, Llannor	Abererch, Llannor	19 October 1971	SH3966136582	Church	The parish church stands in the large churchyard well furnished with slate tombstones, including some C18 ledger stones at the E, at the W end of Abererch village.	4317	Upload another image
Ffynnon Cybi and associated works	Llanystumdwy	19 October 1971	SH4272241276	Well	The well lies in the narrow valley below the slopes of Garn Bentyrch, and is reached by a footpath from the NE corner of the churchyard, crossing two fields, the second by a causeway.	4343	Upload another image
Penarth-fawr	Llanystumdwy	19 October 1971	SH4192737675		The house stands on a minor road running N from the A497, W of Pwllheli towards Llanarmon.	4359	Penarth-fawr Upload another image
Church of St Beuno, Pistyll	Pistyll	19 October 1971	SH3283342320	Church	The church is set on a sloping site in a narrow valley below the later hamlet of Pistyll, and below the former road line of the Llithfaen to Nefyn road.	4374	Church of St Beuno, Pistyll Upload another image See more images
Church of St Gwynhoydl, Tudeweiliog	Tudweiliog	19 October 1971	SH2088533236	Church	Situated some 500m E of the crossroads at Pen-y-graig, NE of a minor road from the crossroads to Pont Llangwnnadl.	4378	Church of St Gwynhoydl, Tudeweiliog Upload another image
Criccieth Castle	Criccieth	8 February 1949	SH4998837731	Castle		4396	Criccieth Castle Upload another image See more images
Capel Peniel	Porthmadog	30 March 1951	SH5625939895	Chapel	Set back from the road at the S end of Tremadog.	4442	Upload another image
Church of St Cadfan, Tywyn	Tywyn	30 March 1951	SH5882200952	Church	Near the E end of the modern town, in a walled churchyard on the W side of Corbet Square.	4642	Upload another image See more images
Parish Church of St Derfel, Llandderfel	Llandderfel	20 October 1966	SH9815737066	Church	Located within its own walled churchyard at the SW edge of the village, with commanding views down the Dee valley.	4654	Parish Church of St Derfel, Llandderfel Upload another image
Church of St Mary and St Egryn, Llanegryn	Llanegryn	17 June 1966	SH5961805787	Church	The church is located on a S facing bluff above the confluence of two streams, NNW of the present nucleated village, and is reached by a minor road off the N end of the main village street.	4729	Church of St Mary and St Egryn, Llanegryn Upload another image
Cymer Abbey	Llanelltyd	17 June 1966	SH7213419517	Abbey	Situated near the Afon Mawddach on the opposite bank of the river to Llanelltyd village; accessed via a lane leading NE off the main road.	4738	Cymer Abbey Upload another image See more images
Church of St Celynin, Llangelynin	Llangelynin	17 June 1966	SH5712307205	Church	To the W of and below the A493 in Llangelynin hamlet. The church stands in a rectangular churchyard, and is set into the steeply sloping ground above the railway and sea.	4751	Church of St Celynin, Llangelynin Upload another image
Portmeirion Town Hall	Portmeirion, Penrhyndeudraeth	28 April 1952	SH5891037133	Town hall	Facing the Angel and Angel Gates at the western edge of the village group; set against the hill slope.	4777	Portmeirion Town Hall Upload another image See more images
Church of St Tanwg, Llanfair	Llanfair	30 November 1966	SH5687328241	Church	Located at the coast to SSW end of the village of Llandanwg.	4790	Upload another image
St Brothen's Church, Llanfrothen	Llanfrothen	30 November 1966	SH6221941185	Church	Located on a sloping site at the SW edge of the small village of Llanfrothen; accessed via a footpath leading S from a lane running S to the Village from the B4410 Garreg to Rhyd road; set within a rubble-walled graveyard.	4804	Upload another image
St Mary and St Bodfan Church, Llanaber	Barmouth	4 March 1951	SH5993018024	Church	On a striking site overlooking the sea to the W of the slightly elevated main road; in a large graveyard behind rubble walls, accessed via a stone gabled lychgate.	4906	St Mary and St Bodfan Church, Llanaber Upload another image See more images
St Mark's Church, Brithdir	Brithdir and Llanfachreth	26 May 1995	SH7635718360	Church		16008	St Mark's Church, Brithdir Upload another image See more images
Capel Jerusalem	Bethesda	25 April 1997	SH6245566745	Chapel	Situated in centre of Bethesda, fronting onto the gardens behind the War Memorial.	18387	Capel Jerusalem Upload another image
St Baglan's Church, Llanfaglan	Bontnewydd	29 May 1968	SH4554460690	Church	Situated NW of Llanfaglan, in an isolated situation in a field some 150m E of the minor road which runs N - S along the edge of the Afon Gwyrfai estuary.	18619	St Baglan's Church, Llanfaglan Upload another image See more images
Dolbadarn Castle	Llanberis	28 May 1999	SH5860359791	Castle	Situated on a natural rock outcrop in a strategic position at the north-west end of Llyn Peris, the castle forms a prominent feature in the landscape.	21854	Upload another image See more images
Dinorwic Slate Quarry Workshops (National Slate Museum Buildings)	Llanddeiniolen	11 April 1999	SH5855060280	Quarry workshops	Located at the south-east end of Llyn Padarn to the east of Llanberis, the quarry workshops sit at the foot of the vast workings of the former Dinorwic Slate Quarry; the immediately surrounding land is now largely used as car parking for the museum.	22656	Dinorwic Slate Quarry Workshops (National Slate Museum Buildings) Upload another image See more images
Harlech Castle	Harlech	21 June 2001	SH5811031240	Castle	Imposingly sited in the centre of the town with dramatic views across Tremadog Bay and towards Snowdonia.	25500	Upload another image See more images

See also

• Grade II* listed buildings in Gwynedd
• Listed buildings in Wales

External links

Media related to at Wikimedia Commons